Which equation best represents the relationship between the number of hours an electrician works h and the total cost charges c emergency house call-$30 one-time fee rate-$55/hour a. c=30+55 b. c=30h+55 c.30+55 d. c=30h+55

3 ft

step-by-step explanation:

since the triangle is right use pythagoras' identity to solve for a

the square on the hypotenuse is equal to the sum of the squares on the other two sides, that is

a² + 8² = ( )²

a² + 64 = 73 ( subtract 64 from both sides )

a² = 9 ( take the square root of both sides )

a = = 3