Write as a number.Round 81,001 to thousands.
A. 81,000
B. 81,010
C. 81,100
D. 82,000
Answer: A
Mathematics
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Find a polar equation for the curve represented by the given Cartesian equation.
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Solve the exponential equation. For irrational solutions, round to four decimal places.e-t = 0.01
A. {-1.01} B. {1.01} C. {-4.6052} D. {4.6052}
Mathematics
Find the area of the rectangle or square.Length = 5 in., width = 4 in.
A. 18 in.2 B. 9 in.2 C. 20 in.2 D. 40 in.2
Mathematics
250 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 75 and standard deviation ? = 10.Approximately what percentage of the test scores had standardized values between -3 and 3?
A. 95% B. 68% C. 99.7% D. 50% E. none of these
Mathematics