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drek231 [11]
4 years ago
5

Select the proper placement for parentheses to speed up the addition for the expression 2 + 9 + 8 + 1 A. (1 + 2) + (9 + 8) B. (8

+ 9) + (2 + 1) C. (9 + 2) + (8 + 1) D. (8 + 2) + (9 + 1)
Mathematics
2 answers:
sleet_krkn [62]4 years ago
8 0
It's D because
(8+2) = 10
(9+1) = 10
Hope this helped. (:
irina [24]4 years ago
3 0
The answer is D. Because it is easier to add 9 and 2 and also 8 and 1.
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Answer:

17 ft

Step-by-step explanation:

Use pythagorean theorem:

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The rectangular storage unit is split into 2 right triangles since it is 17 feet diagonally. So, 17 feet is the hypotenuse of the right triangle.

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Answer:

The answer is $22.80

Step-by-step explanation:

<h3><u>Given</u>:</h3>

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<u>-TheUnknownScientist</u><u> 72</u>

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