332354 + Interview Questions in Secondary School in Math

1.	If 15 oranges horse rupees 70 what is the cost of 39 oranges and unitary method
Answer» ANSWER: For 15 oranges=70 FOR 1 = 70÷15 therefore for 1 ORANGE = ×39

1.

If 15 oranges horse rupees 70 what is the cost of 39 oranges and unitary method

Answer»

ANSWER:

For 15 oranges=70

FOR 1 = 70÷15

therefore for 1 ORANGE = ×39

Discussion

2.	Chana ale vs 6-3) -Cho-tole sheria)
Answer» Step-by-step EXPLANATION: ..................9

2.

Chana ale vs 6-3) -Cho-tole sheria)

Answer»

Step-by-step EXPLANATION:

..................9

Discussion

3.	Right-angled triangle with measurements AB = 8 cm, BC = 6 cm and the includedangle as 90°
Answer» Answer: sorry please don't ASK INCOMPLETE QUESTIONS

3.

Right-angled triangle with measurements AB = 8 cm, BC = 6 cm and the includedangle as 90°

Answer»

Answer:

sorry please don't ASK INCOMPLETE QUESTIONS

Discussion

4.	Rationalize the denominator and simplify: 3/4+root 2
Answer» Answer: 9/16 ANWER BRO Step-by-step EXPLANATION: *MARK* me as *brainlist* bro**

4.

Rationalize the denominator and simplify: 3/4+root 2

Answer»

Answer:

9/16 ANWER BRO

Step-by-step EXPLANATION:

MARK me as brainlist bro

Discussion

5.	Proove the root 2 and root 3 is an irrational number
Answer» Step-by-step explanation: from the EQUATION rhs=a^2+b^2/2ab is a RATIONAL and also ROOT3 also rational but our CONTRADICTION facts that root3 is IRRATIONAL

5.

Proove the root 2 and root 3 is an irrational number

Answer»

Step-by-step explanation:

from the EQUATION rhs=a^2+b^2/2ab is a RATIONAL and also ROOT3 also rational but our CONTRADICTION facts that root3 is IRRATIONAL

Discussion

6.	Find the orthogonal trajectory of x² + cy² = 1
Answer» $Given \:x^{2} + cy^{2} = 1$ $\implies cy^{2} = 1 - x^{2}$ $\implies c = \frac{1 - x^{2}}{y^{2}}$ /* Do the DIFFERENTIATION both SIDES , we GET */ $\implies 0 = \frac{y^{2} ( -2x) - (1-x^{2})\times 2y\frac{dy}{dx}}{y^{4}}$ $\implies 0 = -2xy^{2} + 2y(x^{2}-1)\frac{dy}{dx}$ $\implies 2xy^{2} = 2y(x^{2}-1)\frac{dy}{dx}$ $\implies \frac{xy}{x^{2}-1} = \frac{dy}{dx}$ $Differential \:equation \:of\\Orthogonal \: trajectory$ $-\frac{dx}{dy} = \frac{xy}{x^{2}-1}$ $\implies - \int \frac{x^{2}-1}{x} = \int y dy$ $\implies - \int \Big( x - \frac{1}{x}\Big) dx = \int y dy$ $\implies -x + log x = \frac{y^{2}}{2} + c$ $\green { This \:is \:\:equation\:of \: Orthogonal}\\\green { trajectory \:of \: given \: family\:of \:curves}$ •••♪

6.

Find the orthogonal trajectory of x² + cy² = 1

Answer»

$Given \:x^{2} + cy^{2} = 1$

$\implies cy^{2} = 1 - x^{2}$

$\implies c = \frac{1 - x^{2}}{y^{2}}$

/* Do the DIFFERENTIATION both SIDES , we GET */

$\implies 0 = \frac{y^{2} ( -2x) - (1-x^{2})\times 2y\frac{dy}{dx}}{y^{4}}$

$\implies 0 = -2xy^{2} + 2y(x^{2}-1)\frac{dy}{dx}$

$\implies 2xy^{2} = 2y(x^{2}-1)\frac{dy}{dx}$

$\implies \frac{xy}{x^{2}-1} = \frac{dy}{dx}$

$Differential \:equation \:of\\Orthogonal \: trajectory$

$-\frac{dx}{dy} = \frac{xy}{x^{2}-1}$

$\implies - \int \frac{x^{2}-1}{x} = \int y dy$

$\implies - \int \Big( x - \frac{1}{x}\Big) dx = \int y dy$

$\implies -x + log x = \frac{y^{2}}{2} + c$

$\green { This \:is \:\:equation\:of \: Orthogonal}\\\green { trajectory \:of \: given \: family\:of \:curves}$

