Compute the product.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).2x + 3y = 6
A. r(2 sin ? + 3 cos ?) = 6 B. 2 cos ? + 3 sin ? = 6r C. 2 sin ? + 3 cos ? = 6r D. r(2 cos ? + 3 sin ?) = 6
Mathematics
Solve the problem.How much pure acid should be mixed with 4 gallons of a 50% acid solution in order to get an 80% acid solution?
A. 6 gal B. 16 gal C. 2 gal D. 10 gal
Mathematics
Evaluate the rational expression for the given value(s) of the variable(s).
for x = -9
A. 
B. 
C. 
D. 
Mathematics
Simplify.
? 
+ 
? 
A. 
B. 
C. 
D. 
Mathematics