Solve the problem.A bike road race starts at an elevation of 610 feet and passes through 5 stages where the elevation changes by 87 feet, -707 feet, -325 feet, 239 feet, and -70 feet. At what elevation does the race end?
A. -2038 feet
B. 1399 feet
C. 2038 feet
D. -166 feet
Answer: D
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Determine whether the expression represents a number that is positive, negative, or zero.(-7)-9
A. Negative B. Zero C. Positive
Solve the problem.A photographer points a camera at a window in a nearby building forming an angle of 42° with the camera platform. If the camera is 52 m from the building, how high above the platform is the window, to the nearest hundredth of a meter?
A. 1.11 m B. 0.9 m C. 46.82 m D. 57.75 m
Use identities to find the indicated value for each angle measure.cos ? = - 
, 
< ? < ?
Find cos(2?).
A. - 
B. 
C. 
D. - 
Provide an appropriate response.Which of the four methods of solving quadratic equations work(s) for any quadratic equation?
A. The quadratic formula and factoring B. Finding square roots and the quadratic formula C. Factoring D. Completing the square and the quadratic formula