Solve the problem.A child throws a ball with a speed of 8 feet per second at an angle of 75° with the horizontal. Express the vector described in terms of i and j. If exact values are not possible, round components to 3 decimals.
A. -2.071i + 7.727j
B. 7.727i - 2.071j
C. 7.727i + 2.071j
D. 2.071i + 7.727j
Answer: D
Mathematics
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Simplify the expression.
-1/2
A. 
B. not a real number
C. 
D. 
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Find both (a) the LCM and (b) the GCF of the numbers.105 and 195
A. (a) 20,475 (b) 15 B. (a) 15 (b) 1365 C. (a) 1365 (b) 105 D. (a) 1365 (b) 15
Mathematics
Write the slope-intercept form of the equation for the line passing through the given pair of points.(8, -3) and (-8, -3)
A. y = -3 B. 8x - 8y = 0 C. -8x + 8y = 0 D. x = 8
Mathematics
Find the difference.12 - 0.0157
A. 12.0157 B. 11.4843 C. 12.0843 D. 11.9843
Mathematics