332354 + Interview Questions in Secondary School in Math

1.	Find the modulus of(2+3i)-(5i-4).can someone please answer this?
Answer» Answer: hope this helps Step-by-step explanation: Calculation: z = (2+3i)-(5i-4) Result: Rectangular form: z = 6-2i Angle notation (phasor): z = 6.3245553 ∠ -18°26'6″ Polar form: z = 6.3245553 × (cos (-18°26'6″) + i sin (-18°26'6″)) Exponential form: z = 6.3245553 × ei (-0.1024164) Polar coordinates: R = \|z\| = 6.3245553 ... magnitude (modulus, ABSOLUTE VALUE) θ = arg z = -0.3217506 rad = -18.43495° = -18°26'6″ = -0.1024164π rad ... angle (argument or phase) Cartesian coordinates: Cartesian form of imaginary number: z = 6-2i Real part: x = Re z = 6 Imaginary part: y = Im z = -2 Calculation steps Complex number: 2+3i Subtract: 5i - 4 = -4+5i Subtract: the result of step No. 1 - the result of step No. 2 = (2+3i) - (-4+5i) = (2+4) + (3-5)i = 6-2i

1.

Find the modulus of(2+3i)-(5i-4).can someone please answer this?

Answer»

Answer:

hope this helps

Step-by-step explanation:

Calculation:

z = (2+3i)-(5i-4)

Result:

Rectangular form:

z = 6-2i

Angle notation (phasor):

z = 6.3245553 ∠ -18°26'6″

Polar form:

z = 6.3245553 × (cos (-18°26'6″) + i sin (-18°26'6″))

Exponential form:

z = 6.3245553 × ei (-0.1024164)

Polar coordinates:

R = |z| = 6.3245553 ... magnitude (modulus, ABSOLUTE VALUE)

θ = arg z = -0.3217506 rad = -18.43495° = -18°26'6″ = -0.1024164π rad ... angle (argument or phase)

Cartesian coordinates:

Cartesian form of imaginary number: z = 6-2i

Real part: x = Re z = 6

Imaginary part: y = Im z = -2

Calculation steps

Complex number: 2+3i

Subtract: 5i - 4 = -4+5i

Subtract: the result of step No. 1 - the result of step No. 2 = (2+3i) - (-4+5i) = (2+4) + (3-5)i = 6-2i

Discussion

2.	Which of the following can't respect probability
Answer» HI you are just giving the heading not the OPTIONS watch carefully and POST the QUESTION

Discussion

3.	PAGE No.DATE//Formula for series1, 6, 15, 28
Answer» Answer: 45 Step-by-step explanation: 1+5=6 6+9=15 15+13=28 28+17=45

3.

PAGE No.DATE//Formula for series1, 6, 15, 28

Answer»

Answer:

45

Step-by-step explanation:

1+5=6

6+9=15

15+13=28

28+17=45

Discussion

4.	एरिया आफ रैक्टेंगल प्लॉट इन 462 स्क्वायर मीटर एंड 28 मीटर फाइंड द पैरामीटर ऑफ द प्लांट
Answer» ANSWER: 980 Step-by-step EXPLANATION: this is only the answer

4.

एरिया आफ रैक्टेंगल प्लॉट इन 462 स्क्वायर मीटर एंड 28 मीटर फाइंड द पैरामीटर ऑफ द प्लांट

Answer»

ANSWER:

980

Step-by-step EXPLANATION:

this is only the answer

Discussion

5.	Divide the polynomial8x6 - 16x5 + 24x4 + 8x2
Answer» Answer: 8x^6 - 16x^5 + 24x⁴ + 8x² 222x²x²x² - (2)³ x² x² X + 222*3x² x² + 2³ x x

5.

Divide the polynomial8x6 - 16x5 + 24x4 + 8x2

Answer»

Answer:

8x^6 - 16x^5 + 24x⁴ + 8x²

2*2*2x²x²x² - (2)³ x² x² X + 2*2*2*3x² x² + 2³ x x

Discussion

6.	IfO
Answer» ANSWER: hlw, HAPPY VALENTINE day. Happy Black day Vande MATRAM.

6.

IfO

Answer»

ANSWER:

hlw,

HAPPY VALENTINE day.

Happy Black day

Vande MATRAM.

Discussion

7.	Ii)यदि आपके परिवार में 8 व्यक्तियों के लिए 6 दिन का पर्याप्त खाद्य सामगग्री है यदि आपके घर 4 मेहमान औरआ जाएँ तो यह सामग्री कितने दिनों के लिए पर्याप्त होगी?उत्तर
Answer» Step-by-step EXPLANATION: यदि आपके परिवार में 8 व्यक्तियों के लिए 6 दिन का पर्याप्त खाद्य सामगग्री है यदि आपके घर 4 मेहमान और आ जाएँ तो यह सामग्री कितने दिनों के लिए पर्याप्त होगी?

