Which of the following is the correct factorization of the trinomial below?
-7x2 - 4x + 20

If eh = hg and hg=16, find the diameter of k

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?