The hypotenuse of a right triangle is 65 m long. If one of the legs is 39 m long, how long is the other leg?

52 m

Step-by-step explanation:

(a^2) + (b^2) = (c^2)

(39^2) + (b^2) = (65^2)

(39^2) + (b^2) = (65^2)

1521 + (b^2) = 4225

(b^2) = 2704

b = 52

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)