Answer:
x=3 and x=-5
Step-by-step explanation:
To find the x intercepts set y =0 and solve for x
0 = x^2+2x-15
Factor
What two numbers multiply to -15 and add to 2
5*-3 = -15
5+-3 =2
0 = (x+5) (x-3)
Using the zero product property
x+5=0 x-3 =0
x=-5 x=3
Answer:
Step-by-step explanation:
How many students are in the group? 7
The first option is correct. See an explanation below.
velocity=distance/time
31.1m/s=70/t
t=70/31.1
t=2.25secs
acceleration=velocity/time
a=31.1/2.25
a=13.82ms-²
therefore the constance deceleration=13.82ms-²
Answer:
Step-by-step explanation:
No because there could simply be more older drivers on the road.
