Explanation

m∠CBD = 125m∠ABC = 180 − 125 = 55m∠A m∠ABC = 90m∠A 55 = 90m∠A = 90 − 55 = 35

Ken earned x dollars at his part-time job on Friday. His wife earned \(\$12\)more than twice Ken’s pay (2x + 12). Together, they earned \( \$174\). How much did Ken earn on Friday?

If \(x^{2}+ 4x = 0\), how many values of \(x\) are possible?

The value of a new computer decreases 20% each year. Ryan originally purchased his computer for \(\$1500\) . What is the value of Ryan’s computer at the end of the second year he owns it?

\(3x+n = 19\) \(-2x-n = -14\) If the equations above are true, what is the value of x?

Determine if the following function is even or odd.\(f(x)=\frac{5 x}{2 x^{2}-1}\)

Last month, the balance in Tisha's checkbook was \(\$1219.17\). Since then she has deposited her latest paycheck of \(\$2425.66\) and written checks for \(\$850.00\) (rent), \(\$235.89 \)(car payment), and \( \$418.37 \)(credit card payment). What is the current balance in Tisha's checking account?

Evaluate \(y^{2}(4 x-y)\) if y = −2 and x = 8.

When Felicia checked out at the grocery store, she gave the clerk \(\$20.00\) and received \(\$3.80 \)as the correct amount of change. Which of the following could Felicia have bought?