Write the phrase as a variable expression. Use x to represent "a number."6 times a number
A. 6 - x
B. 6 + x
C. 
D. 6x
Answer: D
Mathematics
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Solve the problem.The range x of a projectile fired with velocity vo at an angle ? with the horizontal is given by 
where g is gravitational acceleration. Determine x in terms of vo and g for ? = 21°.
A. 
B. 
C. 0.67
D. 
Mathematics
Find the magnitude of the vector.u = 
A. 3
B. 6
C. 90
D. 6
Mathematics
Solve by isolating the absolute value and using the absolute value property.
+ 5 = 13
A. {-3, 13} B. {3, -13} C. {3} D. ?
Mathematics
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 0.95x - 11.8 B. y = 1.05x + 11.8 C. y = 1.05x - 11.8 D. y = 0.95x + 11.8
Mathematics