15. The graph below shows the relationship between velocity and time for a car. Acceleration is defined as
the change in velocity with respect to time. What is the acceleration of the car in meters per
second every
second?
9
8
7
a.
b.
len
Velocity
(meters per second)
4
2
1
3
C.
d.
الا انها
o 1 2 3 4 5 6 7 8 9
Time (seconds)

21

step-by-step explanation:

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)

your answer would be b