Determine if the equation is an identity.sin(x + y) cos y - cos(x + y) sin y = sin x
A. Identity
B. Not an identity
Answer: A
Mathematics
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Solve the problem.How many cubic inches are in 17 cubic feet?
A. 2448 in.3 B. 22,032 in.3 C. 29,376 in.3 D. 793,152 in.3
Mathematics
Use the rational zero theorem to find all possible rational zeros for the polynomial function.P(x) = 3x3 + 48x2 + 48x + 27
A. ±1, ±3, ±6, ±9, ±27
B. ±1, ± 
, ± 
, ± 
, ±3
C. ±1, ± 
, ±3, ±9, ±27
D. ±1, ±3, ±9, ±27
Mathematics
Use a proportion to solve the problem. Round to the nearest tenth as needed.A building casts a shadow 18 m long. At the same time, the shadow cast by a 44-cm tall pole is 95 cm long. Find the height of the building.
A. 37.4 m B. 6.8 m C. 8.3 m D. 38.9 m
Mathematics
Mentally approximate the product without a calculator.
Mathematics