•••♪

Discussion

7.	Answer me this plzfind the median fast
Answer» Step-by-step EXPLANATION: PLZ..REFER the above ATTACHMENT.

7.

Answer me this plzfind the median fast

Answer»

Step-by-step EXPLANATION:

PLZ..REFER the above ATTACHMENT.

Discussion

8.	formulas of these lesson linear equation in two variables Quadratic equation Arithmetic progression statistics
Answer» ANSWER: QUADRATIC EQUATION ax^2+ bx+c arithmetic a2-a1

8.

formulas of these lesson linear equation in two variables Quadratic equation Arithmetic progression statistics

Answer»

ANSWER:

QUADRATIC EQUATION ax^2+ bx+c

arithmetic a2-a1

Discussion

9.	What is the ratio of the heights of a triangle and a parallelogram if they have equal areas and are on equal bases?
Answer» ANSWER: RATIO of HEIGHTS will be 1:2

9.

What is the ratio of the heights of a triangle and a parallelogram if they have equal areas and are on equal bases?

Answer»

ANSWER:

RATIO of HEIGHTS will be 1:2

Discussion

10.	Find mean of first 5 perfect square
Answer» ANSWER: HOPE it HELPS....... XD

10.

Find mean of first 5 perfect square

Answer»

ANSWER:

HOPE it HELPS....... XD

Discussion

11.	Write the following as rational numbers in their standard forms:35%
Answer» Answer: 7/20 is the standard form of 35%. Step-by-step explanation: PLEASE make me as BRAINILIST.

11.

Write the following as rational numbers in their standard forms:35%

Answer»

Answer:

7/20 is the standard form of 35%.

Step-by-step explanation:

PLEASE make me as BRAINILIST.

Discussion

12.	Find the area of an isosceles right triangle whose equal sides are 15 cm each
Answer» ANSWER: HI friend area of triangle=1/2BH = 1/2 15*15=225/2=112.5cm

12.

Find the area of an isosceles right triangle whose equal sides are 15 cm each

Answer»

ANSWER:

HI friend

area of triangle=1/2*BH

= 1/2 *15*15=225/2=112.5cm

Discussion

13.	The circumference of a circle exceeds the diameter by 16.8cm find the circumference of the circle
Answer» ANSWER: CIRCUMFERENCE 2πr=2 *3.14.8.4

13.

The circumference of a circle exceeds the diameter by 16.8cm find the circumference of the circle

Answer»

ANSWER:

CIRCUMFERENCE 2πr=2 *3.14.8.4

Discussion

14.	3. An iron block is of the volume 182 m. If its length and breadth are 8 m and 6.5 m respectively.
Answer» ANSWER: So what I have to do here.... XD

14.

3. An iron block is of the volume 182 m. If its length and breadth are 8 m and 6.5 m respectively.

Answer»

ANSWER:

So what I have to do here.... XD

Discussion

15.	Findthe centroid of triangleABC ifA(2,3) B (4,5) c) (0,0)
Answer» Answer: LET A (x1, y1), B (x2, y2) and C (x3, y3) are the three vertices of the ∆ABC . Let D be the midpoint of SIDE BC. Since, the COORDINATES of B (x2, y2) and C (x3, y3), the coordinate of the point D are (x2+x32, y2+y32). Let G(x, y) be the centroid of the triangle ABC. Then, from the GEOMETRY, G is on the MEDIAN AD and it divides AD in the ratio 2 : 1, that is AG : GD = 2 : 1. Therefore, x = {2⋅(x2+x3)2+1⋅x12+1} = x1+x2+x33 y = {2⋅(y2+y3)2+1⋅y12+1} = y1+y2+y33 Therefore, the coordinate of the G are (x1+x2+x33, y1+y2+y33) Hence, the centroid of a triangle whose vertices are (x1, y1), (x2, y2) and (x3, y3) has the coordinates (x1+x2+x33, y1+y2+y33). Note: The centroid of a triangle divides each median in the ratio 2 : 1 (vertex to base).

