Simplify the expression.8a - 5a + 3
A. 3a + 3
B. 6a
C. -3a + 3
D. 13a + 3
Answer: A
Mathematics
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Determine the domain and range of the function.
A. domain: [-2, ?); range: [-2, 2] B. domain: (-2, ?); range: (-2, ?) C. domain: [-2, ?); range: [-2, ?) D. domain: [-2, 2]; range: [-2, ?)
Mathematics
Divide.(x2 + 14x + 48) ÷ (x + 8)
A. x2 + 6 B. x3 - 40 C. x - 40 D. x + 6
Mathematics
Solve the problem.A man rode a bicycle for 12 miles and then hiked an additional 8 miles. The total time for the trip was 5 hours. If his rate when he was riding a bicycle was 10 miles per hour faster than his rate walking, what was each rate?
A. Bike: 13 mph Hike: 3 mph B. Bike: 11.5 mph Hike: 1.5 mph C. Bike: 12 mph Hike: 2 mph D. Bike: 14.5 mph Hike: 4.5 mph
Mathematics
Subtract. Use borrowing, if necessary.
A. 29 B. 139 C. 39 D. 131
Mathematics