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alexgriva [62]
3 years ago
10

A solution of the equation x^2/4=9 is

Mathematics
1 answer:
abruzzese [7]3 years ago
5 0

Answer:

x = ±6

Step-by-step explanation:

x^2/4=9

Multiply by 4 on each side

x^2/4 *4=9*4

x^2 = 36

Take the square root of each side

sqrt(x^2) = ±sqrt(36)

x = ±6

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A circle has an area of 256 square inches. If the radius of
RSB [31]

Answer:

Option C (4096π in²)

Step-by-step explanation:

Area of the circle = 256π in²

We know that Area=\pi r^{2} , where r = radius of the circle

So,

256\pi  = \pi r^{2}

Cancelling π from both the sides,

=> r^{2} = 256

=> r = \sqrt{256} = 16

The radius of the circle = 16 in.

When the radius is multiplied with 4 , new radius = 16×4 = 64 in.

New Area = \pi (64)^{2} =4096\pi \: in^{2}

6 0
3 years ago
Multiply.
Vedmedyk [2.9K]

Answer:

Hello, There! i Noticed that your Question is 4.62 x 106 I'm Suggesting you mean 4.2 x 10 to the 6th power.

4,620,000 Is the Correct Answer My Friend! <3

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Hope this helps!

3 0
2 years ago
Work out (5.32 x 10^-7): (2.5 x 10^-5)<br>Give your answer in standard form​
Mrrafil [7]

Answer:

1.33×10^-6

Step-by-step explanation:

5.32 x 10^-7= 5.32×10^(-5-2)= 5.32×10^-2×10^(-5)

=0.0532×10^-5

(0.0532×10^-5) (2.5 x 10^-5)

0.0532×2.5 × 10^-5

0.133×10^-5= 1.33×10^-1 ×10^-5

1.33×10^-6

8 0
2 years ago
Please Help! Solve the equation for x.
SOVA2 [1]

Answer:

A

Step-by-step explanation:

Given

\frac{1}{3} x - 8 = - 12 ( multiply through by 3 to clear the fraction )

x - 24 = - 36 ( add 24 to both sides )

x = - 12 → A

6 0
3 years ago
If ABCD is a parallelogram then what is the measure of &lt; A - &lt;C​
iragen [17]

Answer:

The answer is 0.

4 0
3 years ago
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