15.

Findthe centroid of triangleABC ifA(2,3) B (4,5) c) (0,0)

Answer»

Answer:

LET A (x1, y1), B (x2, y2) and C (x3, y3) are the three vertices of the ∆ABC .

Let D be the midpoint of SIDE BC.

Since, the COORDINATES of B (x2, y2) and C (x3, y3), the coordinate of the point D are (x2+x32, y2+y32).

Let G(x, y) be the centroid of the triangle ABC.

Then, from the GEOMETRY, G is on the MEDIAN AD and it divides AD in the ratio 2 : 1, that is AG : GD = 2 : 1.

Therefore, x = {2⋅(x2+x3)2+1⋅x12+1} = x1+x2+x33

y = {2⋅(y2+y3)2+1⋅y12+1} = y1+y2+y33

Therefore, the coordinate of the G are (x1+x2+x33, y1+y2+y33)

Hence, the centroid of a triangle whose vertices are (x1, y1), (x2, y2) and (x3, y3) has the coordinates (x1+x2+x33, y1+y2+y33).

Note: The centroid of a triangle divides each median in the ratio 2 : 1 (vertex to base).

Discussion

16.	the mean of 15 numbers is 8.5 and means of 25 numbers is 11.5. Determine the mean of 40 numbers taken together
Answer» Answer: We know that:- MEAN of n observations = { sum of n observations } / n From here, Sum of n observations = mean × n Here, ACCORDING to given sum of FRIST 15 number = 8.5 × 15 = 127.5 & Sum of next 25 = 11.5 × 25 = 287.5 Here, Sum of Frist 40 = 127.5 + 287.5 = 415 Now, mean (Frist 40 observations) = 415 / 40 => 10.375 => 10.375 Answer Hope it HELPS.. :-) Step-by-step explanation: THANK U AND MEK AS BRAINLIST

16.

the mean of 15 numbers is 8.5 and means of 25 numbers is 11.5. Determine the mean of 40 numbers taken together

Answer»

Answer:

We know that:-

MEAN of n observations = { sum of n observations } / n

From here,

Sum of n observations = mean × n

Here,

ACCORDING to given

sum of FRIST 15 number = 8.5 × 15 = 127.5

&

Sum of next 25 = 11.5 × 25 = 287.5

Here,

Sum of Frist 40 = 127.5 + 287.5 = 415

Now,

mean (Frist 40 observations) = 415 / 40 => 10.375

=> 10.375 Answer

Hope it HELPS.. :-)

Step-by-step explanation:

THANK U AND MEK AS BRAINLIST

Discussion

17.	Solution please fast
Answer» LOG 3^x=log5^x+2 xlog3=(x+2)log5 xlog3=xlog5+2log5 log 25=x(log3-log5) ×=log25/log(3/5)

17.

Solution please fast

Answer»

LOG 3^x=log5^x+2

xlog3=(x+2)log5

xlog3=xlog5+2log5

log 25=x(log3-log5)

×=log25/log(3/5)

Discussion

18.	Tan thita = 2√h2_ab/a+b
Answer» ANSWER: what WANT to FIND or what should be PROVED? ,,,?????

18.

Tan thita = 2√h2_ab/a+b

Answer»

ANSWER:

what WANT to FIND or what should be PROVED? ,,,?????

Discussion

19.	Arrange and subtract the trinomial:1+4m+9m^2 from 4-m-5m^2
Answer» Answer: 1+2m+9m^2from4-m-5m^2 4-m-5m^2-(1+2m+9m^2) 4-m-5m^2-1-2m-9m^2

19.

