Use the information given about the angle ?, to find the exact value of the indicated trigonometric function.cos ? = - 
, ? in quadrant II Find sin 2?.
A. 
B. - 
C. - 
D. 
Answer: B
Mathematics
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Find the amplitude or period as requested.Find the amplitude of y = 4 cos 
.
A. 2
B. 
C. 8
D. 4
Mathematics
Use a graphing calculator to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.5 + 10 + 20 + 40 + 80 + ... + 5 ? 212
A. 40,935 B. 40,957 C. 40,955 D. 40,992
Mathematics
Solve.The formula C = 
(F - 32) expresses the relationship between Fahrenheit temperature, F, and Celsius temperature, C. Use the formula to convert 41°F to its equivalent temperature on the Celsius scale.
A. 16°C B. 41°C C. 5°C D. 1°C
Mathematics
Answer the question.With the exponential function f(x) = ax, why must we not allow a < 0?
What will be an ideal response?
Mathematics