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Vika [28.1K]
2 years ago
6

Gretchen computed the geometric mean of two numbers. One of the

Mathematics
1 answer:
alina1380 [7]2 years ago
6 0

9514 1404 393

Answer:

  7

Step-by-step explanation:

When the mean of two numbers is the same as one of the numbers, then the other number also has that same value. This is true for any kind of mean:

arithmetic, geometric, harmonic.

The other number would be 7.

__

The geometric mean (m) of a and b is ...

  m = √(ab)

We have ...

  7 = √(7b)

  49 = 7b . . . . . square both sides

  7 = b . . . . . . . .divide by 7

a = b = m = 7 in this case.

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Solve –5√ x = –15. <br><br><br><br> A. x = –7<br> B. x = –9<br> C. x = 7<br> D. x = 9
Pie
-5√x = -15
   -5       -5
   √x = 3
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The answer is D.
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3 years ago
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marishachu [46]

Answer:

m∠5 = 44°; m∠7 = 44°

Step-by-step explanation:

Angle 4 and 1 are supplementary (they make up a line) and their sum is equal to 180 degrees.

Subtracting the measure of angle 4 from 180 degrees gives the measure of angle 1. (180 - 136 = 44).

So Angle 1's measure is 44 degrees.

According to the Corresponding Angle Postulate, Angle 1 and Angle 5 are congruent. Therefore, m∠5 = 44°

According to the Vertical Angles Postulate (if two angles are vertical, they are congruent), ∠5 ≅ ∠7, meaning that m∠5 = m∠7.

So m∠7 = 44°

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2 years ago
What is the period of the function f(x) shown in the graph? Enter your answer in the box.
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Answer:

Step-by-step explanation:

π

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