Answer:
-5 x (4-n)
Step-by-step explanation:
(x+4)(x-4) =0
x +4 = 0
x = -4
x - 4 =0
x = 4
answers , x = -4 and x=4
Is there a picture of the question?
To find out how many hours it rained, divide the total rise in the river by the amount it rose every hour.
First convert the mixed number into an improper fraction. We do this by multiplying the denominator to the whole number, adding it to the numerator, which becomes our new numerator, and we keep the denominator the same:
When dividing fractions we flip(the reciprocal) the one we're dividing by and multiply:
Multiply the numerators and denominators together:
Simplify by dividing:
So it rained for 10 hours.
Need additional information, which is the height and which is the diameter of the cylinder from the measurements supplied? Standard forumula for locating Radius and Volume of a cylinder are as follows.
Radius=Diameter/2
Volume=Base X height
Base= 3.14*r*r