Perform the indicated arithmetic.
+ 4
A. 5
B. 4
C. 5
D. 4
Answer: A
Mathematics
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Find the angle between u and v in radians.u = -2i - 6j, v = 7i + 6j + 8k
A. -0.70 B. 1.58 C. 1.84 D. 2.28
Mathematics
Solve the problem.A diving pool that is 9 m deep and full of water has a viewing window on one of its vertical walls. Find the force on a square window, 1.5 m on a side, with the lower edge of the window on the bottom of the pool.
A. 29,700 N B. 181,912.5 N C. 396,900 N D. 16,537.5 N
Mathematics
Provide an appropriate response.Make the temperature conversion of 40°F to °C. Use the formula: C = 
(F - 32)
A. -9.8°C B. 4.4°C C. 104°C D. 129.6°C
Mathematics
Solve the linear equation with the intersection-of-graphs method. Approximate the solution to the nearest hundredth if necessary.
x = 3x - 7.1
A. 1.5 B. -5.6 C. -1.5 D. 5.6
Mathematics