7.

Ii)यदि आपके परिवार में 8 व्यक्तियों के लिए 6 दिन का पर्याप्त खाद्य सामगग्री है यदि आपके घर 4 मेहमान औरआ जाएँ तो यह सामग्री कितने दिनों के लिए पर्याप्त होगी?उत्तर

Answer»

Step-by-step EXPLANATION:

यदि आपके परिवार में 8 व्यक्तियों के लिए 6 दिन का पर्याप्त खाद्य सामगग्री है यदि आपके घर 4 मेहमान और

आ जाएँ तो यह सामग्री कितने दिनों के लिए पर्याप्त होगी?

Discussion

8.	Dervative formula and example
Answer» ANSWER: ∂f∂x(x,y)∂f∂x(1,2)∂f∂y(x,y)∂f∂y(1,2)=2x=2=2y=4 So DF(1,2)=[ 2 4 ]. Since both partial derivatives ∂f∂x(x,y) and ∂f∂y(x,y) are CONTINUOUS functions, we know that f(x,y) is DIFFERENTIABLE. Therefore, Df(1,2) is the derivative of f, and the function has a tangent plane there. To calculate the equation of the tangent plane, the only additional calculation is the value of f at (x,y)=(1,2), which is f(1,2)=12+22=5. The equation for the tangent plane is z=f(1,2)+∂f∂x(1,2)(x−1)+∂f∂y(1,2)(y−2)=5+2(x−1)+4(y−2) For a scalar-valued function of two variables such as f(x,y), the tangent plane is the linear approximation. We can write the linear approximation as L(x,y)=5+2(x−1)+4(y−2). Example 1' If looked at the point (2,3), what changes? Solution: The partial derivatives change, so the derivative becomes ∂f∂x(2,3)∂f∂y(2,3)Df(2,3)=4=6=[ 4 6 ]. The equation for the tangent plane, i.e., the linear approximation, becomes z=L(x,y)=f(2,3)+∂f∂x(2,3)(x−2)+∂f∂y(2,3)(y−3)=13+4(x−2)+6(y−3)

8.

Dervative formula and example

Answer»

ANSWER:

∂f∂x(x,y)∂f∂x(1,2)∂f∂y(x,y)∂f∂y(1,2)=2x=2=2y=4

So DF(1,2)=[ 2 4 ].

Since both partial derivatives ∂f∂x(x,y) and ∂f∂y(x,y) are CONTINUOUS functions, we know that f(x,y) is DIFFERENTIABLE. Therefore, Df(1,2) is the derivative of f, and the function has a tangent plane there.

To calculate the equation of the tangent plane, the only additional calculation is the value of f at (x,y)=(1,2), which is f(1,2)=12+22=5. The equation for the tangent plane is

z=f(1,2)+∂f∂x(1,2)(x−1)+∂f∂y(1,2)(y−2)=5+2(x−1)+4(y−2)

For a scalar-valued function of two variables such as f(x,y), the tangent plane is the linear approximation. We can write the linear approximation as

L(x,y)=5+2(x−1)+4(y−2).

Example 1'

If looked at the point (2,3), what changes?

Solution: The partial derivatives change, so the derivative becomes

∂f∂x(2,3)∂f∂y(2,3)Df(2,3)=4=6=[ 4 6 ].

The equation for the tangent plane, i.e., the linear approximation, becomes

z=L(x,y)=f(2,3)+∂f∂x(2,3)(x−2)+∂f∂y(2,3)(y−3)=13+4(x−2)+6(y−3)

Discussion

9.	मान ज्ञात करें 1-2+3-4+5-6÷7-8+9 please answer fast please
Answer» 1-2+3-4+5-6÷7-8+9Answer: Step-by-step explanation: 3.14

9.

मान ज्ञात करें 1-2+3-4+5-6÷7-8+9 please answer fast please

Answer»

1-2+3-4+5-6÷7-8+9Answer:

Step-by-step explanation:

3.14

Discussion

10.	The marked price of a book is rs.250and discount is 15% then find amount to be paid
Answer» Step-by-step explanation: The printed price of a book = Rs. 150 DISCOUNT = 15% = 15% of 150 \dfrac{15}{100}×150 100 15 ×150 = 22.5 \textsf{\large{The actual amount to pay = printed price of a book – discount}}The actual amount to pay = printed price of a book – discount = 150-22.5 = \bf{\BOXED{Rs. 127.50}} Rs.127.50 ∴ < U > The actual amount to be paid is Rs. 127.50

10.

