The equation of the parabola whose focus is at (7, 0) and directrix at x = - 7 is:

y = (1/28) x²

x = (1/28) y²

x = - (1/28) y²

A company purchased 400 units for $20 each on January 31. It purchased 520 units for $26 each on February 28. It sold a total of 560 units for $40 each from March 1 through December 31.

What is 2+3m=17 1:7 2:6 3:10 4:5

A metallurgist has one alloy containing 21% titanium and another containing 50% titanium. How many pounds of each alloy must he use to make 44 pounds of a third alloy containing 37% titanium? (Round to two decimal places if necessary.)

Evelyn is making a costume for her school play. She needs to buy 2 yards of cotton fabric at a cost of $3.49 per yard, and 1/2 yard of satin fabric at $5.98 per yard. She has $15 to spend on the fabric.

While driving with his father, Amit his guys breath whenever they pass through a particular tunnel. Amit counts the number of seconds he holds his breath, from the beginning of the tunnel to the end of the tunnel, and finds he good his breath, on

Solve This 3+10+20 Squared + 25 (8 times * ) + 2 =

What is 3 (x+7) in expanded form?

Larry has 7 more dimes than nickels, for a total value of $1.45. If n represents the number of nickels, which equation could be used to find the number of nickels Larry has?

If the perimeter of A rectangle is 70" in and the length is 11" in more than its width find the area of the rectangle

What is the output of the following function for x = - 4? F (x) = 3x^5 + 4x^3 - x + 11