332354 + Interview Questions in Secondary School in Math

1.	If the system of the equations x-ky-z=0,kx-y-z=0,x+y-z=0has a non zero solution, then the possible values of k areA) - 1,2B)1,2C)0,1D)-1,1
Answer» If the system of equations x-ky-z=0,kx-y-z=0,x+y-z=0 has a nonzero solution, then the possible VALUE of k are -1,2 b Please MARK as the Brainly ANSWER

Discussion

2.	[4]2. In an election, the votes cast for two of the candidates were in theratio 5:7. If the successful candidate received 20734 votes, howmany votes did his opponent receive? direct and indirect propotion sum
Answer» ANSWER: 14810 is the CORRECT answer PLS MARK me as brainliest Step-by-step EXPLANATION:

2.

[4]2. In an election, the votes cast for two of the candidates were in theratio 5:7. If the successful candidate received 20734 votes, howmany votes did his opponent receive? direct and indirect propotion sum

Answer»

ANSWER:

14810 is the CORRECT answer

PLS MARK me as brainliest

Step-by-step EXPLANATION:

Discussion

3.	1 bander ek khambe per 1 minute me 15meter chadta aur 5 meter neeche khisk jata to bander 45 meter kitne time chade ga
Answer» ANSWER: 4min30sec should be the answer

3.

1 bander ek khambe per 1 minute me 15meter chadta aur 5 meter neeche khisk jata to bander 45 meter kitne time chade ga

Answer»

ANSWER:

4min30sec

should be the answer

Discussion

4.	Find the locus of Z if Z is equidistant from x=-4 and (2,4)
Answer» ANSWER: nzbHiaoaoqiyaywggsbsjausuus Step-by-step EXPLANATION: PLZZZZZZZ FOLLOW me plzzzzzzz follow me

4.

Find the locus of Z if Z is equidistant from x=-4 and (2,4)

Answer»

ANSWER:

nzbHiaoaoqiyaywggsbsjausuus

Step-by-step EXPLANATION:

PLZZZZZZZ FOLLOW me

plzzzzzzz follow me

Discussion

5.	Differentiate the crop production in Odisha and Maharashtra.
Answer» ANSWER { THE CROP PRODUCTION IN ODISHA} Maize and Ragi are the important coarse cereal crops. The production of ragi and maize was 1.65 and 4.82 lakh MT, RESPECTIVELY. Jowar, Bajra and small MILLETS are also GROWN in the state to a lesser extent. Arhar, mung, kulthi, biri, gram, fieldpea, cowpea and lentil are the pulse crops grown in the state {THE CROP PRODUCTION IN MAHARASHTRA} Principle crops grown in the state are rice, jowar, bajara, wheat, tur, mung, urad, gram and other pulses. The state is major producer of oilseeds. Groundnut, sunflower, soybean are major oil seed crops. Important cash crops grown are cotton, sugarcane, turmeric and vegetables.

5.

Differentiate the crop production in Odisha and Maharashtra.

Answer»

ANSWER

{ THE CROP PRODUCTION IN ODISHA}

Maize and Ragi are the important coarse cereal crops. The production of ragi and maize was 1.65 and 4.82 lakh MT, RESPECTIVELY. Jowar, Bajra and small MILLETS are also GROWN in the state to a lesser extent. Arhar, mung, kulthi, biri, gram, fieldpea, cowpea and lentil are the pulse crops grown in the state

{THE CROP PRODUCTION IN MAHARASHTRA}

Principle crops grown in the state are rice, jowar, bajara, wheat, tur, mung, urad, gram and other pulses. The state is major producer of oilseeds. Groundnut, sunflower, soybean are major oil seed crops. Important cash crops grown are cotton, sugarcane, turmeric and vegetables.

Discussion

6.	यदि tantतो sin 0 + Cos 0 का मान ज्ञात कीजिए।
Answer» ANSWER: ggruoibvdsuijnddtjjiddhnnhghcdfhb Step-by-step EXPLANATION: ejhrgrjrjrjhr he rurksmsbhrrhrjrjrj sndhgjfuiddjjdhfufufuf

6.

यदि tantतो sin 0 + Cos 0 का मान ज्ञात कीजिए।

Answer»

ANSWER:

ggruoibvdsuijnddtjjiddhnnhghcdfhb

Step-by-step EXPLANATION:

ejhrgrjrjrjhr he rurksmsbhrrhrjrjrj

sndhgjfuiddjjdhfufufuf

Discussion

7.	take a graph paper make same rectangle of same length and different width. Find the area for each. what can you conclude about the breadth and area
Answer» Step-by-step explanation: : (i) Length = 24.5 m BREADTH = 18 m ∴ Area of the rectangle = Length × Breadth = 24.5 m × 18 m = 441 m2 (ii) Length = 12.5 m Breadth = 8 dm = (8 × 10) = 80 CM = 0.8 m [since 1 dm = 10 cm and 1 m = 100 cm] ∴ Area of the rectangle = Length × Breadth = 12.5 m × 0.8 m = 10 m2

7.

take a graph paper make same rectangle of same length and different width. Find the area for each. what can you conclude about the breadth and area

Answer»

Step-by-step explanation:

:

(i) Length = 24.5 m

BREADTH = 18 m

∴ Area of the rectangle = Length × Breadth

= 24.5 m × 18 m

= 441 m2

(ii) Length = 12.5 m

Breadth = 8 dm = (8 × 10) = 80 CM = 0.8 m [since 1 dm = 10 cm and 1 m = 100 cm]

∴ Area of the rectangle = Length × Breadth

= 12.5 m × 0.8 m

= 10 m2

Discussion

8.	8. 'सर्वशुक्ला सरस्वती' किसने कहाans?
Answer» ANSWER: om sai Ram JI is a great EXAMPLE for the best of the best of the best of....

8.

8. 'सर्वशुक्ला सरस्वती' किसने कहाans?

Answer»

ANSWER:

om sai Ram JI is a great EXAMPLE for the best of the best of the best of....

Discussion

9.	What is the volume of frustum
Answer» Answer: Volume of a conical frustum = V = (1/3) * π * h * (R12 + r22 + (R1 * r2)). PLEASE MARK me as brainliest and leave a thanks below...

9.

What is the volume of frustum

Answer»

Answer:

Volume of a conical frustum = V = (1/3) * π * h * (R12 + r22 + (R1 * r2)).

PLEASE MARK me as brainliest and leave a thanks below...

Discussion

10.	Rahul sold a book at 10 % loss. had he sold it Rs 85 more , then he would made profit of 7% .what would be the cost price of the book
Answer» Answer: 500 Step-by-step explanation: DIFFERENCE between sps = difference between gain% so, 85 = 7%-(-10%) 17% is 85 17% of CP =85 1% of cp = 5 100% of cp = 500 cp=500 hope this helps

10.

Rahul sold a book at 10 % loss. had he sold it Rs 85 more , then he would made profit of 7% .what would be the cost price of the book

Answer»

Answer:

500

Step-by-step explanation:

DIFFERENCE between sps = difference between gain%

so, 85 = 7%-(-10%)

17% is 85

17% of CP =85

1% of cp = 5

100% of cp = 500

cp=500

hope this helps

Discussion

11.	Take a survey of last five years crop production in Odisha.
Answer» Step-by-step explanation: Take a SURVEY of last fiveTake a survey of last five years CROP production in ODISHA. years crop production in Odisha............

11.

Take a survey of last five years crop production in Odisha.

Answer»

Step-by-step explanation:

Take a SURVEY of last fiveTake a survey of last five years CROP production in ODISHA. years crop production in Odisha............

Discussion

12.	Integration upper limit 2 lower limit minus 2 (x power 2019) dx is equal to
Answer» Step-by-step EXPLANATION: We know that ∫ a b f(x)dx=(b−a) N→∞ lim n 1 (f(a)+f(a+h)+...+f(a+(n−1)h)) Putting a=0,b=2,h= n b−a = n 2−0 = n 2 in ∫ 0 2 x 2 +1dx I=(2−0) n→∞ lim n 1 (f(0)+f(n)+f(2n)+...+f((n−1)h)) f(0)=1 f(h)=h 2 +1 =( n 2 4 )+1 f((n−1)h)=(n−1) 2 × n 2 4 +1 ∴I=2 n→∞ lim n 1 ((1+1+...ntimes)+(0+ n 2 4 + n 2 16 +...+ n 2 (n−1) 2 )) =2 n→∞ lim n 1 (n+ n 4 6 (n−1)n(2n−1) ) =2 n→∞ lim (1+ 3 2 (1− n 1 )(2− n 1 )) =2×(1+ 3 4 )= 3 14

12.

Integration upper limit 2 lower limit minus 2 (x power 2019) dx is equal to

Answer»

Step-by-step EXPLANATION:

We know that

∫

a

b

f(x)dx=(b−a)

N→∞

lim

n

1

(f(a)+f(a+h)+...+f(a+(n−1)h))

Putting a=0,b=2,h=

n

b−a

=

n

2−0

=

n

2

in ∫

0

2

x

2

+1dx

I=(2−0)

n→∞

lim

n

1

(f(0)+f(n)+f(2n)+...+f((n−1)h))

f(0)=1

f(h)=h

2

+1

=(

n

2

4

)+1

f((n−1)h)=(n−1)

2

×

n

2

4

+1

∴I=2

n→∞

lim

n

1

((1+1+...ntimes)+(0+

n

2

4

+

n

2

16

+...+

n

2

(n−1)

2

))

=2

n→∞

lim

n

1

(n+

n

4

6

(n−1)n(2n−1)

)

=2

n→∞

lim

(1+

3

2

(1−

n

1

)(2−

n

1

))

=2×(1+

3

4

)=

3

14

Discussion

13.	The square root of the following question:1, 1212, 1443, 2894, 3615, 400
Answer» $\huge{\red{\boxed{\purple{\boxed{\blue{\boxed{\green{\boxed{\orange{\boxed{\red{\boxed{\underbrace{\mathcal{\pink{A}\orange{n}\blue{S}\red{w}\green{E}\purple{R}}}}}}}}}}}}}}}}$ $\huge{\red{\boxed{\orange{11}}}}$ $\huge{\red{\boxed{\orange{12}}}}$ $\huge{\red{\boxed{\orange{17}}}}$ $\huge{\red{\boxed{\orange{19}}}}$ $\huge{\red{\boxed{\orange{20}}}}$

13.

The square root of the following question:1, 1212, 1443, 2894, 3615, 400

Answer»

$\huge{\red{\boxed{\purple{\boxed{\blue{\boxed{\green{\boxed{\orange{\boxed{\red{\boxed{\underbrace{\mathcal{\pink{A}\orange{n}\blue{S}\red{w}\green{E}\purple{R}}}}}}}}}}}}}}}}$

$\huge{\red{\boxed{\orange{11}}}}$

$\huge{\red{\boxed{\orange{12}}}}$

$\huge{\red{\boxed{\orange{17}}}}$

$\huge{\red{\boxed{\orange{19}}}}$

$\huge{\red{\boxed{\orange{20}}}}$

Discussion

14.	Write the fractions given below in ascending order and descending order (1).3/8 4/3 2/5 5/2 6/7 (2).12/7 13/8 14/3 15/11 (3).28/12 14/6 7/3 28/12 21/9 ......waiting for solution...i know that in last one i mean in third one fourth fraction and first fractions are same but you want to make it in two other ways guys
Answer» ANSWER: (1) 2/5, 3/8, 4/3 ,5/2, 6/7 . (3) 7/3 , 14/6, 21/9 , 28/12 (2) as it is

14.