The marked price of a book is rs.250and discount is 15% then find amount to be paid

Answer»

Step-by-step explanation:

The printed price of a book = Rs. 150

DISCOUNT = 15%

= 15% of 150

\dfrac{15}{100}×150

100

15

×150

= 22.5

\textsf{\large{The actual amount to pay = printed price of a book – discount}}The actual amount to pay = printed price of a book – discount

= 150-22.5

= \bf{\BOXED{Rs. 127.50}}

Rs.127.50

∴ < U > The actual amount to be paid is Rs. 127.50

Discussion

11.	8.The following is the distribution of 160workers according to the wages in a certainfactory :No. of workersWages more than(in)80009000160155100001379111000120005713000140002310115000160000Determine the values of all quartiles andinterpret the results.
Answer» ANSWER: the DAY BRO MAY be a GOOD day of the answer to the day bro

11.

8.The following is the distribution of 160workers according to the wages in a certainfactory :No. of workersWages more than(in)80009000160155100001379111000120005713000140002310115000160000Determine the values of all quartiles andinterpret the results.

Answer»

ANSWER:

the DAY BRO MAY be a GOOD day of the answer to the day bro

Discussion

12.	Calculate the compound interest on ₹ 2400 for 2 years at 5% per annum .
Answer» ANSWER: That is, the amount Rs. 2646 to be PAID at the end of 2 years on Rs. 2400 at 5% PER ANNUM compounded annually. So, the correct answer is “2646”. Step-by-step explanation: Hope it helps you

12.

Calculate the compound interest on ₹ 2400 for 2 years at 5% per annum .

Answer»

ANSWER:

That is, the amount Rs. 2646 to be PAID at the end of 2 years on Rs. 2400 at 5% PER ANNUM compounded annually. So, the correct answer is “2646”.

Step-by-step explanation:

Hope it helps you

Discussion

13.	BlumeActivity 17 (B) (3 marks) Date :Volume of a cone is 753.60 cm. The radius of itsbase is 12 cm then complete the following activityto find the height of the cone.mula) Volume of a cone... (Formula)ng the1x 3.14 x 12 x3x h.alue)753.60 x= h.x 12 x 12h=cm.
Answer» ANSWER: SORRY I don't KNOW... hshshsjs

13.

BlumeActivity 17 (B) (3 marks) Date :Volume of a cone is 753.60 cm. The radius of itsbase is 12 cm then complete the following activityto find the height of the cone.mula) Volume of a cone... (Formula)ng the1x 3.14 x 12 x3x h.alue)753.60 x= h.x 12 x 12h=cm.

Answer»

ANSWER:

SORRY I don't KNOW... hshshsjs

Discussion

14.	If a,b,c are in a.p. then show that 1/a ,1/b,1/c are also in a.p. ?
Answer» ANSWER: ifsysi5aotsjtaktajrsktstisurjratkstj Step-by-step EXPLANATION: rjrjaitsjadharhf

14.

If a,b,c are in a.p. then show that 1/a ,1/b,1/c are also in a.p. ?

Answer»

ANSWER:

ifsysi5aotsjtaktajrsktstisurjratkstj

Step-by-step EXPLANATION:

rjrjaitsjadharhf

Discussion

15.	(ब) यदिm,n प्रत्यक्ष विचरण में हों,औरकीजिये.m-154 हो तोn-7,यदि n-14 हो तोm का मान ज्ञात
Answer» ANSWER: i don't KNOW this LANGUAGE

15.

(ब) यदिm,n प्रत्यक्ष विचरण में हों,औरकीजिये.m-154 हो तोn-7,यदि n-14 हो तोm का मान ज्ञात

Answer»

ANSWER:

i don't KNOW this LANGUAGE

Discussion

16.	A% of b is equal to b% of a. (T/F)
Answer» ANSWER: FALSE is the RIGHT answer for this question thanks bro/sis please MARK as

16.

A% of b is equal to b% of a. (T/F)

Answer»

ANSWER:

FALSE is the RIGHT answer for this question

thanks bro/sis

please MARK as

Discussion

17.	లుG7వివUమలుకాయపై వృత్తాలలో 1 నుండి 7వరకు అంకెలను పూరించిఎటుకూడిన మొత్తము ఒకే సంఖ్య వస్తుంది. ఈవృత్తాలను పూరించి ఆ సంఖ్యను కనుక్కోండి.
Answer» ANSWER: i don't KNOW this LANGUAGE

17.

లుG7వివUమలుకాయపై వృత్తాలలో 1 నుండి 7వరకు అంకెలను పూరించిఎటుకూడిన మొత్తము ఒకే సంఖ్య వస్తుంది. ఈవృత్తాలను పూరించి ఆ సంఖ్యను కనుక్కోండి.

Answer»

ANSWER:

i don't KNOW this LANGUAGE

Discussion

18.	एक वस्तु का अंकित मूल्य ₹1200 है जिसके 12% सेवा कार्य लगदा है वस्तु ka vech मूल पता करो
Answer» ANSWER: Answer is 1056 Step-by-step explanation: 1200 * 12 /100 = 144 1200 - 144 = 1056

18.

