Write a function rule for the total cost in dollars of gasoline if r gallons of gasoline for $4 per gallon. f(r)

an altitude of 15,000 feet

step-by-step explanation:

42.4

step-by-step explanation:

convert to decimal

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.

vertical=18cm horizontal=18cm hypotenuse=25.5

step-by-step explanation: