Plz !

find the volume of this right triangular prism.

a. 90cm^3
b. 60cm^3
c. 120cm^3
d. 150cm^3

B. 60cm^3

Step-by-step explanation:

The volume of a right triangular prism is

V = BH  where B is the area of the triangle and H is height

B = 1/2 bh  where b =5 and h =8

B = 1/2 *40 = 20

V = (20) * 3

V = 60 cm^3

We need to be careful to do the area of the triangle first

1/8 3/16 3/4

step-by-step explanation:

you put them as all the same denominator and multiply

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)