Solve the equation.
+ 3 = 
+ 7
A. 
B. ?
C. 
D. 
Answer: D
Mathematics
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Find the coordinates of the centroid of the curve.Find the coordinates of the centroid of the curve x = 4 cos t + 4t sin t, y = 4 sin t - 4t cos t, 
A. (
, 
) = 
B. (
, 
) = 
C. (
, 
) = 
D. (
, 
) = 
Mathematics
The amount A in an account is given by the formula A = p + i where p is the principal and i is the interest.How much interest was earned if an original deposit (the principal) of $4,350 has grown to be $4,630?
A. $290 B. $280 C. $295 D. $285 E. $260
Mathematics
Perform the indicated operations. Simplify the result.
- 
- 
A. 
B. 
C. 
D. 
Mathematics
Convert as indicated. If necessary, round to two decimal places.68 pounds to kilograms
A. 72.08 kg B. 149.6 kg C. 30.6 kg D. 172.72 kg
Mathematics