Solve the problem.A painter needs to cover a triangular region 64 meters by 69 meters by 70 meters. A can of paint covers 70 square meters. How many cans will be needed?
A. 15 cans
B. 321 cans
C. 29 cans
D. 3 cans
Answer: C
Mathematics
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Identify the equation as either an identity or not.
= cot 2x cot x
A. Identity B. Not an identity
Mathematics
Solve the equation by factoring.15x3 + 90x2 + 120x = 0
A. {-4, -2}
B. 
C. {0, -4, -2}
D. {0, 4, 2}
Mathematics
Find the domain and range for the function.
A. D: {-6, -4, 4, 6}; R: {-4, -2, 4, 6} B. D: {-4, -2, -1, 3, 4, 6}; R: {-6, -4, -2, 2, 4, 6} C. D: {-6, -4, -2, 0, 2, 4, 6}; R: {-4, -2, -1, 3, 4, 6} D. D: {-6, -4, -2, 2, 4, 6}; R: {-4, -2, -1, 3, 4, 6}
Mathematics
Find the exact value by using a half-angle identity.cos 75°
A. 
B. 
C. - 
D. - 
Mathematics