Add.2p2q2 + 3p2q - 7pq and 7p2q2 - 2p2q + 7pq - 4
A. 9p2q2 + p2q - 4
B. 9p2q2 + 5p2q - 14pq - 4
C. 9p2q2 + p2q - 14pq - 4
D. 9p2q2 + 5p2q + 14pq + 4
Answer: A
Mathematics
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Find the equation of the curve described by the given information.Ellipse: center 
, focus 
, vertex 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.cos3 x
A. 
cos x + 
cos 3x
B. 
cos x - 
cos 3x - cos 2x
C. 
cos x + 
cos 3x + cos 2x
D. 
cos x - 
cos 3x
Mathematics
Use the properties of equality to solve the equation.8z = 
A. 
B. - 
C. - 
D. 
Mathematics
Solve.A circular walkway has a radius of 238 m. Approximate the distance around the walkway. Use 
for 
A. 748 m B. 178,024 m C. 374 m D. 1496 m
Mathematics