Answer:
-12
Step-by-step explanation:
Let b = -1 and a = -3
The average rate of change =
f(b) = f(-1) = 3(-1)^2 - 5 = 3 - 5 = -2
f(a) = f(-3) = 3(-3)^2 - 5 =27 - 5 = 22
f(b) - f(a) = -2 - 22 = -24
b - a = -1 + 3 = 2
= -24/2 = -12
Tim has a box of 15 markers. He gives 3 markers each to 4 friends. What expression can show the number of markers Tim has left?
2 answers:
Answer:
Step-by-step explanation:
We are given that
Number of markers in a box =15
Total number of friends=4
Number of markers are given to each friend=3
We have to find the expression that can show the number of markers Tim has left.
To find the number of markers Tim has left we will subtract the number of markers given to 4 friends from total number of markers in a box
Number of markers are given to 4 friend=
Number of markers Tim has left=
Hence, the expression which cans how the number of markers Tim has left
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Answer:
Step-by-step explanation:
We are given this function for the height (h) after t seconds:
Seconds is t and we want to find the height after 1.5 seconds. Plug 1.5 in for t.
Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.
Solve the exponent first.
- (1.5)²= 1.5*1.5=2.25
Multiply.
Add.
This is already rounded to the nearest tenth, so it is the answer.
After 1.5 seconds, the basketball is at a height of 7.5 feet.