Solve: 6x + 4 = 5x - 13
A. -52
B. -17
C. 9
D. -9
Answer: B
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Find the product. (The expression is not a polynomial, but the formula can still be used.)
?
?
A. ?2 - x B. ?4 + x C. ?x - 4 D. ??4 - x E. ?2 + x
Solve the variation problem.The amount of simple interest earned on an investment over a fixed amount of time is jointly proportional to the principle invested and the interest rate. A principle investment of $3200.00 with an interest rate of 8% earned $1280.00 in simple interest. Find the amount of simple interest earned if the principle is $4600.00 and the interest rate is 6%.
A. $1840.00 B. $960.00 C. $1380.00 D. $138,000.00
Use a sum-to-product identity to rewrite the expression.cos 
- cos 
A. -2
B. -2
C. -2
D. -2
Solve the system of equations.
A. x = -3z - 5, and y = z + 2, where z is any real number or {(x, y, z) |x = -3z - 5, and y = z + 2, where z is any real number} B. x = 3z + 5, and y = z - 2, where z is any real number or {(x, y, z) |x = 3z + 5, and y = z - 2, where z is any real number} C. x = z - 2, and y = -3z - 5, where z is any real number or {(x, y, z) |x = z - 2, and y = -3z - 5, where z is any real number} D. inconsistent