What is the volume of the triangular prism to the nearest whole unit
360
240
1440
720

V = 360 ft^3

Step-by-step explanation:

V = b*h

where b is the area of the triangular base and h is the height

The base is a triangle  so we take 1/2 the base times the height

b = 1/2 15*3

  = 1/2 (45) = 22.5

V = 22.5 * 16

V = 360 ft^3

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)