Find the exact value under the given conditions.sin ? = 
, 
< ? < ?; cos ? = 
, 0 < ? < 
Find sin (? - ?).
A. - 
B. 
C. 
D. 
Answer: B
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Find the inverse of the matrix.
a. 
b. 
c. 
d. 
e. 
Express each of the following statements in symbols, using <, >, ?, or ?.r is negative.
A. r ? 0 B. r < 0 C. r ? 0 D. r > 0
Find the zeros of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = x4 - 121x2
A. x = 0, crosses the x-axis; x = 11, crosses the x-axis; x = -11, crosses the x-axis B. x = 0, touches the x-axis and turns around; x = 11, crosses the x-axis; x = -11, crosses the x-axis C. x = 0, touches the x-axis and turns around; x = 121, touches the x-axis and turns around D. x = 0, touches the x-axis and turns around; x = 121, crosses the x-axis
Solve the problem. Round to the nearest tenth, if necessary.If an object is propelled upward from a height of 96 feet at an initial velocity of 80 feet per second, then its height h after t seconds is given by the equation 
After how many seconds does the object hit the ground?
A. 5.0 B. 3.0 C. 11 D. 6