Arrange and subtract the trinomial:1+4m+9m^2 from 4-m-5m^2

Answer»

Answer:

1+2m+9m^2from4-m-5m^2

4-m-5m^2-(1+2m+9m^2)

4-m-5m^2-1-2m-9m^2

Discussion

20.	Triangleswer the following questions :4 x 4 = 16The first termof two A.P.s are equal and the ratios of their commondifferences is 1 : 2. If the 7th termof first A.P. and 21th term ofsecond A.P. are 23 and 125 respectively. Find two A.P.S.PPT-010[Turn over
Answer» Answer: hzjzjzhzjjzkzk Step-by-step EXPLANATION: nsnsjxnjxjxjjdjdjdjdhhdhhhdh CV hd HDH CV hsj in hi such Garrett ITCH nthfrrffffdffhxjcjfjf jj fjcjcjfjfkfkvkckfkgkflgkgkckglvkkvklglhhlglvkgkg OK ofofig g ok g ok g ok gogpgog ok LOOK ok govogogogogoggogogog po po ifhsjsjjxhxjxjxjjdjdjxjjxjxnjxbdhdbxbdhhdjdjjdjsjdjjdjsjjdjdjdjjsjsjsjjs

20.

Triangleswer the following questions :4 x 4 = 16The first termof two A.P.s are equal and the ratios of their commondifferences is 1 : 2. If the 7th termof first A.P. and 21th term ofsecond A.P. are 23 and 125 respectively. Find two A.P.S.PPT-010[Turn over

Answer»

Answer:

hzjzjzhzjjzkzk

Step-by-step EXPLANATION:

nsnsjxnjxjxjjdjdjdjdhhdhhhdh CV hd HDH CV hsj in hi such Garrett ITCH nthfrrffffdffhxjcjfjf jj fjcjcjfjfkfkvkckfkgkflgkgkckglvkkvklglhhlglvkgkg OK ofofig g ok g ok g ok gogpgog ok LOOK ok govogogogogoggogogog po po ifhsjsjjxhxjxjxjjdjdjxjjxjxnjxbdhdbxbdhhdjdjjdjsjdjjdjsjjdjdjdjjsjsjsjjs

Discussion

21.	What is p(p(p(1.2))).plz answer. No spam.I have my exam today.Hope you will support.
Answer» HI, Purchasing power parity (PPP) is an economic THEORY that allows the comparison of the purchasing power of various world currencies to one another. It is a theoretical exchange rate that allows you to buy the same amount of goods and SERVICES in every country. Hope it will helps u!!! THANKYOU ☜☆☞

21.

What is p(p(p(1.2))).plz answer. No spam.I have my exam today.Hope you will support.

Answer»

HI,

Purchasing power parity (PPP) is an economic THEORY that allows the comparison of the purchasing power of various world currencies to one another. It is a theoretical exchange rate that allows you to buy the same amount of goods and SERVICES in every country.

Hope it will helps u!!!

THANKYOU ☜☆☞

Discussion

22.	1. In the adjoining figure, PS \|\| QR, PQ = SR. Prove that QT = RU.
Answer» ANSWER: the IMAGE is not MUCH CLEARER

22.

1. In the adjoining figure, PS || QR, PQ = SR. Prove that QT = RU.

Answer»

ANSWER:

the IMAGE is not MUCH CLEARER

Discussion

23.	Find the Equation of a live cutting offIntercepts from y-cries of the tingentat angle to the reanis is 3
Answer» Answer: it's shhhahbbzb. JI jaj JSU HZ ajM

23.

Find the Equation of a live cutting offIntercepts from y-cries of the tingentat angle to the reanis is 3

Answer»

Answer:

it's shhhahbbzb. JI jaj JSU HZ ajM

Discussion

24.	Algebra all together formulas std 10
Answer» ANSWER: I don't KNOW SORRY PLS FORGIVE me

24.

Algebra all together formulas std 10

Answer»

ANSWER:

I don't KNOW SORRY PLS FORGIVE me

Discussion

25.	The circumference of a circle exceed by 16.8cm find the circumference of the circle
Answer» Step-by-step EXPLANATION: CIRCUMFERENCE of CIRCLE EQUAL to 2πr 222/716.8=105.6

25.