Write the fractions given below in ascending order and descending order (1).3/8 4/3 2/5 5/2 6/7 (2).12/7 13/8 14/3 15/11 (3).28/12 14/6 7/3 28/12 21/9 ......waiting for solution...i know that in last one i mean in third one fourth fraction and first fractions are same but you want to make it in two other ways guys

Answer»

ANSWER:

(1) 2/5, 3/8, 4/3 ,5/2, 6/7 .

(3) 7/3 , 14/6, 21/9 , 28/12

(2) as it is

Discussion

15.	The value of x in the following figure is?125x125
Answer» Answer: Hlo Bro/Sis, kindly POST the FIGURE too so that I can help you with this question Step-by-step explanation: Have a NICE day

15.

The value of x in the following figure is?125x125

Answer»

Answer:

Hlo Bro/Sis, kindly POST the FIGURE too so that I can help you with this question

Step-by-step explanation:

Have a NICE day

Discussion

16.	If abcd are in continued proportion than show √a5+b2c2+a3c2/b4c+d4+b2cd2=a/d
Answer» Given: $a$ , $b$ , $c$ and $d$ are in continued proportion To prove: $\sqrt{\dfrac{a^{5}+b^{2}c^{2}+a^{3}c^{2}}{b^{4}c+d^{4}+b^{2}cd^{2}}}=\dfrac{a}{d}$ Step-by-step EXPLANATION: Since $a$ , $b$ , $c$ and $d$ are in continued proportion, $\quad\dfrac{a}{b}=\dfrac{b}{c}=\dfrac{c}{d}=k$ (say), $k\neq 0$ Then, we have $\quad a=bk,b=ck,c=dk$ $\Rightarrow a=dk^{3},b=dk^{2},c=dk$ Now, Left Hand Side $=\sqrt{\dfrac{a^{5}+b^{2}c^{2}+a^{3}c^{2}}{b^{4}c+d^{4}+b^{2}cd^{2}}}$ $=\sqrt{\dfrac{(dk^{3})^{5}+(dk^{2})^{2}(dk)^{2}+(dk^{3})^{3}(dk)^{2}}{(dk^{2})^{4}(dk)+d^{4}+(dk^{2})^{2}(dk)d^{2}}}$ $=\sqrt{\dfrac{d^{5}k^{15}+d^{2}k^{4}.d^{2}k^{2}+d^{3}k^{9}.d^{2}k^{2}}{d^{2}k^{<klux>8</klux>}.dk+d^{4}+d^{2}k^{4}.dk.d^{2}}}$ $=\sqrt{\dfrac{d^{5}k^{15}+d^{4}k^{6}+d^{5}k^{11}}{d^{5}k^{9}+d^{4}+d^{5}k^{5}}}$ $=\sqrt{\dfrac{d^{4}k^{6}(dk^{9}+1+dk^{5})}{d^{4}(dk^{9}+1+dk^{5})}}$ $=\sqrt{k^{6}}$ $=k^{3}$ and Right Hand Side $=\dfrac{a}{d}$ $=\dfrac{dk^{3}}{d}$ $=k^{3}$ So, Right Hand Side = Left Hand Side Conclusion: $\sqrt{\dfrac{a^{5}+b^{2}c^{2}+a^{3}c^{2}}{b^{4}c+d^{4}+b^{2}cd^{2}}}=\dfrac{a}{d}$ Proved. Read more on Brainly.in Sachin, Simon and Dhanush scored 152 runs in a T -20 match. Their scores are in a continued proportion. Simon and Dhanush together scored 8 runs more than Sachin. Find their individual scores. brainly.in/question/2695989 The ratio of three numbers is 4 : 3 : 7 and SUM of their square is 666. What is the value of the largest of the three numbers? brainly.in/question/20656096

16.

If abcd are in continued proportion than show √a5+b2c2+a3c2/b4c+d4+b2cd2=a/d

Answer»

Given:

$a$ , $b$ , $c$ and $d$ are in continued proportion

To prove:

$\sqrt{\dfrac{a^{5}+b^{2}c^{2}+a^{3}c^{2}}{b^{4}c+d^{4}+b^{2}cd^{2}}}=\dfrac{a}{d}$

Step-by-step EXPLANATION:

Since $a$ , $b$ , $c$ and $d$ are in continued proportion,

$\quad\dfrac{a}{b}=\dfrac{b}{c}=\dfrac{c}{d}=k$ (say), $k\neq 0$

Then, we have

$\quad a=bk,b=ck,c=dk$

$\Rightarrow a=dk^{3},b=dk^{2},c=dk$

Now, Left Hand Side

$=\sqrt{\dfrac{a^{5}+b^{2}c^{2}+a^{3}c^{2}}{b^{4}c+d^{4}+b^{2}cd^{2}}}$

$=\sqrt{\dfrac{(dk^{3})^{5}+(dk^{2})^{2}(dk)^{2}+(dk^{3})^{3}(dk)^{2}}{(dk^{2})^{4}(dk)+d^{4}+(dk^{2})^{2}(dk)d^{2}}}$

$=\sqrt{\dfrac{d^{5}k^{15}+d^{2}k^{4}.d^{2}k^{2}+d^{3}k^{9}.d^{2}k^{2}}{d^{2}k^{<klux>8</klux>}.dk+d^{4}+d^{2}k^{4}.dk.d^{2}}}$

$=\sqrt{\dfrac{d^{5}k^{15}+d^{4}k^{6}+d^{5}k^{11}}{d^{5}k^{9}+d^{4}+d^{5}k^{5}}}$

$=\sqrt{\dfrac{d^{4}k^{6}(dk^{9}+1+dk^{5})}{d^{4}(dk^{9}+1+dk^{5})}}$

$=\sqrt{k^{6}}$

$=k^{3}$

and Right Hand Side

$=\dfrac{a}{d}$

$=\dfrac{dk^{3}}{d}$

$=k^{3}$

So, Right Hand Side = Left Hand Side

Conclusion:

$\sqrt{\dfrac{a^{5}+b^{2}c^{2}+a^{3}c^{2}}{b^{4}c+d^{4}+b^{2}cd^{2}}}=\dfrac{a}{d}$

Proved.

