Solve the problem.The function F described by F(C) = 
C + 32 gives the Fahrenheit temperature corresponding to the Celsius temperature C. Find the Fahrenheit temperature equivalent to -20°C.
A. -40°F
B. -4°F
C. -112°F
D. -76°F
Answer: B
Mathematics
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Calculate how many times more intense an earthquake with a Richter number of 8.1 is than an earthquake with a Richter number of 6.2. Please round the answer to the whole number.
A. 84 B. 87 C. 79 D. 89 E. 81
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Write the number as a product of prime factors.175
A. 25 × 7 B. 72 C. 52 × 7 D. 25 × 5
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Find absolute maximum and minimum values of the function, if they exist, over the indicated interval. Where no interval is specified, use the real line. List your answers in terms of ordered pairs.
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Find the unit vector in the direction of the given vector. Write your answer in the indicated form.Let u = 
. Find the unit vector in the direction of u, and write your answer in component form.
A. 
B. 
C. 
D. 
Mathematics