Write the fraction.According to a recent study, 10 out of 15 visits to a hospital emergency room were for an injury. What fraction of emergency room visits are NOT injury-related?

A.
B.
C.
D.


Answer: C

Mathematics

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Find the area of the region specified in polar coordinates.the region enclosed by the curve r = 9 - 3 cos ?

A. ?
B. 45?
C. ?
D. 90?

Mathematics

Find the product.(5m2)(4m3)

A. -20m5 B. 20m5 C. 20m D. -20m

Mathematics

Factor. Assume that variables used as exponents represent positive integers.7x2n + 9xn - 10

A. (xn - 2)(7xn + 5) B. (xn - 5)(7xn + 2) C. (xn + 2)(7xn - 5) D. prime polynomial

Mathematics

Perform the indicated operation. Express the solution in scientific notation.

A. 109 B. 330 × 10-9 C. 10-9 D. 10-8

Mathematics