Find the angle between u and v in radians.u = 5i, v = 5i - 10j
A. 1.56
B. 1.40
C. 1.11
D. 0.46
Answer: C
Mathematics
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Find the center (h, k) and radius r of the circle. Graph the circle.x2 + (y + 4)2 = 9
A. (h, k) = (0, 4); r = 3
B. (h, k) = (0, -4); r = 3
C. (h, k) = (-4, 0); r = 3
D. (h, k) = (4, 0); r = 3
Mathematics
Find the center (h, k) and radius r of the circle with the given equation. x2 + y2 = 16
A. (h, k) = (4, 4); r = 16 B. (h, k) = (0, 0); r = 4 C. (h, k) = (4, 4); r = 4 D. (h, k) = (0, 0); r = 16
Mathematics
A card is drawn randomly from a standard 52-card deck. Find the probability of the specified event. The card is a diamond picture card (the jack, queen, or king of diamonds).
A. 
B. 
C. 
D. 
Mathematics
Multiply. Write the answer in lowest terms and as a whole or mixed number where possible.27 ? 
A. 6
B. 10
C. 3
D. 8
Mathematics