एक वस्तु का अंकित मूल्य ₹1200 है जिसके 12% सेवा कार्य लगदा है वस्तु ka vech मूल पता करो

Answer»

ANSWER:

Answer is 1056

Step-by-step explanation:

1200 * 12 /100 = 144

1200 - 144 = 1056

Discussion

19.	Peter has Rs200 and Paul has Rs2120 When they are each given Rsx Paul has 5 times as much as Peter write Down an equation in x and solve it
Answer» Question : Peter has RS200 and Paul has Rs2120 When they are each given Rs "x" Paul has 5 times as much as Peter write Down an EQUATION in x and solve it. Answer : $\sf\purple{Given:}$ Peter has Rs . 200 Paul has Rs . 2120 $\sf\purple{To\:Find:}$ Value of x = ? Explanation : When given x RUPEES to both Paul has 5 times as much as peter has . Now peter has 200 + x rupees Now Paul has 2120 + x rupees Equation FORMED : $\longrightarrow\mathbb{5 (200 + x ) = 2120 + x}$ $\longrightarrow\mathbb{1000 + 5x = 2120 + x}$ $\longrightarrow\mathbb{5x - x = 2120 - 1000}$ $\longrightarrow\mathbb{4x = 1120 }$ $\longrightarrow\mathbb{x = 1120/4 }$ $\longrightarrow\mathbb\pink{x = 280 }$ Therefore 280 rupees were given to both of them . $\huge\sf\red{@MissOxford}$

19.

Peter has Rs200 and Paul has Rs2120 When they are each given Rsx Paul has 5 times as much as Peter write Down an equation in x and solve it

Answer»

Question :

Peter has RS200 and Paul has Rs2120 When they are each given Rs "x" Paul has 5 times as much as Peter write Down an EQUATION in x and solve it.

Answer :

$\sf\purple{Given:}$

Peter has Rs . 200

Paul has Rs . 2120

$\sf\purple{To\:Find:}$

Value of x = ?

Explanation :

When given x RUPEES to both Paul has 5 times as much as peter has .

Now peter has 200 + x rupees

Now Paul has 2120 + x rupees

Equation FORMED :

$\longrightarrow\mathbb{5 (200 + x ) = 2120 + x}$

$\longrightarrow\mathbb{1000 + 5x = 2120 + x}$

$\longrightarrow\mathbb{5x - x = 2120 - 1000}$

$\longrightarrow\mathbb{4x = 1120 }$

$\longrightarrow\mathbb{x = 1120/4 }$

$\longrightarrow\mathbb\pink{x = 280 }$

Therefore 280 rupees were given to both of them .

$\huge\sf\red{@MissOxford}$

Discussion

20.	7-2(x-3)=9pls tell me answer
Answer» Step-by-step explanation: 7-2×x-3=9 7-2x-3=9 4-3x=9 -x=9-4 -x=5 x=-5

20.

7-2(x-3)=9pls tell me answer

Answer»

Step-by-step explanation:

7-2×x-3=9

7-2x-3=9

4-3x=9

-x=9-4

-x=5

x=-5

Discussion

21.	-33/7+9 in fraction please solve fast
Answer» Answer: 30/7 Step-by-step EXPLANATION: MAKE DENOMINATOR EQUAL it BECOMES -33/7 and 63/7 add them we get -33+63/7 =30/7

21.

-33/7+9 in fraction please solve fast

Answer»

Answer:

30/7

Step-by-step EXPLANATION:

MAKE DENOMINATOR EQUAL

it BECOMES -33/7 and 63/7

add them

we get

-33+63/7

=30/7

Discussion

22.	JUMBLING WORDS1) RTUHTTruth2)OINSON3) HWETAWHEAT4) ATMANRDITAMARINO5) ACMLECAMLEG- సంఘంబడి పిల్లలు,ఎరడికెర, శెట్టూరు ఏరియా,
Answer» Step-by-step EXPLANATION: Truth Onions Wheat Tamarind Camel

22.

JUMBLING WORDS1) RTUHTTruth2)OINSON3) HWETAWHEAT4) ATMANRDITAMARINO5) ACMLECAMLEG- సంఘంబడి పిల్లలు,ఎరడికెర, శెట్టూరు ఏరియా,

Answer»

Step-by-step EXPLANATION:

Truth
Onions
Wheat
Tamarind
Camel

Discussion

23.	L-6cm and b=0.5 m what is the perimeter
Answer» ANSWER: PERIMETER = 2( L + B ) = 2( 6 + 0.5 ) = 2 × 6.5 = 13cm

23.

