A motor powers a model car so that after starting from rest, the car travels s inches in t seconds,
where s = 16t\t. Which of the following gives the
average speed of the car, in inches per second, over
the first t seconds after it starts?

B) 16√t

Average speed of the car =16√t inches per second

Step-by-step explanation:

A) 4√t

B) 16√t

C) 16 / √t

D) 16t

Speed = distance / time

Distance = 16t√t

Time = t

Substitute the value of distance and time into the formula

Speed = distance / time

Speed = 16t√t / t

= 16√t

Therefore, speed = 16√t

Average speed of the car =16√t inches per second

Ans B

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

ιт ιѕ $222.95

step-by-step explanation:

αℓℓ уσυ gσт тσ ∂σ ιѕ fιgυяє συт ωнαт 30% σf $318.50 ιѕ $95.55

тнєи ѕυвтяα¢т ιт fяσм $318.50-$95.55=$222.95

нσρє ι ¢συℓ∂ нєℓρ уσυ συ