Solve and check.-5.4y = 10.8

A. = -5.4
B. = - 
C. = -2
D. = -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