L-6cm and b=0.5 m what is the perimeter

Answer»

ANSWER:

PERIMETER = 2( L + B )

= 2( 6 + 0.5 )

= 2 × 6.5

= 13cm

Discussion

24.	Is letter H a horizontal and a vertical shape??
Answer» ANSWER: The LETTER H is a VERTICAL SHAPE

24.

Is letter H a horizontal and a vertical shape??

Answer»

ANSWER:

The LETTER H is a VERTICAL SHAPE

Discussion

25.	Kola lost 20% by selling a bicycle for 1536.what % shall he he gain of loss by selling it for 2000
Answer» 4% Kola will loss by SELLING it for ₹2000 Step-by-step explanation: GIVEN Selling PRICE = ₹1536 loss = 20% ___________________________ TO FIND What percent Kola will gain or loss by selling it for ₹2000 ___________________________ We know that, Cost Price = ( Selling Price × 100 ) / ( 100 - Loss Percent ) Cost Price = ( 1536 × 100 ) / ( 100 - 20 ) Cost Price = 153600 / 80 Cost Price = 1920 Cost Price = ₹1920 ___________________________ If Kola sell it for ₹2000 = 2000 - 1920 = 80 Kola will GET loss of ₹80 He will get loss We know that, Percent = ( Part VALUE / Total Value ) × 100 Percent = ( 80 / 2000 ) × 100 Percent = 0.04 × 100 Percent = 4 Percent = 4% 4% Kola will loss by selling it for ₹2000

25.

Kola lost 20% by selling a bicycle for 1536.what % shall he he gain of loss by selling it for 2000

Answer»

4% Kola will loss by SELLING it for ₹2000

Step-by-step explanation:

GIVEN

Selling PRICE = ₹1536

loss = 20%

___________________________

TO FIND

What percent Kola will gain or loss by selling it for ₹2000

___________________________

We know that,

Cost Price = ( Selling Price × 100 ) / ( 100 - Loss Percent )

Cost Price = ( 1536 × 100 ) / ( 100 - 20 )

Cost Price = 153600 / 80

Cost Price = 1920

Cost Price = ₹1920

___________________________

If Kola sell it for ₹2000

= 2000 - 1920

= 80

Kola will GET loss of ₹80

He will get loss

We know that,

Percent = ( Part VALUE / Total Value ) × 100

Percent = ( 80 / 2000 ) × 100

Percent = 0.04 × 100

Percent = 4

Percent = 4%

4% Kola will loss by selling it for ₹2000

Discussion

26.	3.If 3/4 = ?/12, then ? =
Answer» ANSWER: 9/12 Step-by-step explanation: 12 divided by 4 is 3 whatever U do to the denominator u have to do to the numerator so 3 times 3 is 9 so answer is ? = 9 hope it helps HAGD :) stay safe byeee

26.

3.If 3/4 = ?/12, then ? =

Answer»

ANSWER:

9/12

Step-by-step explanation:

12 divided by 4 is 3

whatever U do to the denominator u have to do to the numerator so 3 times 3 is 9 so answer is

? = 9

hope it helps

HAGD :) stay safe byeee

Discussion

27.	Activity 17 (A) (2 marks) Date :Complete the following activity to find the volumeof the cube whose side is 7.5 cm.Here, 1 =(Formula)Volume of the cube3(Substituting the=value)cm?
Answer» ANSWER: 122cm... is answer I THINK..

27.

Activity 17 (A) (2 marks) Date :Complete the following activity to find the volumeof the cube whose side is 7.5 cm.Here, 1 =(Formula)Volume of the cube3(Substituting the=value)cm?

Answer»

ANSWER:

122cm... is answer I THINK..

Discussion

28.	What is the coefficient of the variable in the expression 4 − 3x − 7 + 6? (3 points)
Answer» Answer: 3 is the coefficient of the VARIABLE in the expression 4 − 3X − 7 + 6 Step-by-step EXPLANATION:

28.

What is the coefficient of the variable in the expression 4 − 3x − 7 + 6? (3 points)

Answer»

Answer:

3 is the coefficient of the VARIABLE in the expression 4 − 3X − 7 + 6

Step-by-step EXPLANATION:

Discussion

29.	What is eighty divided by four
Answer» Answer: 20 Step-by-step EXPLANATION:

29.

What is eighty divided by four

Answer»

Answer:

20

Step-by-step EXPLANATION:

Discussion

30.	In a right angled triangle, the sides forming the right angle are 24 cm and 7 cm . Hence the length of the hypotenuse will be
Answer» Answer: 25 Step-by-step explanation: AB² (ADJ) + BC² (OPP) = AC² ( hyp let AC² be x⅔ 24²+7²= x² 24²=576 ; 7²=49 576+49=625 x²=625. (move the SQUARE to RIGHT hand side, it BECOMES root) x=√625 x=25. Therefore the hypotenuse or the other side is 25

30.

