Provide an appropriate response.Using a calculator, find the value of sin 250°. Round to four significant digits.
A. 1.0642
B. -1.0642
C. -0.9397
D. 0.9397
Answer: C
Mathematics
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Subtract.
A. 6720 B. 720 C. 6704 D. 6604
Mathematics
Solve the problem.A pharmaceutical company claims that the concentration of a drug in a patient's bloodstream will be at least 25% for 8 hours. Suppose that clinical tests show that the concentration of the drug (as a percent) t hours after injection is given by 
During what time period is the concentration at least 25%?
A. 1 hours ? t ? 5 hours B. 0 hours ? t ? 8 hours C. 1 hours ? t ? 9 hours D. 2 hours ? t ? 10 hours
Mathematics
Use the square root property to solve the quadratic equation.11x2 = 4
A. ± 
B. 
C. ± 
D. ± 
Mathematics
Find the derivative of y with respect to x.y = sec-1 
A. 
B. 
C. 
D. 
Mathematics