23. A área de um paralelogramo em que a base mede \( \mathbf{b} \) e altura mede a é \( 120 \mathrm{~m}^{2} \). DETERMINE a área do retângulo de base 2 b e altura 2a.

1) Are the ratios \( 4: 14 \) and \( 1: 2 \) equivalent? yes no

(5) \( x-\frac{1}{2} x-\frac{2}{3}\left(x-\frac{1}{2} x\right)-8=2 \) \( x-\frac{1}{2} x-\frac{2}{3} x+\frac{1}{3} x=2+8+\frac{7}{6} x=10-0 x=60 \) \( x=60 \) vara

from Unit 2, Lesson 16 Tyler says that \( 9 \frac{11}{12} \times 5 \) is a little less than 50 . a. Do you agree with Tyler? Explain or show your reasoning.

Find the zeros of the polynomial function and state the multiplicity of each. \( f(x)=x^{4}-7 x^{2}+12 \) The smallest zero is -2 with multiplicity 1 . (Type an exact answer, using radicals as needed.) The smaller middle zero is \( -\sqrt{3} \) with multiplicity 1. (Type an exact answer, using radicals as needed.) The larger middle zero is \( \sqrt{3} \) with multiplicity 1 . (Type an exact answer, using radicals as needed.) The largest zero is \( \square \) with multiplicity \( \square \). (Type an exact answer, using radicals as needed.)

42. Multiply: \( 2 \frac{1}{2} \times\left(-\frac{1}{5}\right) \)