Answer:
39.
Step-by-step explanation:
We subtract f(1) which is the value of f(x) when x = 1 from f(3), then we divide by 3 - 1.
It is [(f3) - f(1]) / (3 - 1), so
Average rate of change = (3(3)^3 + 1) - (3(1)^3 + 1) / (3 - 1)
= (82 - 4) / 2
= 78 / 2
= 39.
Answer:
a rectangle
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
divide 20 by 4
Answer:
$320
Step-by-step explanation:
First, add up all of the money she expects to spend:
120 + 45 + 65 + 60
= 290
Then, add 30 to this, since she wants to have $30 left:
290 + 30
= 320
So, she should bring $320
Answer:400
Step-by-step explanation:
25% multiplied by 4 would be 100%. So 100 times 4 is 400. Which means which means 100 is 25% of 400.