(2+5x)-2=18
2+5x-2=18
5x=18
x=18/5= 3.6
<span>First we define Charlene's the average time, which is (8.4 + 8.6 + 8.3 + 8.5 + 8.7 + 8.5)/6 = 8.5. Normal time is 8.5/1.1 = 7.7. Charlene is faster than normal.</span>
Answer:
-35
Step-by-step explanation:
5(4)(-5) + -2(4)(-5) + (-5)²
= -100 + 40 + 25
= -35
Answer:
Eliminating the parameter, the equation is 
Step-by-step explanation:
We are given the following parametric equations:


We want to eliminate the parameter t. From the first equation:


Replacing in the second equation:


Eliminating the parameter, the equation is 