Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.sin4 x
A. 
- 
cos 2x
B. 
+ 
cos 2x
C. 
- 2 cos 2x + 
cos 4x
D. 
- 
cos 2x + 
cos 4x
Answer: D
Mathematics
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Solve the problem.A rectangular city park has a jogging loop that goes along a length, width, and diagonal of the park. To the nearest yard, find the length of the jogging loop, if the length of the park is 125 yards and its width is 75 yards.
A. 146 yards B. 346 yards C. 145 yards D. 345 yards
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Match the equation to the correct graph.y = 2(x - 1)2 - 5
A. 
B. 
C. 
D. 
Mathematics
Decide whether or not the functions are inverses of each other.f(x) = 7x - 9, g(x) = 
A. Yes B. No
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Solve the equation using both the addition and multiplication properties of equality.1 = -2x - 5
A. {-3} B. {12} C. {8} D. {4}
Mathematics