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2 years ago

Work out the value of (√7)²

Mathematics

2 answers:

Mumz [18]2 years ago

7 0

Answer:

6.96 (ROUNDED ANSWER)

Step-by-step explanation:

SQUARE ROOT OF 4 = 2.64

2.64 ²=6.96

FrozenT [24]2 years ago

4 0

The answer is 7 because the square cancels out the square root

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If f(x) = -2x^2 + x–5, what is f(3)?

yan [13]

Answer:

-20

Step-by-step explanation:

Replace X by 3

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3 years ago

How do you find the radius of a circle with a circumference of 12pi

sergejj [24]

Answer:

Step-by-step explanation:

The circumference of a circle is $2\pir$ $\pi r$ , so $12\pi=2\pi r\\12=2r\\r=6$ . We can use this because the area of a circle is $\pi r^2$ . Thus, $\pi*6^2=36\pi$ .

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3 years ago

Triangle- interior angle<br> Please help !

sp2606 [1]

Answer:

x = 25

<B = 120 degrees

<C = 30 degrees

Step-by-step explanation:

Total angle measure of a triangle - 180 degrees

Add all the angles together to find the value of x

30 + 4x + 20 + x + 5 = 180

55 + 5x = 180

55 - 55 + 5x = 180 - 55

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x = 25

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<B = 100 + 20

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4 years ago

Help i cant figure this out:(

stealth61 [152]

Answer:

6-2=4

31/5 x 8 = 248/40

15/8 x 5 = 75/40

248-75=173

4 13/40

answers in order

6-2=4

6 1/5 - 1 7/8 = 4 13/40

Hope this helps

Step-by-step explanation:

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3 years ago

Find the greatest common factor of <br>21<br><br>

castortr0y [4]

Answer:

to find a GCF you need 2 numbers. You only have one here

Step-by-step explanation:

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3 years ago

Read 2 more answers

Work out the value of (√7)²​

Work out the value of (√7)²