Let's solve your equation step-by-step.
1/3x^2=16
Step 1: Divide both sides by 1/3.
1/3x^2 ÷ 1/3 = 16 ÷ 1/3
x^2=48
Step 2: Take square root.
x=±√48
x=4√3 or x=−4√3
Answer: x=4√3 or x=−4√3
Direct variation is of the form y=kx, where k is the constant of variation. It is "direct" because as x increases/decreases so does y in the same magnitude.
y=kx, In this case the dependent variable y, is miles and the independent variable x, is gallons. We are told that the car gets 28mi/gal so
y=28x
Answer:

Step-by-step explanation:
Given the following question:

In order to simplify fractions with exponents we simply subtract the exponents.



Hope this helps.
90/100
70/100
26/100
You have to multiply the numerator and the denominator by the same number in order to get an equal fraction.