Find the geometric mean of 5 and 125.

Answers

Answer 1

Answer: $geometric \ mean \ of \ two \ numbers \ a \ and \ b \ is :\ √(a \cdot b) \n \na=5 , \ b = 125 \n \n √(5 \cdot 125)=√(625)=√(25 \cdot 25)=25$

Answer 2

Answer: $the\ geometric\ mean= √(5\cdot125) = √(625) = √(25^2)= 25$

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About how many times larger is 8.75 x 10-2 than 4.35 x 10-4?

Answers

i think 8.75 x 10-2 is bigger than 4.35 x 10-4 because 8.75 is bigger than 4.35! hope i could get.

Complete the comparison: 3 + 7 > ?
A. 8+2
B. 10- 2
C. 7+3
D.9+4

Answers

3+7>10-2
This is because this simplifies to;
10>8
Answer is B. 3+7>10-2

The Answer is D! Because > means that the number on the right hand side is more than the left just think of it as an arrow! —>

Polygon A is similar to polygon B the sides of polygon A are three times larger then the corresponding sides of polygon B the perimeter of polygon A is 144 what is the perimeter of polygon B ?

Answers

Answer:

48 units

Step-by-step explanation:

Perimeter is the sum of the side lengths

If polygon A has perimeter

P = a+b+c+d for example

Then polygon B has perimeter of

P' = 1/3a+1/3b+1/3+1/3d = 1/3P as each side is 3 times smaller than the corresponding side

Since P = 144

P' = 1/3P = 1/3*144 = 48 units

We can write a ratio comparing the sides of both polygons.

A:B = 3:1

Since we know that 144 is the perimeter for polygon A, we can substitute it.

144:B = 3:1

~Simplify

144 = 3B

Divide 3 to both sides

48 = B

Therefore, the perimeter of B is 48 units.

Best of Luck!

Can't figure this one out super confused please help!

Answers

i think the answer is C.

What is the half of 15

Answers

Half of 15 is

15/2 = 7.5

half means divide by 215/2= 7.5

7 is 70% of what number

Answers

seven is 70% of the number ten 7/10 = 70%

$x-searched\ number\n\n70\%x=7\n\n0.7x=7\ \ \ \ \ \ |:0.7\n\nx=10\n\n7\ is\ 70%\ of\ 10$

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