The circumference of a circle exceed by 16.8cm find the circumference of the circle

Answer»

Step-by-step EXPLANATION:

CIRCUMFERENCE of CIRCLE EQUAL to 2πr

2*22/7*16.8=105.6

Discussion

26.	Plot the point A(5, 5). Using a line tool, create with a length of 4 units from point A. Turn on the trace feature at point B, and move point B around point A, keeping the length of fixed. Capture the image, and paste or insert it in the space below.
Answer» Plotting a point A and TRACING a point B at 4 UNITS from A results in a CIRCLE. ▪The locus of a point at equal distance from a fixed point is a circle. ▪Point A is (5,5) and length of AB is 4 units This implies that the radius of circle is 4 units. ▪The point B can be swirled AROUND A keeping the distance AB constant. ▪The resulting figure is a circle. ▪This circle is plotted and attached below.

26.

Plot the point A(5, 5). Using a line tool, create with a length of 4 units from point A. Turn on the trace feature at point B, and move point B around point A, keeping the length of fixed. Capture the image, and paste or insert it in the space below.

Answer»

Plotting a point A and TRACING a point B at 4 UNITS from A results in a CIRCLE.

▪The locus of a point at equal distance from a fixed point is a circle.

▪Point A is (5,5) and length of AB is 4 units

This implies that the radius of circle is 4 units.

▪The point B can be swirled AROUND A keeping the distance AB constant.

▪The resulting figure is a circle.

▪This circle is plotted and attached below.

Discussion

27.	Arrange and subtract the trinomial: 1+4m+9m^2 from 4-m-5m^2
Answer» Step-by-step EXPLANATION: ...................2

27.

Arrange and subtract the trinomial: 1+4m+9m^2 from 4-m-5m^2

Answer»

Step-by-step EXPLANATION:

...................2

Discussion

28.	To supplyA Social Welfaree Association decidesAssociation decidesI drinking water for the flood affected peop athe dreokoon water is filled in a water harwhich is in the shape of a cyliohemispherical ead as shown in fig theWhole length of the tank is 4.2 Metore doodiameter of base of the cylinder and two hemi--spheres are each 1.2m If they distributedrinking water to 60 people in a Container.I each is in the shape of cylinder radius 21cmand beight som find the quantity of waterleft in the tanker after distribution inlitre.
Answer»

Discussion

29.	If sinθ =cosθ ,then find the value of cot^2θ +tanθsecθ +1.
Answer»

Discussion

30.	A Social Welfare Association decides to supplydrinking water for the flood affected peoplethe drinking water is filled in a water tankerwhich is in the shape of a cylinder withhemispherical ead as shown in fig theWhole length of the tank is 4.2 Metore anddiameter of base of the cylinder and two bemi--spheres are each 1-2m . If they distributedrinking water to 60 people in a containereach is in the shape of cylinder radius 21 cmand beight som find the quantity of waterleft in the tanker after distribution inlitre.
Answer» VOL of tank= vol of cylinder + vol of 2 hemisphere convert this answer into cm3 vol of GLASS= vol of cylinder× 60 tAke vol of tank as eq 1 and vol of glass eq2 subtract 1 & 2 divide the answer by 1000 then answer will be 141.42 l

30.

A Social Welfare Association decides to supplydrinking water for the flood affected peoplethe drinking water is filled in a water tankerwhich is in the shape of a cylinder withhemispherical ead as shown in fig theWhole length of the tank is 4.2 Metore anddiameter of base of the cylinder and two bemi--spheres are each 1-2m . If they distributedrinking water to 60 people in a containereach is in the shape of cylinder radius 21 cmand beight som find the quantity of waterleft in the tanker after distribution inlitre.

Answer»

VOL of tank= vol of cylinder + vol of 2 hemisphere

convert this answer into cm3

vol of GLASS= vol of cylinder× 60

tAke vol of tank as eq 1 and vol of glass eq2

subtract 1 & 2

divide the answer by 1000

then answer will be 141.42 l

Discussion

31.	Find the area of the segments shaded in figure.If CD=CB = 21 cm, AD=AB= 28 cmand AC is the diameter of the circle.
Answer» I have no TIME now I will GIVE in the EVENING

31.

Find the area of the segments shaded in figure.If CD=CB = 21 cm, AD=AB= 28 cmand AC is the diameter of the circle.

