MCAS 2001, 10th Grade Math, Questions 29 to 32

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Question #29

The expression 4x² + 2x - 6 - x(3 - x) is equivalent to

A. 5x² - x - 6

B. 4x² - 2x - 6

C. 3x² + 2x - 6

D. 5x² - 6

Use the figure below to answer question 30.

Which of the following statements gives enough additional information about the figure above to prove that triangle ABC is similar to triangle EDC?

The following formula can be used to calculate the monthly payment, M, on a loan:

where P is the principal, r is the annual rate, and t is the length of the loan in years.

Based on this formula, what is the monthly payment on a 2-year loan for $3,000 at an annual rate of 8%?

A. $605

B. $145

C. $480

D. $125

Use the triangle below to answer question 32.

What is the length x of the altitude of the triangle shown above?

A. 20 cm

B. 25 cm

C. 30 cm

D. 40 cm