Solve the problem.An average score of 90 for 5 exams is needed for a final grade of A. John's first 4 exam grades are 79, 89, 97, and 95. Determine the grade needed on the fifth exam to get an A in the course.
A. 90
B. 100
C. 85
D. 95
Answer: A
Mathematics
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Find the missing parts of the triangle. A = 65.3°a = 2.15 kmb = 2.25 kmIf necessary, round angles to the nearest tenth and side lengths to the nearest hundredth.
A. B1 = 42.8°, C1 = 71.9°, c1 = 1.61 km B2 = 6.6°, C2 = 108.1°, c2 = 0.27 km B. no such triangle C. B1 = 71.9°, C1 = 42.8°, c1 = 1.61 km B2 = 108.1°, C2 = 6.6°, c2 = 0.27 km D. B = 71.9°, C = 42.8°, c = 1.61 km
Mathematics
Write the mixed number as an improper fraction.5
A. 
B. 
C. 
D. 
Mathematics
Determine whether the graph of f(x) is a sinusoid.f(x) = 5 sin x + 7 cos x
A. Yes B. No
Mathematics
Simplify the fraction.
A. -8w B. 8w C. -8 D. 8
Mathematics