Write the expression in lowest terms.
A. -a + r
B. a + r
C. -a - r
D. -1
Answer: C
Mathematics
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For the given rectangular equation, write an equivalent polar equation.x2 = 13y
A. r2 = 13 tan ? sec ? B. r2 = 13 cot ? csc ? C. r = 13 cot ? csc ? D. r = 13 tan ? sec ?
Mathematics
Find the product.(-3x + 9)(-5x + 3)
A. 15x2 - 54x + 27 B. 15x2 - 54x - 54 C. -8x2 - 54x + 27 D. -8x2 - 54x - 54
Mathematics
Solve the problem.A customer purchased 3 bottles of nail polish for $2.90 each. How much does a salesperson earn on this sale if the rate of commission is 41%? Round your answer to the nearest cent.
A. $3.57 B. $8.70 C. $1.19 D. $35.67
Mathematics
Provide an appropriate response.The mean is the arithmetic average of a series of numbers.
A. True B. False
Mathematics