Find the LCM of 6, 7, and 30.
A. 1260
B. 1050
C. 210
D. 1470
Answer: C
Mathematics
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Solve by completing the square.x2 - 4x - 15 = 0
A. 2 ± 
B. 2 ± 
C. 4 ± 
D. -2 ± 
Mathematics
Convert as indicated. If necessary, round to two decimal places.45 kilograms to pounds
A. 20.25 lb B. 114.3 lb C. 99 lb D. 47.7 lb
Mathematics
Solve the following quadratic equation by completing the square. Make sure your answer is simplified completely. If there are no real solutions, so state.2x2 + 8x = - 1
A. x = 
or x = 
B. x = 
or x = 
C. x = 
or x = 
D. x = 
or x = 
Mathematics
Use the Half-angle Formulas to find the exact value of the trigonometric function. tan 75°
A. -2 + 
B. -2 - 
C. 2 + 
D. 2 - 
Mathematics