Add or subtract as indicated.
- 
A. 
B. 
C. 
D. 
Answer: C
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Solve the equation.log (2 + x) - log (x - 4) = log 3
A. x = -7
B. x = 7
C. x = 
D. No solution
Complete the factoring.5x2 - 25x = 5x( )
A. x2 - 5 B. 5 - x C. 5 - x2 D. x - 5
Solve the problem.A faucet is used to add water to a large bottle that already contained some water. After it has been filling for 5 seconds, the gauge on the bottle indicates that it contains 14 ounces of water. After it has been filling for 13 seconds, the gauge indicates the bottle contains 30 ounces of water. Find and interpret the average rate of change in the volume of water per second.
A. 4 ounces per second; the average rate of change in the volume of water is 4 ounces per second.
B. 
ounce per second; the average rate of change in the volume of water is 
ounce per second.
C. 17 ounces per second; the average rate of change in the volume of water is 17 ounces per second.
D. 2 ounces per second; the average rate of change in the volume of water is 2 ounces per second.
Write the number in standard form.The speed of light is 1.86 × 105 miles per hour.
A. 186,000 B. 18,600,000 C. 1,860,000 D. 0.0000186