-(7) to the power of 4 Which expression shows the power correctly written in expanded
notation?
-7 x -7 x -7 x -7
-7 x 7 x 7 x 7
-4 x -4 x -4 x -4 x -4 x -4 x -4
-4 x 4 x 4 x 4 x 4 x 4 x 4

the first one is correct

Step-by-step explanation:

this is the same way as writing 7 to the power of four, but all of the sevens are negative in your case

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi