Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 17°
A. 1.04
B. -0.20
C. 0.96
D. -0.28
Answer: C
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Solve the problem.On a cloudy day, Sun Woo needed to know the height of a window in a building. Sun Woo positioned a mirror on the ground between himself and the building so that when he looked in the mirror, he saw the window. If the mirror was 18.49 cm from his feet and 32.14 m from the base of the building and Sun Woo's eye was 1.79 m above the ground, how high up on the building was the window located? Round to the nearest unit.
A. 3 m B. 103 m C. 1 m D. 311 m
Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(x + 15)2
A. x2 + 225 B. 225x2 + 30x + 225 C. x2 + 30x + 225 D. x + 225
Provide an appropriate response.Explain in your own words a sequence of steps that can be used to solve any quadratic equation in the most efficient way.
What will be an ideal response?
Solve.How long will it take for prices in the economy to double at a 7% annual inflation rate? (Round to the nearest year.)
A. 9 yr B. 23 yr C. 10 yr D. 16 yr