In a right angled triangle, the sides forming the right angle are 24 cm and 7 cm . Hence the length of the hypotenuse will be

Answer»

Answer:

25

Step-by-step explanation:

AB² (ADJ) + BC² (OPP) = AC² ( hyp

let AC² be x⅔

24²+7²= x²

24²=576 ; 7²=49

576+49=625

x²=625. (move the SQUARE to RIGHT hand side, it BECOMES root)

x=√625

x=25.

Therefore the hypotenuse or the other side is 25

Discussion

31.	7 power 2 n+1divided by 49=7power 3
Answer» ANSWER: ${7}^{(2n + 1)} \div 49 = \frac{7}{3} \\ \frac{ {7}^{2n + 1} }{49} = {7}^{3} \\ \frac{ {7}^{2n + 1} }{ {7}^{2} } = {7}^{3} \\ {7}^{2n + 1} = {7}^{3} \times {7}^{2} \\ {7}^{2n + 1} = {7}^{(3 + 2)} \\ {7}^{2n + 1} = {7}^{5} \\ 2n + 1 = 5 \\ 2n = 5 - 1 \\ 2n = 4 \\ n = \frac{4}{2} \\ \large{ \boxed{n = \underline{ \underline{ 2}}}} \\ \\ \large{ \underline{Note} : } \\ * \: \: \: \frac{ {a}^{m} }{ {a}^{n} } = {a}^{m - n} \\ * \: \: \: {a}^{m} \times {a}^{n} = {a}^{m + n} \\$

31.

7 power 2 n+1divided by 49=7power 3

Answer»

ANSWER:

${7}^{(2n + 1)} \div 49 = \frac{7}{3} \\ \frac{ {7}^{2n + 1} }{49} = {7}^{3} \\ \frac{ {7}^{2n + 1} }{ {7}^{2} } = {7}^{3} \\ {7}^{2n + 1} = {7}^{3} \times {7}^{2} \\ {7}^{2n + 1} = {7}^{(3 + 2)} \\ {7}^{2n + 1} = {7}^{5} \\ 2n + 1 = 5 \\ 2n = 5 - 1 \\ 2n = 4 \\ n = \frac{4}{2} \\ \large{ \boxed{n = \underline{ \underline{ 2}}}} \\ \\ \large{ \underline{Note} : } \\ * \: \: \: \frac{ {a}^{m} }{ {a}^{n} } = {a}^{m - n} \\ * \: \: \: {a}^{m} \times {a}^{n} = {a}^{m + n} \\$

Discussion

32.	ТИЪx-1 show if it is irrational number
Answer» ANSWER: sleep Step-by-step explanation: TOTEM Liam %*of DJ LOUD all our El

32.

ТИЪx-1 show if it is irrational number

Answer»

ANSWER:

sleep

Step-by-step explanation:

TOTEM Liam

%*of DJ LOUD all our El

Discussion

33.	For what the value of m the equation 3mx square=4(mx-1) will have equal Roots
Answer» EXPLANATION. Value of m the equation, ⇒ 3mx² = 4(mx - 1). As we know that, D = Discriminant b² - 4ac. D = 0 Roots are real and equal. ⇒ 3mx² = 4(mx - 1). ⇒ 3mx² = 4mx - 4. ⇒ 3mx² - 4mx + 4 = 0. ⇒ (-4M)² - 4(3m)(4) = 0. ⇒ 16m² - 48m = 0. ⇒ 16m(m - 3) = 0. ⇒ m = 0 and m = 3. MORE INFORMATION. Nature of the FACTORS of the QUADRATIC expression. (1) = Real and different, if b² - 4ac > 0. (2) = Rational an different, if b² - 4ac is a perfect square. (3) = Real and equal, if b² - 4ac = 0. (4) = If D < 0 Roots are imaginary and unequal or complex conjugate.

33.

For what the value of m the equation 3mx square=4(mx-1) will have equal Roots

Answer»

EXPLANATION.

Value of m the equation,

⇒ 3mx² = 4(mx - 1).

As we know that,

D = Discriminant b² - 4ac.

D = 0 Roots are real and equal.

⇒ 3mx² = 4(mx - 1).

⇒ 3mx² = 4mx - 4.

⇒ 3mx² - 4mx + 4 = 0.

⇒ (-4M)² - 4(3m)(4) = 0.

⇒ 16m² - 48m = 0.

⇒ 16m(m - 3) = 0.

⇒ m = 0 and m = 3.

MORE INFORMATION.

Nature of the FACTORS of the QUADRATIC expression.

(1) = Real and different, if b² - 4ac > 0.

(2) = Rational an different, if b² - 4ac is a perfect square.

(3) = Real and equal, if b² - 4ac = 0.

