Find the surface area

73.461 yd^2

Step-by-step explanation:

1.

Find the area of the circle.

Using A=πr^2

A = π x 5^2

A = 78.539

2.

Find the area of the triangle.

A=

A =

A = 152

3.

Subtract the area of the circle from the area of the triangle.

152 - 78.539 = 73.461 yd^2

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4