First put your 52 over 100 in a fraction form since it’s to the 100th place. Then You need to divide by 4 on top and bottom. Resulting in the final fraction of 13/25
Answer:
2.05hrs
Step-by-step explanation:
Given he total cost c(x) of hiring a dump truck and an operator is described by the function c(x)=300+31x-3.90x^2 , where x is the number of hours worked. If c(x)=$220, then;
220 = 300+31x-3.90x^2
300+31x-3.90x^2 - 220 = 0
3.90x^2 + 31x - 80 = 0
x = -31±√31²-4(-80)(3.9)/2(3.9)
x = -31±√961+1.248/7.8
x = -31±47/7.8
x = -31+47/7.8
x = 16/7.8
x = 2.05
hence the number of working hours is 2.05hrs
Answer:
The answer to that is 438 miles.
I believe the answer is x=0
Answer: y^2 - 6y - 2. To find the sum, add the like-variables. You add them because there is a plus between the two sets of parenthesis. Take away the parenthesis (since there aren’t any factors taken out of either one) and add or subtract accordingly. Since 5y^2 and -4y^2 have the same variable AND exponent, they can be added. The same goes for the -9y and 3y. After adding the like-variables, you should get y^2 - 6y - 2.