(4) = If D < 0 Roots are imaginary and unequal or complex conjugate.

Discussion

34.	What is the meaning of the expression (4 + 5) x 2?
Answer» Answer: MEANING if this expression is 4 + 5 = 9 9 * 2 = 18

34.

What is the meaning of the expression (4 + 5) x 2?

Answer»

Answer:

MEANING if this expression is

4 + 5 = 9

9 * 2 = 18

Discussion

35.	I want also explanation too of simplify
Answer» Answer: This is very normal QUESTION Step-by-step explanation: Funny questions KYU etana THANKS kah rhe HO yarrr

35.

I want also explanation too of simplify

Answer»

Answer:

This is very normal QUESTION

Step-by-step explanation:

Funny questions KYU etana THANKS kah rhe HO yarrr

Discussion

36.	Why is algebra so boring??
Answer» Answer: algebra is boring CAUSE you PREFER to LOOK at it in wrong VIEW

36.

Why is algebra so boring??

Answer»

Answer:

algebra is boring CAUSE you PREFER to LOOK at it in wrong VIEW

Discussion

37.	Mai loongi trutharey esa kuch nhi hota hai bada chota khel toh bas khel hota hai bro.
Answer» Step-by-step EXPLANATION: The sunrise starts at Assam in India . State true or FALSE

37.

Mai loongi trutharey esa kuch nhi hota hai bada chota khel toh bas khel hota hai bro.

Answer»

Step-by-step EXPLANATION:

The sunrise starts at Assam in India . State true or FALSE

Discussion

38.	find the value of m if the zero of the quadratic polynomial 6 x square - 13 x + m = 0 is inverse to each other
Answer» ANSWER: m= 42 Step-by-step EXPLANATION: SINCE 6 is zero 66-136+42= 0 hence m= 42

38.

find the value of m if the zero of the quadratic polynomial 6 x square - 13 x + m = 0 is inverse to each other

Answer»

ANSWER:

m= 42

Step-by-step EXPLANATION:

SINCE 6 is zero

6*6-13*6+42= 0

hence m= 42

Discussion

39.	Y*y²= what ??????????
Answer» ANSWER: y³ Step-by-step EXPLANATION: y × y² =y × y × y =y³ Hope that HELPS you...☺

39.

Y*y²= what ??????????

Answer»

ANSWER:

y³

Step-by-step EXPLANATION:

y × y²

=y × y × y

=y³

Hope that HELPS you...☺

Discussion

40.	Find the quotient when -6×² + 3× + 8 is divided by × - 2?
Answer» QUOTIENT is -6 + 3 HOPE it HELPS (•‿•)

40.

Find the quotient when -6×² + 3× + 8 is divided by × - 2?

Answer»

QUOTIENT is -6 + 3 HOPE it HELPS (•‿•)

Discussion

41.	Please solve this and answer asap ....I would report spammers ...thank you
Answer» Step-by-step EXPLANATION: HOPE it will HELP you. ..

41.

Please solve this and answer asap ....I would report spammers ...thank you

Answer»

Step-by-step EXPLANATION:

HOPE it will HELP you. ..

Discussion

42.	From a right circular cylinder with height10 cm and radius of base 6 cm, a rightcircular cone of the same height and baseis removed. Find the volume of theremaining solid.
Answer» ANSWER: height=10 cm radius=6cm volume of CYLINDER = πr^2h = 3.146^210 =1884p

42.

From a right circular cylinder with height10 cm and radius of base 6 cm, a rightcircular cone of the same height and baseis removed. Find the volume of theremaining solid.

Answer»

ANSWER:

height=10 cm

radius=6cm

volume of CYLINDER = πr^2h

= 3.14*6^2*10

=1884p

Discussion

43.	Solve the question10 step by step
Answer» Answer: -5/4 × 8/5 - 16/15 × 5/4 + 22/15 - 2 - 16/15 × 5/4 + 22/15 - 2 - 4/3 + 22/15 Calculate the SUM or the difference: ANSWER: – 28/15 Step-by-step EXPLANATION: #HOPE you have satisfied with this answer.

43.

Solve the question10 step by step

Answer»

Answer:

-5/4 × 8/5 - 16/15 × 5/4 + 22/15

- 2 - 16/15 × 5/4 + 22/15

- 2 - 4/3 + 22/15

Calculate the SUM or the difference:

ANSWER:

– 28/15

Step-by-step EXPLANATION:

#HOPE you have satisfied with this answer.

Discussion

44.	Area of A BCD = /180x (180–100) x (180–100) x (180–160)V180 x 80 x 80 x 20 m²= 4800 m2
Answer» Answer: six DIGG ricki Rick Rick Rick Rick Rick Rick Rick Rick SOON Rick Rick Rick Rick Rick Step-by-step explanation: Ricoh ruff ruff ruff ruff ruff ruff ruff rp Rick Rick Rick GG Ron TT ERIN gov DD

44.

