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elena55 [62]
4 years ago
9

Evulate a^2 - b^2 if a=4 and b= -2

Mathematics
1 answer:
Helen [10]4 years ago
8 0

Answer:

20

Step-by-step explanation:

4^2 = 16

-2^2 =-4

16 -(-4) =20

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beks73 [17]

Answer:

dont know srry

Step-by-step explanation:

5 0
3 years ago
What is the perimeter of the octagon? 11. 2 cm 14. 1 cm 15. 2 cm 20. 8 cm.
sergij07 [2.7K]

Answer:

I think it would be 8

Step-by-step explanation:

8 0
3 years ago
Solve the equation. -5/4n =40
lina2011 [118]
I think the answer is a
8 0
4 years ago
The prism shown has a volume of 798 cm3.
a_sh-v [17]

Answer:

10.5 cm

Step-by-step explanation:

Volume = base area × height

798 = (9.5 × 8) × height

height = 798/76

height = 10.5

4 0
3 years ago
Michael is using a rotating
Olegator [25]

The diameter will be 8 feet because the measurement is after completing a complete circle. Radius will be 4 feet since diameter is twice radius.

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\sf\pi  r^{2}

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\sf \: =  3.14 \times 16

\boxed{ \tt \: area = 50.26ft^{2} }

<em>Thus, The area of lawn watered is 50.26ft²...~</em>

5 0
2 years ago
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