Solve the problem.It can be shown that if the angle of elevation from an observer to the top of an object is A and the angle of elevation d ft closer is B, then the distance from the object to the closest point of observation is given byD = 
ft.Find B if 
and 
Give your answer in degrees to the nearest hundredth.
A. 39.00°
B. 69.67°
C. 19.14°
D. 49.16°
Answer: D
Mathematics
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Determine whether the given function is one-to-one. If so, find a formula for the inverse.f(x) = 8x + 1
A. f-1(x) = 
- 1
B. Not a one-to-one function
C. f-1(x) = 
D. f-1(x) = 
Mathematics
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 133
B. 12
C. 
D. 
Mathematics
State whether the function is linear or quadratic.f(x) = 5 + 7x2
A. Linear B. Quadratic
Mathematics
Find the length of the unknown side of the right triangle. In each case, a and b represent the lengths of the legs and c represents the length of the hypotenuse.
a = 
, b = 
; find c
A. 25
B. 5
C. 
D. 533
Mathematics