Replace the Cartesian equation with an equivalent polar equation.y = 9
A. r = 9 csc ?
B. r = 9 sec ?
C. r = 9 sin ?
D. r = 9 cos ?
Answer: A
Mathematics
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Simplify the expression.
A. -5 B. -5j C. 5 D. 5j
Mathematics
Illustrate and find the product by the indicated method.Use repeated addition on your calculator to find 6 × 458.
A. 458 × 458 × 458 × 458 × 458 × 458 = 2748 B. 458 + 458 + 458 + 458 + 458 + 458 = 2748
Mathematics
Find the sum ? + ? or the difference ? - ? as indicated.Find ? - ?.? = 90°, ? = 43°32'
A. 46°32' B. 46°28' C. 47°28' D. 47°32'
Mathematics
A football team had control of the ball for the first nine plays in a game. The chart shows the yards gained or lost in each of those plays. 
What was the net gain or loss considering the first four plays?
A. +12 yards B. +16 yards C. -12 yards D. +10 yards
Mathematics