Add. Simplify, if possible.- 
+ 
A. 
B. - 
C. 0
D. 
Answer: C
Mathematics
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Use the addition formulas to derive the identity.cos 
= sin x
What will be an ideal response?
Mathematics
Factor the polynomial completely. If the polynomial is prime, so state.5x3y3 - 5x3y2 - 30x3y
A. 5x3y(y - 2)(y + 3) B. x3(5y2 + 10y)(y - 3) C. 5x3y(y + 2)(y - 3) D. prime
Mathematics
Identify the curve represented by the equation.7x2 - 3x = 8y2 - 2 - 5y
A. Hyperbola B. Circle C. Ellipse D. None of these
Mathematics
Solve the problem.A student took out two loans totaling $9000 to help pay for college expenses. One loan was at 8% simple interest, and the other was at 9%. After one year, the student owed 
in interest. Find the amount of the loan at 9%.
A. $3000 B. $480 C. $270 D. $6000
Mathematics