17.	Take a survey of different crop production in Odisha.
Answer» ANSWER: I LIVE in TELANGANA...not in ODISHA...

Take a survey of different crop production in Odisha.

Answer»

ANSWER:

I LIVE in TELANGANA...not in ODISHA...

Discussion

18.	The product of 3x ,5x^2and 2x^4 is
Answer» Answer: (3X)(5x^2)(2x^2)=(352)(xx^2x^4)=(30)(x^7)=30x^7

18.

The product of 3x ,5x^2and 2x^4 is

Answer»

Answer:

(3X)*(5x^2)*(2x^2)=(3*5*2)*(x*x^2*x^4)=(30)*(x^7)=30x^7

Discussion

19.	Q4. Smax dhe equalsImportant CallsaCalls to ReplytalogIt line 2xSin te bI + +(6) I loolit Sin dalt(d) log/1t sin alteC.) tant sin x)+cС.
Answer» ANSWER: don't KNOW what you ASKING about

19.

Q4. Smax dhe equalsImportant CallsaCalls to ReplytalogIt line 2xSin te bI + +(6) I loolit Sin dalt(d) log/1t sin alteC.) tant sin x)+cС.

Answer»

ANSWER:

don't KNOW what you ASKING about

Discussion

20.	Find the value of 'k' for which the following system of equation has aunique solution:a) kx + 2y = 53x + y = 1answer :______b) 4x +ky+8 = 02x+2y+2 = 0ans :______C) x + 2y = 35x + ky = -7ans:________
Answer» ANSWER: MAINTAIN PROPER ATTENDANCE RECORDS

20.

Find the value of 'k' for which the following system of equation has aunique solution:a) kx + 2y = 53x + y = 1answer :b) 4x +ky+8 = 02x+2y+2 = 0ans :C) x + 2y = 35x + ky = -7ans:____

Answer»

ANSWER:

MAINTAIN PROPER ATTENDANCE RECORDS

Discussion

21.	What is the expended form of RHS?
Answer» Step-by-step explanation: usual, PROVE it using the GENERAL heuristic that X=YX=Y if and only if X⊆Y and X⊇Y.X⊆Y and X⊇Y. In other words, take a GENERIC ELEMENT of A×(B−C)A×(B−C) and show that it also must be an element of (A×B)−(A×C)(A×B)−(A×C), and vice versa.

21.

What is the expended form of RHS?

Answer»

Step-by-step explanation:

usual, PROVE it using the GENERAL heuristic that

X=YX=Y if and only if X⊆Y and X⊇Y.X⊆Y and X⊇Y.

In other words, take a GENERIC ELEMENT of A×(B−C)A×(B−C) and show that it also must be an element of (A×B)−(A×C)(A×B)−(A×C), and vice versa.

Discussion

22.	PROJECT:detail discussion on maxima minima of given function with special reference to the following cases: difference between local and global minima
Answer» Step-by-step explanation: In mathematical analysis, the maxima and minima (the RESPECTIVE plurals of maximum and minimum) of a function, known COLLECTIVELY as extrema (the plural of extremum), are the largest and smallest value of the function, EITHER within a given range (the local or relative extrema), or on the entire domain (the global or absolute extrema).[1][2][3] Pierre de FERMAT was one of the first mathematicians to propose a general technique, adequality, for finding the maxima and minima of functions. As defined in set theory, the maximum and minimum of a set are the greatest and least elements in the set, respectively. Unbounded infinite sets, such as the set of real numbers, have no minimum or maximum. please follow me and mark as brainliest...

22.

PROJECT:detail discussion on maxima minima of given function with special reference to the following cases: difference between local and global minima

Answer»

Step-by-step explanation:

In mathematical analysis, the maxima and minima (the RESPECTIVE plurals of maximum and minimum) of a function, known COLLECTIVELY as extrema (the plural of extremum), are the largest and smallest value of the function, EITHER within a given range (the local or relative extrema), or on the entire domain (the global or absolute extrema).[1][2][3] Pierre de FERMAT was one of the first mathematicians to propose a general technique, adequality, for finding the maxima and minima of functions.

As defined in set theory, the maximum and minimum of a set are the greatest and least elements in the set, respectively. Unbounded infinite sets, such as the set of real numbers, have no minimum or maximum.

please follow me and mark as brainliest...

Discussion

23.	ishita wants to paint a cylindrical flower vase whose height is 7m , 2 m internal radius , 4 m external radius find the totak area required to paint. we can paint at bottom also
Answer» Answer: HEY MATE HERE IS YOUR ANSWER .... Step-by-step explanation: Ishita WANTS to paint a cylindrical flower vase whose height is 7m , 2 m internal RADIUS , 4 m external radius . MARK AS BRAINLIEST ANSWER AND ALSO GIVE THANKS !!!

23.

ishita wants to paint a cylindrical flower vase whose height is 7m , 2 m internal radius , 4 m external radius find the totak area required to paint. we can paint at bottom also

Answer»

Answer:

HEY MATE HERE IS YOUR ANSWER ....

Step-by-step explanation:

Ishita WANTS to paint a cylindrical flower vase whose height is 7m , 2 m internal RADIUS , 4 m external radius .

MARK AS BRAINLIEST ANSWER

AND ALSO GIVE THANKS !!!

Discussion

24.	Give the correct answerif the ans will be correct I will follow and thank ....youso please give correct.......
Answer» ANSWER: the TOTAL amount that SHUBHI has to pay is 31860 Step-by-step explanation: 1000 rupees PER gram 5gm=5000 earnings cost=22000 5000+22000=27000 18% GDP So, 27000×18/100 27000×0.18 =4860 total amount =27000+4860 ===31860

24.

Give the correct answerif the ans will be correct I will follow and thank ....youso please give correct.......

