Solve the problem.The temperature at the South pole was 27° at 8 am. At 3 pm, it was -8°. By how many degrees did the temperature drop?
A. by -35°
B. by 35°
C. by -19°
D. by 19°
Answer: B
Mathematics
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Factor.9x4 + 27x2 + 20
A. (3x2 + 5)(3x2 + 4) B. (3x2 + 20)(3x2 + 1) C. (3x2 - 5)(3x2 - 4) D. (9x2 + 5)(x2 + 4)
Mathematics
Solve the equation.Let f(x) = 
- 7. Find all x for which f(x) = 9.3.
A. ? B. {-16.3, 16.3} C. {-16.3, 2.3} D. {-2.3, 2.3}
Mathematics
Solve.The list price of a car is $15,066. The manufacturer offers a rebate of $665. What is the final price of the car?
A. $15,631 B. $14,301 C. $15,731 D. $14,401
Mathematics
Provide an appropriate response.If a polynomial in x of degree 9 is divided by a monomial in x of degree 5, what is the degree of the quotient?
A. 5 B. 14 C. 4 D. Can't tell
Mathematics