Which expression makes the equation true?

1.) Y^20 = () ^2

A.) y^4

B.) y^5

C.) y^10

D.) y^12

2.) 100m^20 = () ^2

A.) 10m^20

B.) 10m^10

C.) 50m^10

D.) 50m^20

Question

Mathematics

Ruth Lawson

29 September, 22:41

Which expression makes the equation true?

1.) Y^20 = () ^2

A.) y^4

B.) y^5

C.) y^10

D.) y^12

2.) 100m^20 = () ^2

A.) 10m^20

B.) 10m^10

C.) 50m^10

D.) 50m^20

+1

Answers (1)

Know the Answer?

Nataly Graves · Answer 1

1. C.

The rule of powers is that when a parenthesis is raised to a power, you multiply the two numbers. Since it is being raised to the second power, it needs to have a 10 in the parenthesis. That would make 20.

2. B

Firstly 10^2 = 100, so we know that the number must be 10. That leaves us with just A and B. Then we know the same thing from the previous equation, that they need to be multiplied together.

Which expression makes the equation true?1.) Y^20 = () ^2A.) y^4B.) y^5C.) y^10D.) y^122.) 100m^20 = () ^2A.) 10m^20B.) 10m^10C.) 50m^10D.) 50m^20

Which expression makes the equation true?

1.) Y^20 = () ^2

A.) y^4

B.) y^5

C.) y^10

D.) y^12

2.) 100m^20 = () ^2

A.) 10m^20

B.) 10m^10

C.) 50m^10

D.) 50m^20