If the roots of the quadratic equation : p (q-r) x^2+q (r-p) x+r (p-q) = 0 are equal show that 1/p+1/r=2/q

Solve the equation 4 x/4 = 48 for x. Give the exact solution and an approximation to three decimal places.

Write the expression as either the sine, cosine, or tangent of a single angle. sin 48° cos 15° - cos 48° sin 15° A. cos 33° B. cos 63° C. sin 63° D. sin 33°

How many times does 12 go into 122

Alejandria has four shirts and three pairs of pants. She says that she has seven possible combinations.

Ramal filled 3 pages in a stamp album. This is one sixth of the pages in the album. How many pages are their in ramals stamp album

The set of odd numbers greater than 7 infinite or finite?

F (x) = - 2/3x^2+8x-24 what is the answer to this?

A particular pizza store models their pizza sales based on their price. They find that at the original price of $5 per slice, they will sell approximately 20 slices. But for $2 per slice, they will sell approximately 50 slices.

Find the difference. a) 12 3/10 - 7 7/10 b) 8 1/6 - 3 5/6

What is the combined weight of 1/2