Determine whether the ordered triple is a solution of the system.(0, -5, 5)
A. Yes
B. No
Answer: A
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A company installs 5,000 light bulbs. The lifetimes of the lightbulbs are approximately normally distributed with a mean of 500 hours and a standard deviation of 100 hours. Find the approximate number of bulbs that can be expected to last the indicated amount of time.More than 740 hours
A. 49 B. 40 C. 499 D. 4960
Solve the equation.
tan(?) + 1 = 0 for -360° ? ? ? 360°
A. {-150°, -30°, 30°, 150°} B. {-330°, -150°, 30°, 210°} C. {-30°, -210°, 150°, 330°} D. {30°, 150°, 210°, 330°}
Estimate the indicated component or components of the vector. Round to an appropriate number of significant digits.
= 494, ? = 34.5°; Find the vertical component of v.
A. 407 B. 127 C. 687 D. 280
Multiply.9782 × 9
A. 88,048 B. 87,938 C. 88,038 D. 88,138