Find the vertex of the parabola.y = 7x2 + 4x + 4
A. 
B. 
C. 
D. 
Answer: A
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Find f so that F = ?f. If the fuction is not conservative state so.F(x,y,z) = 7i + -ezj - yezk
A. f(x, y, z) = 7x - yez + C B. f(x, y, z) = ye7xyz + C C. f(x, y, z) = 7xyez + C D. not conservative
Solve.How long will it take for prices in the economy to double at a 5% annual inflation rate? Use the exponential growth model P(t) = P0ekt.(Round to the nearest year.)
A. 17 yr B. 23 yr C. 14 yr D. 12 yr
Determine the values of the given functions as indicated rounded to four decimal places. Find sin 15° by using 15° = 60° - 45°.
A. 0.2679 B. 0.9659 C. 0.7071 D. 0.2588
Solve the problem.During one year, the Larson's real estate bill included $426 for local schools. Of this amount, $165 went to the high school district. What percent did the Larsons pay to the high school district? (Round answer to two decimal places.)
A. 16.50% B. 61.27% C. 38.73% D. 38.50%