Evaluate the algebraic expression for the given value or values of the variable(s).3x2 + 7y;
x = 4 and y = 9
A. 271
B. 621
C. 207
D. 111
Answer: D
Mathematics
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Find the period of the function.y = sin 5x
A. 2?
B. 
C. 1
D. 5
Mathematics
Solve the problem.A woman borrowed $10,000 at 8% interest compounded annually. If the loan was paid off at the end of 6 years, how much did she pay? Round to the nearest cent.
A. $10,800.00 B. $14,800.00 C. $5868.74 D. $15,868.74
Mathematics
Let f be a function from a set X to a set Y. Define precisely (but concisely) what it means for f to be one-to-one.
What will be an ideal response?
Mathematics
Evaluate the sum.
A. 59 B. -31 C. 23 D. -4
Mathematics