(plz hlp me asap)
which expression is the multiplicative inverse of r, where r is a non-zero number?
a. -1/r
b. - r
c. 1/r
d. 2r

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?

The roof of a farm silo is the shape of a hemisphere and is made of sheet tin. if the diameter of the silo is 126.5 feet, how much sheet tin is needed to make the roof? (use π = 3.1416.)