Classify the polygon by name. If it is a quadrilateral, give its specific name.
A. Pentagon
B. Rhombus
C. Trapezoid
D. Rectangle
Answer: C
Mathematics
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Solve the proportion.
= 
A. 
B. 
C. 
D. 
Mathematics
Decide whether the expression is or is not an identity.tan 
cos x + tan 
= sin x
A. Identity B. Not an identity
Mathematics
Express the number in terms of j (if necessary, round the result to three significant digits).
A. 9 B. 81j C. 9j D. -9j E. -9
Mathematics
Evaluate the composition of functions.Let f(x) = x2 + 4 and g(x) = 2x + 7. Find (g ? f)(5).
A. 65 B. 51 C. 293 D. 36
Mathematics