Shade the regions representing the set.(A ? B) ? (A ? B)' 
A. 
B. 
C. 
D. 
Answer: A
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Represent each given condition using a single variable, x.The length and width of a rectangle whose width is four times its length.
A. width = x; length = x + 4 B. width = x; length = 4x C. length = x; width = 4x D. length = x; width = x + 4
Find the area of the circle. Use 3.14 or 
for ? as indicated.Use 3.14 for ?.
A. 18.84785 yd2 B. 30.772 yd2 C. 15.386 yd2 D. 75.3914 yd2
Determine the order of the matrix.
A. 4 × 2 B. 2 × 4 C. 3 × 2 D. 2 × 3
Solve the problem.The inequality |T - 40| ? 7.1 describes the range of monthly average temperatures T in degrees Fahrenheit at a City X. (i) Solve the inequality. (ii) If the high and low monthly average temperatures satisfy equality, interpret the inequality.
A. -47.1 ? T ? 54.2; The monthly averages are always within 
B. 32.9 ? T ? 47.1; The monthly averages are always within 
C. 37.3 ? T ? 42.7; The monthly averages are always within 
D. -42.7 ? T ? 45.4; The monthly averages are always within 