Answer»

ANSWER:

the TOTAL amount that SHUBHI has to pay is 31860

Step-by-step explanation:

1000 rupees PER gram

5gm=5000

earnings cost=22000

5000+22000=27000

18% GDP

So, 27000×18/100

27000×0.18 =4860

total amount =27000+4860

===31860

Discussion

25.	AECC MIL (1st Semesसंप्रेषण है-(a) केवल विज्ञान(c) कला और विज्ञान दोनों(b) केवल(d) इनमें से
Answer» Step-by-step EXPLANATION: OPTION d is UR ANSWER MATE :)

25.

AECC MIL (1st Semesसंप्रेषण है-(a) केवल विज्ञान(c) कला और विज्ञान दोनों(b) केवल(d) इनमें से

Answer»

Step-by-step EXPLANATION:

OPTION d is UR ANSWER MATE :)

Discussion

26.	If A 's one day work is 3/20,then A can finish the while work in.......days ?
Answer» Answer:In the seventh day Step-by-step explanation: A's one day WORK is 3/20 In SIX DAYS he can COMPLETE 18/20 of his work in the seventh day (21/20),he can complete the ENTIRE work

26.

If A 's one day work is 3/20,then A can finish the while work in.......days ?

Answer»

Answer:In the seventh day

Step-by-step explanation:

A's one day WORK is 3/20

In SIX DAYS he can COMPLETE 18/20 of his work

in the seventh day (21/20),he can complete the ENTIRE work

Discussion

27.	ek wach h usme 2 needle h ek minute ki dusri second ki dono needle ek dosre k upper h aur jitna bjne Walla h uttna minute Baaki h to time kya hoga
Answer» ANSWER: I THINK 10 Step-by-step EXPLANATION: what is the CORRECT answer?

27.

ek wach h usme 2 needle h ek minute ki dusri second ki dono needle ek dosre k upper h aur jitna bjne Walla h uttna minute Baaki h to time kya hoga

Answer»

ANSWER:

I THINK 10

Step-by-step EXPLANATION:

what is the CORRECT answer?

Discussion

28.	Rationalize the denominator 1/√11-3
Answer» Answer: 1/√11-3×√11+3/√11+3 √11+3/√11-9 √11+3/2

28.

Rationalize the denominator 1/√11-3

Answer»

Answer:

1/√11-3×√11+3/√11+3

√11+3/√11-9

√11+3/2

Discussion

29.	Find the values of A and B A 1+_1___B B O
Answer» Step-by-step EXPLANATION: gsvshusskhzhsuisowanjqjq

29.

Find the values of A and B A 1+_1___B B O

Answer»

Step-by-step EXPLANATION:

gsvshusskhzhsuisowanjqjq

Discussion

30.	If A is a square matrix of order 2 then det (-3A)
Answer» ANSWER: it is the answer

30.

If A is a square matrix of order 2 then det (-3A)

Answer»

ANSWER:

it is the answer

Discussion

31.	1/3abc from -2/3abc
Answer» Step-by-step explanation: 7a+B+c=1……………….(1) ab+bc+ca=1/3…………(2) ab+c(b+a)=1/3 ab+c(1-c)=1/3 ab+c-c^2=1/3…………….(3) From eq.(2) b(a+c)+ca=1/3 b(1-b)+ca=1/3 ca+b-b^2=1/3………………..(4) Again from eq.(2) bc+ca+ab=1/3 bc+a(c+b)=1/3 bc+a(1-a)=1/3 bc+a-a^2=1/3………………….(5) subtract eq.(4)from(3) ab-ca-b+c+b^2-c^2=0 a(b-c)-1(b-c)+(b-c)(b+c)=0 (b-c)(a-1+b+c)=0 Either b-c=0 => b=c………………(6) Suntract eq.(5)from(4). ca-bc-a+b+a^2-b^2=0 c(a-b)-1(a-b)+(a-b)(a+b)=0 (a-b)(c-1+a+b)=0 Either a-b=0 => a =b………………(7) From eq.(7) and (6). a=b=c =k(let) a : b : c = k : k : k or 1 : 1 : 1 , answer.

31.

1/3abc from -2/3abc

Answer»

Step-by-step explanation:

7a+B+c=1……………….(1)

ab+bc+ca=1/3…………(2)

ab+c(b+a)=1/3

ab+c(1-c)=1/3

ab+c-c^2=1/3…………….(3)

From eq.(2)

b(a+c)+ca=1/3

b(1-b)+ca=1/3

ca+b-b^2=1/3………………..(4)

Again from eq.(2)

bc+ca+ab=1/3

bc+a(c+b)=1/3

bc+a(1-a)=1/3

bc+a-a^2=1/3………………….(5)

subtract eq.(4)from(3)

ab-ca-b+c+b^2-c^2=0

a(b-c)-1(b-c)+(b-c)(b+c)=0

(b-c)(a-1+b+c)=0

Either b-c=0 => b=c………………(6)

Suntract eq.(5)from(4).

ca-bc-a+b+a^2-b^2=0

c(a-b)-1(a-b)+(a-b)(a+b)=0

(a-b)(c-1+a+b)=0

Either a-b=0 => a =b………………(7)

From eq.(7) and (6).

a=b=c =k(let)

a : b : c = k : k : k or 1 : 1 : 1 , answer.

Discussion

32.	Determine the square root of 196 through decomposition into prime factor
Answer» ANSWER: 2 \|196 2 \|98 7\|49 7 \| 7 \| 1 196=2277 = 24 =14

32.

Determine the square root of 196 through decomposition into prime factor

Answer»

ANSWER:

2 |196

2 |98

7|49

7 | 7

| 1

196=2*2*7*7

= 2*4 =14

Discussion

33.	a tap fill a tank in 6 hours. another tap fill the tank in 8 hours. the outlet pipe empties it in 12 hours. if all the three taps are opened together, how long will it take to fill the tank
Answer» ANSWER: Step-by-step explanation: Part of the tank filled in 1 HOUR = 1\div8 Part of the tank EMPTIED in 1 hour = 1\div16 When both the taps are OPENED simultaneously, part of CISTERN fill in 1 hour = \frac{1}{8}-\frac{1}{16}=\frac{2-1}{16}=\frac{1}{16} Hence, the tank will be filled in 16 hours.

