Solve the equation.log (3 + x) - log (x - 5) = log 3
A. {9}
B. {-9}
C. 
D. ?
Answer: A
Mathematics
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Solve the problem.A chemist needs 170 milliliters of a 43% solution but has only 27% and 61% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 70 mL of 27%; 100 mL of 61% B. 100 mL of 27%; 70 mL of 61% C. 90 mL of 27%; 80 mL of 61% D. 80 mL of 27%; 90 mL of 61%
Mathematics
Simplify.(5x - 4y + 2) - 2(-5x + 4y - 2)
A. 10x - 8y + 4 B. -15x + 12y - 6 C. 15x - 12y + 6 D. -10x + 8y - 4
Mathematics
Find the x-intercepts of the graph of each equation.y = 9x2 + 30x + 25
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Mathematics
Solve for the indicated variable. Assume the variable you are solving for must be greater than 0.Ve = 
mv2, for v
A. v = 
B. v = 
C. v = 
D. v = 
Mathematics