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ra1l [238]
3 years ago
5

What is an efficient way to compute 47^2–37^2 without using raw calculations?

Mathematics
1 answer:
e-lub [12.9K]3 years ago
6 0

Answer:

(47+37)(47-37)

Step-by-step explanation:

47^2-37^2 is a difference of two squares. a^2-b^2 = (a+b)(a-b) so this expression can be factored to (47+37)(47-37) = (84)(10) = 840

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Step-by-step explanation:

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3 years ago
At an auditorium, 3 1/2 sections are filled with people watching a play. Exactly 3/5 of the people watching the play are parents
worty [1.4K]

Answer:

Fraction[Total number of sections filled filled with parents] = 2¹/₁₀ section

Step-by-step explanation:

Given:

Total number of sections filled = 3¹/₂ = 7 / 2 sections

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Find:

Fraction[Total number of sections filled filled with parents]

Computation:

Fraction[Total number of sections filled filled with parents] = Total number of sections filled x Number of fraction parents watching play

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5 0
3 years ago
11. |6- 15| - |5(-4)|= ?<br> A.-29<br> B. -11<br> C. 1<br> D. 11<br> E. 29
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Answer:

B

Step-by-step explanation:

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3 years ago
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3 years ago
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Step-by-step explanation:

You can refer to the photo I attached

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