Answer:
2x
Step-by-step explanation:
x/1 is same as x
x + x/1 = x + x = 2x
Answer: 2x
Step-by-step explanation:
f(-5)=-5(-5)²+4
f(-5)=5(25)+4
f(-5)=125+4
f(-5)=129
To get one hour you multiply 30 by 2 so you multiply 20 by two also
this gives you 40km per hour
Answer:
f(x) = ($23/week)(x)
Step-by-step explanation:
Hello!
Let's determine the unit rate. I'd suggest finding the cost per week, rather than the weeks covered by a certain amount of money.
Then:
$115
-------- = $23 per week
Then the amount spent as a function of the # of weeks would be:
f(x) = ($23/week)(x)
5 wk
Slope = y2 -y1 / x2 - x1
= 8-9 / 11-14
= -1 / -3
= 1/3