Solve the problem.The perimeter of a rectangular field is 68 m. If the width were doubled and the length were increased by 21 m, the perimeter would be 134 m. Find the length and the width.
A. Length: 22 m; width: 12 m
B. Length: 17 m; width: 12 m
C. Length: 12 m; width: 22 m
D. Length: 17 m; width: 17 m
Answer: A
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Find possible value(s) of ? in the interval [0°, 360°) with the given trigonometric function value.tan ? = 1
A. 225°; 315° B. 45°; 225° C. 45°; 315° D. 135°; 225°
Solve the system of equations. If there is no solution to the system, give a reason.5x + 2y + z = -112x - 3y - z = 177x + y + 2z = -4
A. (0,-6, 1) B. (-3, 0, 4) C. (0, 6, -1) D. (3, 0, -4)
Solve the problem.Lisa has 4 skirts, 6 blouses, and 3 jackets. How many 3-piece outfits can she put together assuming any piece goes with any other?
A. 24 possible outfits B. 72 possible outfits C. 13 possible outfits D. 144 possible outfits
Write out the sum.
A. 12 + 15 + 18 + ... + (3n + 9) B. 9 +12 + 15 + ... + (3n + 9) C. 1 + 2 + 3 + ... + n D. 3n + 9