Answer»

I have no TIME now I will GIVE in the EVENING

Discussion

32.	Write as fraction in lowest term20%
Answer» ANSWER: 20% = 20/100 = 1/5 this is your answer

32.

Write as fraction in lowest term20%

Answer»

ANSWER:

20% = 20/100

= 1/5

this is your answer

Discussion

33.	divider identities of Standard 20 student and satvin respectively find the volume of cylinder(π=3.14)
Answer» ANSWER: PLEASE WRITE PROPERLY

33.

divider identities of Standard 20 student and satvin respectively find the volume of cylinder(π=3.14)

Answer»

ANSWER:

PLEASE WRITE PROPERLY

Discussion

34.	L. C. M (55,2000)I am question
Answer» ANSWER: LCM of 55,2000 is 29000 Step-by-step EXPLANATION:

34.

L. C. M (55,2000)I am question

Answer»

ANSWER:

LCM of 55,2000 is 29000

Step-by-step EXPLANATION:

Discussion

35.	Find the value of (999) 2
Answer» ANSWER: VALUE of 992 =992×992 984064

35.

Find the value of (999) 2

Answer»

ANSWER:

VALUE of 992

=992×992

984064

Discussion

36.	Where did Jerome finally find the toothbrush?
Answer» ANSWER: he finally find tooth BRUSH in boots because TAKEN out all things and KEPT all things one by one by SHAKING the objects.

36.

Where did Jerome finally find the toothbrush?

Answer»

ANSWER:

he finally find tooth BRUSH in boots because TAKEN out all things and KEPT all things one by one by SHAKING the objects.

Discussion

37.	Two supplementary angles differ by 80 degree find the measure of each angle
Answer» Answer: let the first angle be x. and the SECOND angle be y. x+y=180°》》》》[eq.1] x-y=80》》》》》[eq.2] USING ELIMINATION METHOD...., 2x=260 x=130° and..., y=180-130 y=50° therefore., x=130° and y=50° hope it helps pls mark as BRAINLIEST

37.

Two supplementary angles differ by 80 degree find the measure of each angle

Answer»

Answer:

let the first angle be x.

and the SECOND angle be y.

x+y=180°》》》》[eq.1]

x-y=80》》》》》[eq.2]

USING ELIMINATION METHOD....,

2x=260

x=130°

and...,

y=180-130

y=50°

therefore.,

x=130° and y=50°

hope it helps

pls mark as BRAINLIEST

Discussion

38.	Mr Saxena deposits 2,000 everymonth for 36 months in a bank andreceives 1,07,520 at the end of36 months. Find the rate of simpleinterest paid by the bank on therecurring deposit.[4]Find the mode of the following
Answer» ANSWER: r=32percentage gshshsusjsbshsjsjsjsjsnnsjsjs shssjusjsjssjsb

38.

Mr Saxena deposits 2,000 everymonth for 36 months in a bank andreceives 1,07,520 at the end of36 months. Find the rate of simpleinterest paid by the bank on therecurring deposit.[4]Find the mode of the following

Answer»

ANSWER:

r=32percentage

gshshsusjsbshsjsjsjsjsnnsjsjs

shssjusjsjssjsb

Discussion

39.	Find the area of a circle whose circumference is 52.8 cm
Answer» $\huge\mathbb{↓SOLUTION↓}$ Circumference of CIRCLE = 2πr 52.8 = 2πr πr = 52.8/2 πr = 26.4 r = 26.4×7/22 r = 8.4cm Area of circle = πr² 22/7 ×8.4×8.4 221.76cm² ★Hope it HELPS you★

39.

Find the area of a circle whose circumference is 52.8 cm

Answer»

$\huge\mathbb{↓SOLUTION↓}$

Circumference of CIRCLE = 2πr

52.8 = 2πr

πr = 52.8/2

πr = 26.4

r = 26.4×7/22

r = 8.4cm

Area of circle = πr²

22/7 ×8.4×8.4

221.76cm²

★Hope it HELPS you★

Discussion

40.	In a ∆ ABC , angle A =45°,angle b=70°. name the shortest side and find angle c
Answer» ANSWER: THEREFORE BC is the SHORTEST SIDE

40.

