Solve the compound inequality.3(x + 1) < 21 and -2(x + 5) > -26

A. (-?, 8)
B. (6, 8)
C. No solution
D. (-?, 6)


Answer: D

Mathematics

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Find the limit of the sequence if it converges; otherwise indicate divergence.an = (-1)n 

A. 1 B. 0 C. 5 D. Diverges

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Solve.Newton's Law of Cooling states that if a body with temperature T1 is placed in surroundings with temperature T0 different from T1, then the body will either cool or warm to temperature T(t) after time t, in minutes, where A cup of coffee with temperature 105°F is placed in a freezer with temperature 0°F. After 5 minutes, the temperature of the coffee is 69.3°F. What will its temperature be 20 minutes after it is placed in the freezer? Round your answer to the nearest degree.

A. 18°F B. 16°F C. 17°F D. 20°F

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Verify the identity.1 + sec2 x sin2 x = sec2 x

What will be an ideal response?

Mathematics