A sum means that two numbers are added together. A square means that a number is raised to the second power.
The sum of a number c and its square can be written with this algebraic expression:
Answer: it will cost $4.85
Step-by-step explanation:
Hope this helped :)
Your final answer would be 73, because you would have to plug in 5 for Y.
F(-9)= 1/3(-9)^2 + 5
F(-9) = 1/3(81) + 5
= 27 + 5
= 32
Hope this helps!
Answer:
1.42 hours
Step-by-step explanation:
In this case we must take into account that the speed would be to fill a pool for a time, that this case is in hours, therefore it would be like this:
1/5 for the first pipe
1/2 for the second pipe
Now, we will use both at the same time, therefore:
1/5 + 1/2 = 1 / x
0.7 = 1 / x
x = 1 / 0.7
x = 1.42
That is to say that if we use both we will take a total of 1.42 hours