In a ∆ ABC , angle A =45°,angle b=70°. name the shortest side and find angle c

Answer»

ANSWER:

THEREFORE BC is the SHORTEST SIDE

Discussion

41.	Find the value of 'm' for which:5^m-5^-3=5^5
Answer» ANSWER: Your QUESTION is WRONG... This WOULD be LIKE this :- 5^m*5^-3=5^5 So this is the answer ....

41.

Find the value of 'm' for which:5^m-5^-3=5^5

Answer»

ANSWER:

Your QUESTION is WRONG...

This WOULD be LIKE this :- 5^m*5^-3=5^5

So this is the answer ....

Discussion

42.	Do the questions in the attached picture. Please do fast please........this is the question If the polynomial f(x)=x^3+8x^2+ax+b is exactly divisible by x^2+1.Then find the value of a and b. Answer fast, it's urgent.....
Answer» Step-by-step EXPLANATION: PLZ..REFER the above ATTACHMENT.

42.

Do the questions in the attached picture. Please do fast please........this is the question If the polynomial f(x)=x^3+8x^2+ax+b is exactly divisible by x^2+1.Then find the value of a and b. Answer fast, it's urgent.....

Answer»

Step-by-step EXPLANATION:

PLZ..REFER the above ATTACHMENT.

Discussion

43.	HELP HELP HELP ASAP ASAP!!!!!!!Jody enters a 12 km race. She wants to finish the race in one hour and twenty minutes. She starts off jogging at a speed of 7 km/h. After 30 minutes, she realizes that she needs to increase her speed to finish the race in her desired time. For the remaining time, what speed she must run at to finish the race in the exactly one hour and twenty minutes????????
Answer» Answer: She needs to RUN 1 km in every 10 MINUTES Step-by-step explanation: 30 minutes COMPLETED 7 KM 12 KM - 7 KM = 5 KM Bal Time : 50 minutes 50 KM/ 5KM = 10 minutes per KM

43.

HELP HELP HELP ASAP ASAP!!!!!!!Jody enters a 12 km race. She wants to finish the race in one hour and twenty minutes. She starts off jogging at a speed of 7 km/h. After 30 minutes, she realizes that she needs to increase her speed to finish the race in her desired time. For the remaining time, what speed she must run at to finish the race in the exactly one hour and twenty minutes????????

Answer»

Answer:

She needs to RUN 1 km in every 10 MINUTES

Step-by-step explanation:

30 minutes COMPLETED 7 KM

12 KM - 7 KM = 5 KM

Bal Time : 50 minutes

50 KM/ 5KM = 10 minutes per KM

Discussion

44.	Model questions paper for 2020
Answer» ANSWER: ....................

44.

Model questions paper for 2020

Answer»

ANSWER:

....................

Discussion

45.	Jody enters a 12 km race. She wants to finish the race in one hour and twenty minutes. She starts off jogging at a speed of 7 km/h. After 30 minutes, she realizes that she needs to increase her speed to finish the race in her desired time. For the remaining time, what speed she must run at to finish the race in the exactly one hour and twenty minutes
Answer» $Total \: distance \:of \:the \:race (d) = 12 \:km$ $Time \:to \: finish \: the \: race(T)\\ = <klux>1</klux> \:hour \: 20 \: minutes$ CASE 1: $Speed \: of \: Jody = 7 \: kmph$ $Time(t_{1}) = 30 \: minutes = \frac{1}{<klux>2</klux>} \: hour$ $Distance \: travelled (d_{1}) = speed \times time \\= 7 \times \frac{1}{2} \\= 3.5 \: km$ Case 2: $Remaining \:distance = d - d_{1} \\= 12 \:km - 3.5 \:km \\= 8.5 \:km$ $Time = T - t_{1}\\ = 1\:hour \: 20 \: minutes - 30 \: minutes\\= 50 \: minutes \\= \frac{50}{60} \: hours \\= \frac{5}{6} \:hours$ $Speed \:to \:finish \:the \:race = \frac{distance}{time } \\= \frac{8.5}{\frac{5}{6}}\\= 8.5 \times \frac{6}{5} \\= 10.2 \: kmph$ THEREFORE., $\red {Speed \:to \:finish \:the \:race} \green { = 10.2 \: kmph }$ •••♪

45.