33.

a tap fill a tank in 6 hours. another tap fill the tank in 8 hours. the outlet pipe empties it in 12 hours. if all the three taps are opened together, how long will it take to fill the tank

Answer»

ANSWER:

Step-by-step explanation:

Part of the tank filled in 1 HOUR = 1\div8

Part of the tank EMPTIED in 1 hour = 1\div16

When both the taps are OPENED simultaneously, part of CISTERN fill in 1 hour = \frac{1}{8}-\frac{1}{16}=\frac{2-1}{16}=\frac{1}{16}

Hence, the tank will be filled in 16 hours.

Discussion

34.	found the unute vector A in the directiom of vector A where vector A= 5i+2i......plese slove this nomerical
Answer» ANSWER: Step-by-step EXPLANATION: YES

34.

found the unute vector A in the directiom of vector A where vector A= 5i+2i......plese slove this nomerical

Answer»

ANSWER:

Step-by-step EXPLANATION:

YES

Discussion

35.	Find two rational number between 1 and 2
Answer» Answer: the TWO rational numbers between 1 and 2 are as follows -: 4/3 and 5/3 Explaination : all rational numbers can be written in p/ Q form where q is not equal 0 examples of rational no are natural number, whole numbers etc. here 1 and 2 are natural number when we convert these numbers into FRACTION we get 1/1 and 2 / 1 1/1 * 3/3 = 3/3 and 2/1 * 3/3 = 6/3 so rational numbers between 1 and 2 is 4/3 and 5/3 HOPE it's help

35.

Find two rational number between 1 and 2

Answer»

Answer:

the TWO rational numbers between 1 and 2 are as follows -: 4/3 and 5/3

Explaination :

all rational numbers can be written in p/ Q form where q is not equal 0
examples of rational no are natural number, whole numbers etc.
here 1 and 2 are natural number when we convert these numbers into FRACTION we get 1/1 and 2 / 1
1/1 * 3/3 = 3/3 and 2/1 * 3/3 = 6/3
so rational numbers between 1 and 2 is 4/3 and 5/3

HOPE it's help

Discussion

36.	Factorize--4x²/9-9y²/16
Answer» Step-by-step EXPLANATION: HOPE it HELPS you .......☺️❣️☺️..........

36.

Factorize--4x²/9-9y²/16

Answer»

Step-by-step EXPLANATION:

HOPE it HELPS you

.......☺️❣️☺️..........

Discussion

37.	a tap fill a tank in 6 hours. another tap fill the tank in 8 hours. the outlet pipe empties it in 12 hours. if all the three taps are opened together, how long will it take to fill the tank?
Answer» Answer: for this answer , we NEED to use average method Step-by-step explanation: 6+8+12=26 , 26÷3=8.66 , therefore the three taps can FILL the TANK in 8.66 hrs ..... please mark me as brainliest and please follow me.......

37.

a tap fill a tank in 6 hours. another tap fill the tank in 8 hours. the outlet pipe empties it in 12 hours. if all the three taps are opened together, how long will it take to fill the tank?

Answer»

Answer:

for this answer , we NEED to use average method

Step-by-step explanation:

6+8+12=26 , 26÷3=8.66 , therefore the three taps can FILL the TANK in 8.66 hrs .....

please mark me as brainliest

and please follow me.......

Discussion

38.	Which of the following are similar figures a)2triangles b)2circles c)2quadrilaterals d)2rectangles
Answer» Answer: 2 Circles Step-by-step explanation: 2 Circles will similar. 2 triangle can be DIFFERENT like EQUILATERAL and SCALENE triangle 2 RECTANGLE can be different 2 quadrilateral ALSO can be different but circles cannot be different they always have same shape.

38.

Which of the following are similar figures a)2triangles b)2circles c)2quadrilaterals d)2rectangles

Answer»

Answer:

2 Circles

Step-by-step explanation:

2 Circles will similar.

2 triangle can be DIFFERENT like EQUILATERAL and SCALENE triangle

2 RECTANGLE can be different

2 quadrilateral ALSO can be different

but circles cannot be different they always have same shape.

Discussion

39.	If the radii of ends of a frustum are 14cm and 6cm respectivelyand its height is 6cm. find its slant height.
Answer» =1356.48cm² $\huge\mathbb\purple{ANSWER}$

39.

If the radii of ends of a frustum are 14cm and 6cm respectivelyand its height is 6cm. find its slant height.

Answer»

=1356.48cm²

$\huge\mathbb\purple{ANSWER}$

Discussion

40.	The area of a square garden is 2025 square. cm. what is the length of the side of a square
Answer» Answer:length of the SIDE is 45cm Step-by-step EXPLANATION: AREA of the square garden=2025 sq.cm *Area of a square =sideside (side)^2=2025 side=√2025 =45cm**

40.

The area of a square garden is 2025 square. cm. what is the length of the side of a square

Answer»

Answer:length of the SIDE is 45cm

Step-by-step EXPLANATION:

AREA of the square garden=2025 sq.cm

Area of a square =side*side

(side)^2=2025

side=√2025

=45cm

Discussion

41.	Section 1 of 7 Section #1 (1234Question # 2RevisitChoose the best answerA makes an article for Rs.120 and sells it to B at a profit of 25%. B sells it to C who sells it for Rs.19making a profit of 10%. What profit percent did B make?
Answer» ANSWER: SPAMMING cp=120 then sp=2349

41.

Section 1 of 7 Section #1 (1234Question # 2RevisitChoose the best answerA makes an article for Rs.120 and sells it to B at a profit of 25%. B sells it to C who sells it for Rs.19making a profit of 10%. What profit percent did B make?

Answer»

ANSWER:

SPAMMING

cp=120

then sp=2349

Discussion

42.	What is the value of x,? 2x+78339-83737
Answer» ANSWER: $2x + 78339 - 83737 = 0 \\ 2x = 83737 - 78339 \\ x = \frac{5398}{2} = 2699$

42.

