Add.4.3335 + 4.9391
A. 9.2716
B. 9.2726
C. 9.3726
D. 9.2626
Answer: B
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 
tk
A. a = 
T
B. a = 
N
C. a = T + 
N
D. a = 
N
If a triangle has vertices of 
and 
then the area of the triangle is given by 
Find the area of the triangle with vertices at the given points.(1, -3) (1, 1) (4, 3)
A. 6 B. 2.5 C. 12 D. 5
Solve the problem.A piece of cardboard is twice as long as it is wide. It is to be made into a box with an open top by cutting 2 cm squares from each corner and folding up the sides. Let x represent the width of the original piece of cardboard. Find the width of the original piece of cardboard, x, if the volume of the box is 2496 cm3.
A. 28 cm B. 24 cm C. 29 cm D. 27 cm
Find the intersection of the given intervals.(-?, ?) ? [-9, ?)
A. [-9, ?) B. (-?, -9] C. ? D. (-?, ?)