Subtract the polynomials.(3x - 2) - (-7x + 10)
A. -4x + 8
B. -4x - 12
C. 10x + 8
D. 10x - 12
Answer: D
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Express the number in scientific notation.0.000399
A. 3.99 x 10-3 B. 3.99 x 10-5 C. 3.99 x 104 D. 3.99 x 10-4
Solve the problem.A person is watching a car from the top of a building. The car is traveling on a straight road directly toward the building. When first noticed, the angle of depression to the car is 26° 53'. When the car stops, the angle of depression is 42° 31'. The building is 240 feet tall. How far did the car travel from when it was first noticed until it stopped? Round to the nearest foot.
A. 412 ft B. 191 ft C. 212 ft D. 238 ft
Write the rate as a fraction in simplest form.There are 56 computers for 77 printers.
A. 
B. 
C. 
D. 
Does the graph represent a function that has an inverse function?
A. Yes B. No