Solve the equation.log15(x + 30) = 3 - log15x
A. {75}
B. {-75}
C. {-45}
D. {45}
Answer: D
Mathematics
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Give the degree measure of ?.? = sin-1 
A. 120° B. 60° C. 135° D. 45°
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Write the sentence as a proportion.8.3 gallons is to 4.2 minutes as 41.5 gallons is to 21 minutes.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
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Solve the problem.A certain company has found that its expenditure rate per day (in hundreds of dollars) on a certain type of job is given by 
where x is the number of days since the start of the job. Find the expenditure if the job takes 6 days.
A. $16 B. $6000 C. $1600 D. $60
Mathematics
Multiply or divide as indicated. Write the answer in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Mathematics