Answer:
The correct answer is A. 5(x + 3)(x - 3)
Step-by-step explanation:
In order to solve this, we start by pulling out the greatest common factor.
5x^2 - 45
5(x^2 - 9)
Now we can use the difference of two squares to factor the rest of the equation.
5(x + 3)(x - 3)
Step-by-step explanation:
2 3/4 gallons in 3 2/3 minutes
equal to :
11/4 ÷ 11/3 =
11/4 × 3/11 =
3/4 gallons per minutes
or
0.75 gpm
Answer:
10 sides
Step-by-step explanation:
1) First recall how to obtain the measurements of both interior angles and exterior angles:
Interior angles can be calculated from the formula
Sum of Interior Angles = (n-2)180
Sum of Exterior Angles = 360
From the Sum formulas, you can obtain the formula for the individual angles
Interior angle = [(n-2)180]/n
Exterior angle = 360/n
2) Now set up your equation:
[180(n-2)]/n = 4(360/n)
3) Solve for n
180(n-2) = 4(360)
n-2 = 8
n= 10
