For the first one, you go from -4 on the number line and move 2 spaces to the right to get -2. For the second one, you start at -4 again and then you move to the left 2 spaces since your subtracting.

Step-by-step explanation:

-viridiancat4, an 8th grader :)

4 0

3 years ago

Jillian wants to find the surface area of a pyramid. the base is a square with sides that are 4 inches long the other faces are

Natali5045456 [20]

Part a:-
The base of each triangle is 4 inches long.
Their height is 3/2 * 4 = 6 inches.

b
The combined area of the triangular faces = 4 * 1/2 * 4 * 6 = 48 sq ins

c
Surface area of the pyramid = 48 + area of base = 48 + 16 = 64 sq ins.

7 0

3 years ago

If angle DAB is 30 degrees, angle ABD is 60 degrees, and line segment BD has a length of 30, what is the length of side a?

Natali [406]

Answer:

The length of side a is 30

Step-by-step explanation:

because the side of an angle is the side it's pointing at which is BD. BD = a = 30

5 0

3 years ago

If 8 poles are 3m apart,what is the distance in meters between the first and the eight pole​

If 8 poles are 3m apart,what is the distance in meters between the first and the eight pole