Solve the problem.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 781. Find a linear equation, in slope-intercept form, that relates the score, y, to the number of hours spent in the review course, x.
A. y = -4.025x + 499.25
B. y = 3.6225x - 503.25
C. y = 4.025x + 499.25
D. y = 3.6225x + 503.25
Answer: C
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Provide an appropriate response.Is the quotient of two monomials always a monomial? Why or why not? If not, give an example.
What will be an ideal response?
Factor, using the given factor. Assume all variables represent positive real numbers.7k-2 + k-4; k-4
A. k-4(7k3 + 1) B. k-4(7k-2 + 1) C. k-4(7k2 + 1) D. 7 k-4(k2 + 1)
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 4(x2 + 4)(x2 + 3)2
A. -4, multiplicity 1, touches x-axis; -3, multiplicity 2, crosses x-axis
B. -4, multiplicity 1, crosses x-axis; -3, multiplicity 2, touches x-axis
C. No real zeros
D. 2, multiplicity 1, crosses x-axis; -2, multiplicity 1, crosses x-axis;
, multiplicity 2, touches x-axis; -
, multiplicity 2, touches x-axis
The vector v has initial point P and terminal point Q. Write v as a position vector.P
, Q
A. 
B. 
C. 
D. 