Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Incorrect; should be 26,678 R3
B. Correct
C. Incorrect; should be 26,679 R2
D. Incorrect; should be 26,678 R4
Answer: B
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The graphs show the position s, velocity v = ds/dt, and acceleration a = d2s/dt2 of a body moving along a coordinate line as functions of time t. Which graph is which?
A. B = position, A = velocity, C = acceleration B. C = position, A = velocity, B = acceleration C. A = position, C = velocity, B = acceleration D. A = position, B = velocity, C = acceleration
Evaluate the determinant by inspection.
A. 0 B. -420 C. -8 D. -20
Solve for x using an equivalent exponential expression.Find the area of a rectangle that measures 2 inches by 7 feet. Give the area in square inches and in square feet.
A. 168 sq in.; 
sq ft
B. 216 sq in.; 1
sq ft
C. 1
sq in.; 168 sq ft
D. 168 sq in.; 1
sq ft
Find the dot product v ? w.v = 3i + 4j + k and w = 2i + 7j + 3k
A. -19 B. 110 C. -37 D. 37