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4 years ago

Please Answer Fast

Mathematics

1 answer:

Vlad [161]4 years ago

4 0

Area = <span>π*r^2
= </span><span>π * 9^2
=81</span><span>π square feet. - B is your answer</span>

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Can someone please help me :)

Bas_tet [7]

Answer:

2 $\sqrt{13}$

Step-by-step explanation:

12x12 = 144

14x14 = 196

144 + ? = 196

196 - 144 = 52

$\sqrt{52}$ = 2 $\sqrt{13}$

3 0

3 years ago

Prove that the two circles shown below are similar. (10 points) Circle B Has A Center Of (-1, 5) And A Radius Of 4. Circle D Has

nexus9112 [7]

All circles are similar shapes.

However, we can prove that these circles are similar by finding their radius-circumference ratios.

<h2>Circle B</h2>

Radius:

4 units

Circumference:

$C=2\pi r\\C=2\pi (4)\\C=8\pi$

Radius/circumference ratio:

$\dfrac{4}{8\pi}\\\\\dfrac{1}{2\pi}$

<h2>Circle D</h2>

Radius:

2 units

Circumference:

$C=2\pi r\\C=2\pi (2)\\C=4\pi$

Radius/circumference ratio:

$\dfrac{2}{4\pi}\\\\\dfrac{1}{2\pi}$

The radius/circumference ratio for both the circles is $\dfrac{1}{2\pi}$ , thus making the two circles similar.

8 0

2 years ago

Which polynomial expression represents a sum of cubes? (6 – s)(s2 + 6s + 36) (6 + s)(s2 – 6s – 36) (6 + s)(s2 – 6s + 36) (6 + s)

Nadusha1986 [10]

Answer:

Option 3 is correct that is $(6+s)(s^2-6s+36)$

Step-by-step explanation:

We have general formula for sum of cube which is

$a^3+b^3=(a+b)(a^2+b^2-ab)$

Here, we have a=s and b=6

on substituting the values in the formula we will get

$6^3+s^3=(6+s)(s^2+6^2-6s)$

After simplification we will get

$6^3+s^3=(6+s)(s^2+36-6s)$

After rearranging the terms we will get

$6^3+s^3=(6+s)(s^2-6s+36)$ which exactly matches option 3 in the given options.

Therefore, option 3 is correct that is $(6+s)(s^2-6s+36)$

4 0

4 years ago

Read 2 more answers

Find three consecutive odd integers such that the sum of the first and the third is 34,

nataly862011 [7]

Answer:

15,17,19

Step-by-step explanation:

assume the first number is X which means the third number will be X+4 so X+ X+4=34

solve for X which will be 15

thus the numbers are 15,17 and 19

6 0

3 years ago

Find the value of x.

LUCKY_DIMON [66]

The answer would be 28

3 0

3 years ago

Read 2 more answers