What is the value of x,? 2x+78339-83737

Answer»

ANSWER:

$2x + 78339 - 83737 = 0 \\ 2x = 83737 - 78339 \\ x = \frac{5398}{2} = 2699$

Discussion

43.	in out of the total number of people 80 percentage of the people want for connect gross and 65% of the people on paddy fields what is the minimum percentage of people on both how to find AUB in this question
Answer» Answer: 3.2 % MINIMUM PERCENTAGE

43.

in out of the total number of people 80 percentage of the people want for connect gross and 65% of the people on paddy fields what is the minimum percentage of people on both how to find AUB in this question

Answer»

Answer:

3.2 % MINIMUM PERCENTAGE

Discussion

44.	What did beldeo always carry with him
Answer» ANSWER: I THINK it so you MUST CHEAK it on googal all your answer will be CLEAR.

44.

What did beldeo always carry with him

Answer»

ANSWER:

I THINK it so you MUST CHEAK it on googal all your answer will be CLEAR.

Discussion

45.	If the mean of x, x+3,x+6,x+9,x+12,x+15.is 18 find the mean of first four observation
Answer» Given : Given observations = X,(x + 3),(x + 6),(x + 9),(x + 12),(x + 15). Mean of all the observations = 18. No. if term = 6 To find : Mean of first four observations. Solution : We KNOW the FORMULA for mean,i.e, $\boxed{\bf{Mean = \dfrac{\Sigma x_{i}}{n}}}$ Where : $\bf{\Sigma x_{i}}$ = Sum of all observations. $\bf{n}$ = No. of all observations. By using the formula for mean and substituting the values in it, we get : $:\implies \bf{Mean = \dfrac{\Sigma x_{i}}{n}} \\ \\ \\$ $:\implies \bf{Mean = \dfrac{x_{1} + x_{2} + x_{3} + x_{4} + x_{5} + x_{6}}{n}} \\ \\ \\$ $:\implies \bf{18 = \dfrac{x + (x + 3) + (x + 6) + (x + 9) + (x + 12) + (x + 15)}{6}} \\ \\ \\$ $:\implies \bf{18 = \dfrac{(x + x + x + x + x + x) + (3 + 6 + 9 + 12 + 15)}{6}} \\ \\ \\$ $:\implies \bf{18 = \dfrac{6x + 45}{6}} \\ \\ \\$ $:\implies \bf{18 \times 6 = 6x + 45} \\ \\ \\$ $:\implies \bf{108 = 6x + 45} \\ \\ \\$ $:\implies \bf{108 - 45 = 6x} \\ \\ \\$ $:\implies \bf{63 = 6x} \\ \\ \\$ $:\implies \bf{\dfrac{63}{6} = x} \\ \\ \\$ $:\implies \bf{10.5 = x} \\ \\ \\$ $\boxed{\therefore \bf{x = 10.5}} \\ \\ \\$ Hence the value of x 10.5. From the above equation , we get : First term = x = 10.5 Second term = (x + 3) = 13.5 Third term = (x + 6) = 16.5 Fourth term = (x + 9) = 19.5 Fifth term = (x + 12) = 22.5 Sixth term = (x + 15) = 25.5 Now to find the mean of first four terms of the observation. $\boxed{\bf{Mean = \dfrac{\Sigma x_{i}}{n}}}$ Where : $\bf{\Sigma x_{i}}$ = Sum of all observations. $\bf{n}$ = No. of all observations. By using the formula for mean and substituting the values in it, we get : $:\implies \bf{Mean = \dfrac{\Sigma x_{i}}{n}} \\ \\ \\$ $:\implies \bf{Mean = \dfrac{x_{1} + x_{2} + x_{3} + x_{4}}{n}} \\ \\ \\$ $:\implies \bf{Mean = \dfrac{10.5 + 13.5 + 16.5 + 19.5}{4}} \\ \\ \\$ $:\implies \bf{Mean = \dfrac{10.5 + 13.5 + 16.5 + 19.5}{4}} \\ \\ \\$ $:\implies \bf{Mean = \dfrac{60}{4}} \\ \\ \\$ $:\implies \bf{Mean = 15} \\ \\ \\$ $\boxed{\therefore \bf{Mean = 15}} \\ \\ \\$ Hence the mean of first four terms of the observation is 15.

45.

If the mean of x, x+3,x+6,x+9,x+12,x+15.is 18 find the mean of first four observation

Answer»

Given :

Given observations = X,(x + 3),(x + 6),(x + 9),(x + 12),(x + 15).

Mean of all the observations = 18.

No. if term = 6

To find :

Mean of first four observations.

Solution :

We KNOW the FORMULA for mean,i.e,

$\boxed{\bf{Mean = \dfrac{\Sigma x_{i}}{n}}}$

Where :

$\bf{\Sigma x_{i}}$ = Sum of all observations.

$\bf{n}$ = No. of all observations.

By using the formula for mean and substituting the values in it, we get :

$:\implies \bf{Mean = \dfrac{\Sigma x_{i}}{n}} \\ \\ \\$

$:\implies \bf{Mean = \dfrac{x_{1} + x_{2} + x_{3} + x_{4} + x_{5} + x_{6}}{n}} \\ \\ \\$

$:\implies \bf{18 = \dfrac{x + (x + 3) + (x + 6) + (x + 9) + (x + 12) + (x + 15)}{6}} \\ \\ \\$

$:\implies \bf{18 = \dfrac{(x + x + x + x + x + x) + (3 + 6 + 9 + 12 + 15)}{6}} \\ \\ \\$

$:\implies \bf{18 = \dfrac{6x + 45}{6}} \\ \\ \\$

$:\implies \bf{18 \times 6 = 6x + 45} \\ \\ \\$

$:\implies \bf{108 = 6x + 45} \\ \\ \\$

$:\implies \bf{108 - 45 = 6x} \\ \\ \\$

$:\implies \bf{63 = 6x} \\ \\ \\$

$:\implies \bf{\dfrac{63}{6} = x} \\ \\ \\$

$:\implies \bf{10.5 = x} \\ \\ \\$

$\boxed{\therefore \bf{x = 10.5}} \\ \\ \\$

Hence the value of x 10.5.

