Find the area of the figure below. (The area of a rectangle is the product of its length and width. The area of a triangle is 
the product of its base and height.)
A. 28
sq. cm
B. 14
sq. cm
C. 10
sq. cm
D. 57 sq. cm
Answer: B
Mathematics
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Find the unit tangent vector of the given curve.r(t) = 3t5i - 12t5j + 4t5k
A. T = 
i + 
j + 
k
B. T = 
i - 
j - 
k
C. T = 
i - 
j + 
k
D. T = 
i - 
j + 
k
Mathematics
Solve.A hiking trail is 19,008 meters long. How many kilometers long is the trail?
A. 190.08 km B. 19.008 km C. 1.9008 km D. 1900.8 km
Mathematics
Multiply and simplify. Write the answer as a mixed number if possible.8
? 1
A. 16
B. 8
C. 12
D. 15
Mathematics
Factor by grouping.x3 - 3x2 + 2x - 6
A. (x2 + 2)(x - 3) B. (x2 + 2)(x + 3) C. (x3 + 2)(x + 3) D. (x2 - 2)(x - 3)
Mathematics