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3 years ago

12

(2n^3+20n^2+n)/10n^2

1 answer:

gizmo_the_mogwai [7]3 years ago

3 0

The simplified form of this polynomial is (n(20n + 1))/5

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Given that the measurement is in centimeters, find the area of the circle to the nearest tenth. (Use 3.14 for π)

kvv77 [185]

Answer:

Option D) 254.3 cm2

Step-by-step explanation:

we know that

The area of a circle is equal to

$A=\pi r^{2}$

we have

$r=9\ cm$

substitute

$A=(3.14)(9)^{2}=254.3\ cm^2$

7 0

4 years ago

Please only answer if u know will mark brainliest 25 POINTS Evaluate the following expression when x = 6 and y = 2:

andreev551 [17]

Answer:

The answer is 5.5

Step-by-step explanation:

6 x 6 = 36

2x2x2 = 8

36 + 8 = 44

2 + 6 = 8

44/8 = 5.5

Therefore, the answer to this problem is 5.5

<u>I hope I helped! ^-^</u>

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2 years ago

When x = 4, y = 1<br> x^2 + 3xy – 7y^2

densk [106]

Answer:

21

Step-by-step explanation:

i worked out the problem

4 0

3 years ago

One positive integer is 6 less than another. The

nlexa [21]

Answer:

$11, 5$

Step-by-step explanation:

$x=y-6$

$xy=55$

Put x as y-6 in the second equation.

$(y-6)y=55$

$y^2-6y=55$

$y^2-6y-55=0$

Factor.

$\left(y+5\right)\left(y-11\right)=0$

$\left(y+5\right)=0$

$y=-5$

It has to be a positive integer.

$y-11=0$

$y=11$

Substitute y as 11.

$x=y-6$

$x=11-6$

$x=5$

6 0

3 years ago

Read 2 more answers

Find the center and radius of the circle with equation (x+3)^2+(3+ 1)^2= 9. Then graph the circle.

Ymorist [56]

Answer:

See graph

$(x +3)^{2}$ + $(y + 1)^{2}$ = 9

(-3 , -1) is the center.

$\sqrt{9}$ = 3 = radius

Step-by-step explanation:

$(x - h)^{2} + (y - k)^{2} = r^{2}$

center (h,k)

radius = r

7 0

3 years ago