Jody enters a 12 km race. She wants to finish the race in one hour and twenty minutes. She starts off jogging at a speed of 7 km/h. After 30 minutes, she realizes that she needs to increase her speed to finish the race in her desired time. For the remaining time, what speed she must run at to finish the race in the exactly one hour and twenty minutes

Answer»

$Total \: distance \:of \:the \:race (d) = 12 \:km$

$Time \:to \: finish \: the \: race(T)\\ = <klux>1</klux> \:hour \: 20 \: minutes$

CASE 1:

$Speed \: of \: Jody = 7 \: kmph$

$Time(t_{1}) = 30 \: minutes = \frac{1}{<klux>2</klux>} \: hour$

$Distance \: travelled (d_{1}) = speed \times time \\= 7 \times \frac{1}{2} \\= 3.5 \: km$

Case 2:

$Remaining \:distance = d - d_{1} \\= 12 \:km - 3.5 \:km \\= 8.5 \:km$

$Time = T - t_{1}\\ = 1\:hour \: 20 \: minutes - 30 \: minutes\\= 50 \: minutes \\= \frac{50}{60} \: hours \\= \frac{5}{6} \:hours$

$Speed \:to \:finish \:the \:race = \frac{distance}{time } \\= \frac{8.5}{\frac{5}{6}}\\= 8.5 \times \frac{6}{5} \\= 10.2 \: kmph$

THEREFORE.,

$\red {Speed \:to \:finish \:the \:race} \green { = 10.2 \: kmph }$

•••♪

Discussion

46.	Find the area and circumference of a circle whose diameter is 35 cm
Answer» ANSWER: DIAMETER : 35cm Radius : d/2 => 35/2 Area of CIRCLE : ¶r² = 22/7×35/2×35/2 = 962.5cm²

46.

Find the area and circumference of a circle whose diameter is 35 cm

Answer»

ANSWER:

DIAMETER : 35cm

Radius : d/2 => 35/2

Area of CIRCLE : ¶r²

= 22/7×35/2×35/2

= 962.5cm²

Discussion

47.	5 raise to the power m multiply by 5 raise to the power 4 what is m?
Answer» ANSWER: (5^m)×(5^4) we can't COMMENT on this question ... I THINK SOMETHING is missing

47.

5 raise to the power m multiply by 5 raise to the power 4 what is m?

Answer»

ANSWER:

(5^m)×(5^4)

we can't COMMENT on this question ...

I THINK SOMETHING is missing

Discussion

48.	Algebra formulas all lessons std 10
Answer» ANSWER: general term FORMULA is An = a + (n - 1)d

48.

Algebra formulas all lessons std 10

Answer»

ANSWER:

general term FORMULA is An = a + (n - 1)d

Discussion

49.	If 5tan theta is 12 then find the value of 5sectheta +12cot theta /13sin theta + 5 cosec theta
Answer» Answer: given 5tan○= 12 tan○=12/5. (where 12 is OPP. and 5 is adj.) therfore using py. th. HYP. =13 sec○=13/5. (sec○=1/cos○) cot○=5/12. (cot○=1/tan○) sin ○= 12/13 cosec○=13/12 substituting these VALUES...., 13+5/144+60/12 18/17...........answer hope it helps pls mark as brainliest

49.

If 5tan theta is 12 then find the value of 5sectheta +12cot theta /13sin theta + 5 cosec theta

Answer»

Answer:

given

5tan○= 12

tan○=12/5. (where 12 is OPP. and 5 is adj.)

therfore using py. th. HYP. =13

sec○=13/5. (sec○=1/cos○)

cot○=5/12. (cot○=1/tan○)

sin ○= 12/13

cosec○=13/12

substituting these VALUES....,

13+5/144+60/12

18/17...........answer

hope it helps

pls mark as brainliest

Discussion

50.	Find xif AB = ACBC is not parallel to DE
Answer» ANSWER: PLEASE give the RIGHT question Step-by-step EXPLANATION: the figure is not given

50.

Find xif AB = ACBC is not parallel to DE

Answer»

ANSWER:

PLEASE give the RIGHT question

Step-by-step EXPLANATION:

the figure is not given

Discussion

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