Find the exact value of y, or state that y is undefined.y = cos-1 (-4)

A. ?
B. undefined
C. -4
D. 0


Answer: B

Mathematics

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Solve.The height in meters of females in a certain ethnic group is approximated by h = 0.52 + 2 log (t/3) where t is the girl's age in years and 1 ? t ? 20. Estimate a girl's height at 4 years of age in this particular ethnic group. Round to the nearest hundredth.

A. 0.52 m B. 0.77 m C. 1.12 m D. 0.96 m

Mathematics

Find the unknown degree measure (to the nearest tenth of a degree) for the sector of a circle's graph showing the distribution of bachelor's degrees conferred in languages and humanities.  Bachelor's Degrees Conferred in Languages and Humanities

A. 34.6° B. 39.6° C. 44.6° D. 29.6°

Mathematics

Write as a decimal.92%

A. 0.81 B. 0.92 C. 9.2 D. 0.092

Mathematics

Classify the fraction as proper or improper.

A. proper B. improper

Mathematics