Add.3.9 + 9.87
A. 10.26
B. 12.96
C. 13.77
D. 12.987
Answer: C
Mathematics
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Subtract.-147 - (-93 )
A. 240 B. -54 C. 54 D. -240
Mathematics
The parametric equations of four curves are given. Graph each of them, indicating the orientation.C1: x = 7sin t, y = 7 - 7cos2 t; 
? t ? 
C2: x = ln t, y = ln t2; e-4 ? t ? e3C3: x = t2 - 8, y = t - 3; -4 ? t ? 4C4: x = t - 5, y = t + 2; -4 ? t ? 7
What will be an ideal response?
Mathematics
Find the value of the expression using the given values.-3xy + 4y - 4x = -1, y = -1
A. -7 B. -5 C. -11 D. -3
Mathematics
Determine the principal P (to the nearest cent) that will yield a balance of 
dollars when invested at rate 
for 40 years, compounded 12 times per year. Round the answer to two decimal places.
A. $973.96 B. $273,927.55 C. $16,025.64 D. $37,398.27 E. $402,834.63
Mathematics