The answer should be the 1st one.
Just use the quadratic formula and plug in the necessary numbers when requested and work from there.
Answer:
It's a proportion.
2 is to x as 15 is to 9, or 2/x = 15/9.
Multiply the means and extremes
15x = 18
divide both sides by 15 to get x by itself.
x = 1.2
Step-by-step explanation:
Chucks age=C
Dave’s age=x
C=x-3
X^2-5x, given x=7,
(7)^2-5(7)=14
sqrt(14)=3.74
Answer:
The new volume is 375 cubic inches.
Step-by-step explanation:
Volume of a right square prism:
The volume of a right square prism is given by:

In which a is the length of the edge and h is the height.
A right square prism has a volume of 75 cubic inches.
This means that:

The prism is enlarged so its height is increased by a factor of 5
Edge is the same, height is 5 times. So

The new volume is 375 cubic inches.