From the above equation , we get :

First term = x = 10.5

Second term = (x + 3) = 13.5

Third term = (x + 6) = 16.5

Fourth term = (x + 9) = 19.5

Fifth term = (x + 12) = 22.5

Sixth term = (x + 15) = 25.5

Now to find the mean of first four terms of the observation.

$\boxed{\bf{Mean = \dfrac{\Sigma x_{i}}{n}}}$

Where :

$\bf{\Sigma x_{i}}$ = Sum of all observations.

$\bf{n}$ = No. of all observations.

By using the formula for mean and substituting the values in it, we get :

$:\implies \bf{Mean = \dfrac{\Sigma x_{i}}{n}} \\ \\ \\$

$:\implies \bf{Mean = \dfrac{x_{1} + x_{2} + x_{3} + x_{4}}{n}} \\ \\ \\$

$:\implies \bf{Mean = \dfrac{10.5 + 13.5 + 16.5 + 19.5}{4}} \\ \\ \\$

$:\implies \bf{Mean = \dfrac{60}{4}} \\ \\ \\$

$:\implies \bf{Mean = 15} \\ \\ \\$

$\boxed{\therefore \bf{Mean = 15}} \\ \\ \\$

Hence the mean of first four terms of the observation is 15.

Discussion

46.	Divide _512/2with _1024/21
Answer» 5.25 hope it HELPS.....:)

46.

Divide _512/2with _1024/21

Answer»

5.25

hope it HELPS.....:)

Discussion

47.	The number of values of x which satisfythe equationsin -1x – cos-1 x = sin(5x – 4) is
Answer» Answer: use goggle PLATEFORM and TAKE a BEST answer I hope so it will be HELP you

47.

The number of values of x which satisfythe equationsin -1x – cos-1 x = sin(5x – 4) is

Answer»

Answer:

use goggle PLATEFORM and TAKE a BEST answer

I hope so it will be HELP you

Discussion

48.	Factorize--x²-10x+21
Answer» *Therefore* *the* *ANSWER* *that* *you* *REQUIRE* *will* be (*x-7)(x-3) Step-by-step explanation:* x²-10x + 21 = (x)²+[(-7)+(-3)]x + [(-7)×(-3)] x²+(a+b)x +AB = (x+a)(x+b) therefore , x²-10x + 21 [x+(-7)] [x+(-3)] = (x-7)(x-3)

48.

Factorize--x²-10x+21

Answer»

Therefore the ANSWER that you REQUIRE will be (x-7)(x-3)

Step-by-step explanation:

x²-10x + 21

= (x)²+[(-7)+(-3)]x + [(-7)×(-3)]

x²+(a+b)x +AB = (x+a)(x+b)

therefore , x²-10x + 21

[x+(-7)] [x+(-3)]

= (x-7)(x-3)

Discussion

49.	a tank containing 50 liter of water develops a leak and loses water at a constant rate. after 20 minutes it contain 40 liters. after a further 30 minutes the tank is 5% of its full capacity. determine the original fraction.
Answer» Step-by-step EXPLANATION: SURE for FREE POINTS LOL

49.

a tank containing 50 liter of water develops a leak and loses water at a constant rate. after 20 minutes it contain 40 liters. after a further 30 minutes the tank is 5% of its full capacity. determine the original fraction.

Answer»

Step-by-step EXPLANATION:

SURE for FREE POINTS LOL

Discussion

50.	I am a 2 digit number, add my digits together and you get 5, I am not an odd number, I am greater than 45, what am I?
Answer» Answer: 50................. ..

50.

I am a 2 digit number, add my digits together and you get 5, I am not an odd number, I am greater than 45, what am I?

Answer»

Answer:

50.................

..

Discussion

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AECC MIL (1st Semesसंप्रेषण है-(a) केवल विज्ञान(c) कला और विज्ञान दोनों(b) केवल(d) इनमें से

If A 's one day work is 3/20,then A can finish the while work in.......days ?

ek wach h usme 2 needle h ek minute ki dusri second ki dono needle ek dosre k upper h aur jitna bjne Walla h uttna minute Baaki h to time kya hoga

Rationalize the denominator 1/√11-3

Find the values of A and B A 1+_1___B B O

If A is a square matrix of order 2 then det (-3A)

1/3abc from -2/3abc

a tap fill a tank in 6 hours. another tap fill the tank in 8 hours. the outlet pipe empties it in 12 hours. if all the three taps are opened together, how long will it take to fill the tank

found the unute vector A in the directiom of vector A where vector A= 5i+2i......plese slove this nomerical

Find two rational number between 1 and 2

a tap fill a tank in 6 hours. another tap fill the tank in 8 hours. the outlet pipe empties it in 12 hours. if all the three taps are opened together, how long will it take to fill the tank?

Which of the following are similar figures a)2triangles b)2circles c)2quadrilaterals d)2rectangles

If the radii of ends of a frustum are 14cm and 6cm respectivelyand its height is 6cm. find its slant height.

The area of a square garden is 2025 square. cm. what is the length of the side of a square

Section 1 of 7 Section #1 (1234Question # 2RevisitChoose the best answerA makes an article for Rs.120 and sells it to B at a profit of 25%. B sells it to C who sells it for Rs.19making a profit of 10%. What profit percent did B make?

What is the value of x,? 2x+78339-83737

in out of the total number of people 80 percentage of the people want for connect gross and 65% of the people on paddy fields what is the minimum percentage of people on both how to find AUB in this question

What did beldeo always carry with him

If the mean of x, x+3,x+6,x+9,x+12,x+15.is 18 find the mean of first four observation

Divide _512/2with _1024/21

The number of values of x which satisfythe equationsin -1x – cos-1 x = sin(5x – 4) is