Solve the problem.A 2700-lb car travelling uphill has a grade resistance of 
Use a tangent function to estimate the angle of the grade. Give your answer to the nearest tenth.
A. 8.5
B. 4.2
C. -8.5
D. -4.2
Answer: B
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Solve the problem.A water tank can be filled in 9 minutes and emptied in 10 minutes. If the drain is accidentally left open when the tank is being filled, how long does it take to fill the tank?
A. 90 min
B. 
min
C. 
min
D. 
min
The fourth vertex of the parallelogram shown is (
).
Answer the following statement true (T) or false (F)
Solve the equation.
x+1= 
x-1
A. 
B. 
C. 
D. 
The terminal side of ? in standard position contains the given point. Find the values of the six trigonometric functions of ?.(-7, -24)
A. sin ? = - 
cos ? = - 
tan ? = 
csc ? = - 
sec ? = - 
cot ? = 
B. sin ? = 
cos ? = - 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
C. sin ? = - 
cos ? = - 
tan ? = - 
csc ? = - 
sec ? = - 
cot ? = - 
D. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 