Area of A BCD = /180x (180–100) x (180–100) x (180–160)V180 x 80 x 80 x 20 m²= 4800 m2

Answer»

Answer:

six DIGG ricki Rick Rick Rick Rick Rick Rick Rick Rick SOON Rick Rick Rick Rick Rick

Step-by-step explanation:

Ricoh ruff ruff ruff ruff ruff ruff ruff rp Rick Rick Rick GG Ron TT ERIN gov DD

Discussion

45.	8000 का घनमूल ज्ञात करो।
Answer» ANSWER: kskshgjssjskshksjhkdskhdjkydysjjtatahjatjta

45.

8000 का घनमूल ज्ञात करो।

Answer»

ANSWER:

kskshgjssjskshksjhkdskhdjkydysjjtatahjatjta

Discussion

46.	7 एक्स माइनस 42 का गुणनखंड पता करें
Answer» ANSWER: 7(x-6) STEP BY STEP EXPLANATION: 7x-42 7(x-6)

46.

7 एक्स माइनस 42 का गुणनखंड पता करें

Answer»

ANSWER:

7(x-6)

STEP BY STEP EXPLANATION:

7x-42

7(x-6)

Discussion

47.	Solve the following pair of linear equations by the substitution method X + Y is equals to 14
Answer» ANSWER: 4 Step-by-step EXPLANATION: i THINK the answer should be FOUR

47.

Solve the following pair of linear equations by the substitution method X + Y is equals to 14

Answer»

ANSWER:

4

Step-by-step EXPLANATION:

i THINK the answer should be FOUR

Discussion

48.	Fluorine-18 is a radioactive isotope of fluorine that is used in medical imaging scans. It has ahalf-life of approximately 110 minutes. If a patient has a medical imaging scan using an injection of fluorine-18 at 9 am, at what time will there be less than 25% of the radioactive isotope in her body?a) 10 amb) 12 pmc) 1 pmd) 11 am
Answer» ANSWER: c ) 1 PM is the right OPTION

48.

Fluorine-18 is a radioactive isotope of fluorine that is used in medical imaging scans. It has ahalf-life of approximately 110 minutes. If a patient has a medical imaging scan using an injection of fluorine-18 at 9 am, at what time will there be less than 25% of the radioactive isotope in her body?a) 10 amb) 12 pmc) 1 pmd) 11 am

Answer»

ANSWER:

c ) 1 PM is the right OPTION

Discussion

49.	Plz help me plz solve it and plz give explanation
Answer» ANSWER: THE RATIO IS 3 : 2 Step-by-step explanation: Let the cost of birthday gift be X and the cost of cake be Y According to the given condition birthday gift COSTS 9/15 of birthday gift and cake together X = 9/15 × ( X + Y ) 15X = 9X + 9Y 15X - 9X = 9Y 6X = 9Y X/Y = 9/6 X/Y = 3/2 X:Y= 3:2 *THE* *RATIO* OF *COST* OF *GIFT* TO *THE* *COST* OF *CAKE* IS 3 : 2

49.

Plz help me plz solve it and plz give explanation

Answer»

ANSWER:

THE RATIO IS

3 : 2

Step-by-step explanation:

Let the cost of birthday gift be X

and the cost of cake be Y

According to the given condition

birthday gift COSTS 9/15 of birthday gift and cake together

X = 9/15 × ( X + Y )

15X = 9X + 9Y

15X - 9X = 9Y

6X = 9Y

X/Y = 9/6

X/Y = 3/2

X:Y= 3:2

THE RATIO OF COST OF GIFT TO THE COST OF CAKE IS 3 : 2

Discussion

50.	Q.6 It is given that the ratio of number of clothes inCarton P and carton Q is 4:5 and the ratio of theclothes in carton R to S is 3: 4. If the number ofclothes in carton S is 4 less than the number ofclothes in Q and the average number of clothes in allthe cartons together is 87, then what is the number ofclothes in carton P?(a) 120 (b)88 (c)60 (d)80 (e)None of these
Answer» ANSWER: C is the CORRECT option hope it is HELPFUL to you

50.

Q.6 It is given that the ratio of number of clothes inCarton P and carton Q is 4:5 and the ratio of theclothes in carton R to S is 3: 4. If the number ofclothes in carton S is 4 less than the number ofclothes in Q and the average number of clothes in allthe cartons together is 87, then what is the number ofclothes in carton P?(a) 120 (b)88 (c)60 (d)80 (e)None of these

Answer»

ANSWER:

C is the CORRECT option

hope it is HELPFUL to you

Discussion

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GIVEN

___________________________

TO FIND

___________________________

Cost Price = ₹1920

___________________________

Kola will GET loss of ₹80

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