Perform the exponentiation.(-7)2
A. -49
B. 14
C. -14
D. 49
Answer: D
Mathematics
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Solve the problem.For what values of t is r(t) = ti + 
j continuous?
A. {t ? ?: t ? -8}
B. {t ? ?: t ? 0 and t ? -8}
C. {t ? ?: t ? 0}
D. {t ? ?: t ? 0 and 
? 8}
Mathematics
Provide an appropriate response.What is the name of the given shape? 
A. circle B. rectangle C. parallelogram D. square
Mathematics
Find a parametric equation of the indicated ellipse.
A. x = 6 cos t + 2, y = 3 sin t - 1 B. x = 6 cos t - 2, y = 3 sin t + 1 C. x = 3 cos t - 2, y = 6 sin t + 1 D. x = 3 cos t + 2, y = 6 sin t - 1
Mathematics
Solve.Find the perimeter of the trapezoid.
A. 
in.
B. x + 10 in.
C. 
in.
D. 
in.
Mathematics