Solve.
Calculate the difference between the maximum and minimum temperature in February for North Town.
A. 18°F
B. -14°F
C. 14°F
D. 23°F
Answer: C
Mathematics
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Find the exact circumference of the circle in terms of ?.
A. 729.01? units B. 54.2? units C. 13.5? units D. 27.1? units
Mathematics
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(x2 + 1) - (4x2 + 7) + (x2 + x - 8)
A. -2x2 + x - 14 B. -2x2 + 8x - 7 C. -4x2 + x - 14 D. -3x2 + x - 14
Mathematics
Use trigonometric identities to solve each equation in the interval [0, 2?]3 = 2 cos2 x + 3 sin x
A. 
B. 
C. 
D. 
Mathematics
Find the center (h, k) and radius r of the circle with the given equation. x2 - 14x + 49 + (y - 5)2 = 64
A. (h, k) = (7, 5); r = 8 B. (h, k) = (-5, -7); r = 64 C. (h, k) = (-7, -5); r = 64 D. (h, k) = (5, 7); r = 8
Mathematics