Aball is thrown upward from the top of a building. the function below shows the height of the ball in relation to sea level, f(t), in feet, at different times, t, in seconds:

f(t) = −16t2 + 48t + 100

the average rate of change of f(t) from t = 3 seconds to t = 5 seconds is per second.

answer: the average rate of change of f(t) from t = 3 seconds to t = 5 seconds is -40 feet per second.

step-by-step explanation: xx

given: a ball is thrown upward from the top of a building. the function below shows the height of the ball in relation to sea level, f(t), in feet, at different times, t, in seconds:

now,

now, the   average rate of change of f(t) from t = 2 to t = 6 is given by : -

therefore, the average rate of change of f(t) from t = 3 seconds to t = 5 seconds is -40 feet per second.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!