Perform the indicated operations and simplify the result so there are no quotients.tan2? - 3 sin ? tan ? sec ?
A. 1 + cot ?
B. -2 tan2?
C. sec ? csc ?
D. sin ? tan ?
Answer: B
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Find the standard deviation for each data set. Round to one more place than the data.19.6, 12.6, 38.9, 31.8, 22.5, 21.4
A. 4,031.6 B. 9.38 C. 35.4 D. 3,591.7
Convert the polar equation to a rectangular equation.r = 5 cos ? + 2 sin ?
A. x2 - y2 = 5x + 2y B. x2 + y2 = 2x + 5y C. 5x + 2y = 0 D. x2 + y2 = 5x + 2y
Solve the problem. Round to two decimal places if needed.Find the area of the sector of a circle of radius 7 inches formed by a central angle of 2 radians.
A. 7 square inches B. 98 square inches C. 14 square inches D. 49 square inches
Translate to a proportion and solve. Round to the nearest hundredth, if necessary.3120 is what percent of 1300?
A. 42% B. 2.4% C. 240% D. 24%