Once again i dont understand math

1/4

Step-by-step explanation:

First,simplify the exponent in the parentheses:

4^-2 x (-1)^0 x 4^1

4^-2 x 1 x 4^1

Then simplify the rest:

4^-2 x 1 x 4^1

1/16 x 1 x 4

Then multiply from left to right:

1/16 x 1 x 4

1/16 x 4

1/4

(-1)^0:A number that is raised to the power of 0 will always be 1.

i dont know i just need points

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.