Solve the problem.There is a 3-degree drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on the ground is 37 degrees, what will be the temperature when the plane reaches an altitude of 20,000 feet?
A. 23 degrees
B. 
degrees
C. 
degrees
D. 17 degrees
Answer: B
Mathematics
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Use a calculator to find a decimal approximation for the indicated function values. Round your answer to four decimal places.cos(-3.92)
A. -0.7120 B. -0.7021 C. 0.7120 D. 0.7021
Mathematics
Provide an appropriate response.Factor completely: 2y2 + 5y + 2
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the best buy (based on cost per unit).You have a coupon for 87 cents off Brand A cereal and a coupon for 43 cents off Brand B. A box of 
cereal costs $3.34 for 14.5 ounces. A box of Brand B cereal costs $4.52 for 21.5 ounces. If you use a coupon, which cereal is the better buy?
A. Brand B B. Not enough information C. Brand A D. Equal value
Mathematics
Find the reciprocal.
A. 
B. 
C. 
D. 
Mathematics