Solve and check.-5.4y = 10.8
A. y = -5.4
B. y = - 
C. y = -2
D. y = -8.8
Answer: C
Mathematics
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (t + 7)i + (ln (cos t) - 9)j + 8k
A. a = (-sec t tan t)T - (sec t)N B. a = (sec t tan t)T + (sec t)N C. a = (-sec t tan t)T + (sec t)N D. a = (sec t tan t)T - (sec t)N
Mathematics
Determine whether the argument is valid or invalid.Michael Bolton is a hunk or Madonna cannot sing. If Madonna cannot sing, then Cigar does not win the Triple Crown. Cigar wins the Triple Crown. Therefore, Michael Bolton is not a hunk.
A. Valid B. Invalid
Mathematics
Find the sum. Simplify when necessary.5.1 + (-9.3)
A. 14.4 B. -4.2 C. 4.2 D. -14.4
Mathematics
Perform the indicated operation. Simplify, if possible.
- 
A. 
B. - 
C. 
D. 
Mathematics