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erastova [34]
2 years ago
10

Evaluate if a=4&b= 7 10 + (b − a) • 5 ​

Mathematics
1 answer:
Margarita [4]2 years ago
6 0
ANSWER= 25



a= 4 b=7

10+(7-4)•5

subtract 7-4= 3

10+3•5

multiply 3•5=15

10+15

add them and your answer is 25

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============================================

Explanation:

Naturally I start with x as that letter precedes y in the alphabet; however, it's easier to start with y because it is a leg of this triangle. We will then use the value of y to find x later.

For any 45-45-90 triangle, the two legs are the same length. So that's why we're able to quickly see that y = sqrt(5)

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The rule I used is sqrt(a)*sqrt(b) = sqrt(a*b)

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An alternate path is to use the pythagorean theorem to find x

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3 0
3 years ago
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To which subsets of real numbers does the following number belong? square root of 30
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In order to determine which subset it belongs, we must rewrite

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