Decide Whether or Not the Equations Are Equivalent $\begin{array} { l } z ^ { 2 } = 49 \\z = 7\end{array}$

Q380: Graph the solution set.<br>- <span class="ql-formula"

Q381: Solve the quadratic inequality. Write the

Q382: A boat is 180 feet from the

Q383: Decide what values of the variable

Q384: Solve the formula for the indicated

Q386: Graph the solution set.<br>- <span class="ql-formula"

Q387: Evaluate the discriminant for the equation.

Q388: The area of a square is numerically

Q389: Solve the inequality. Write the solution

Q390: Solve the problem.<br>-Helen Weller invested $12,000 in