Solve the equation. First simplify the expression by combining like terms.
y - (y - 
) = 
( y - 8)
A. 
B. - 
C. - 
D. 
Answer: D
Mathematics
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Write the vector v in the form ai + bj, given its magnitude 
and the angle ? it makes with the positive x-axis.
= 15, ? = 180°
A. v = -15j B. v = 15j C. v = -15i - 15j D. v = -15i
Mathematics
Use an Euler diagram to determine whether the argument is valid or invalid.Some cars are considered sporty.Some cars are safe at high speeds.? Some sports cars are safe at high speeds.
A. Invalid B. Valid
Mathematics
Provide an appropriate response.For what values of x is 
= -2?
A. -3 ? x < -2 B. -2 ? x < -1 C. -3 < x ? -2 D. -2 < x ? -1
Mathematics
Use the discriminant of the equation to determine the number of x-intercepts.f(x) = x2 + 2x + 3
A. No x-intercepts B. One x-intercept C. Two x-intercepts
Mathematics