Use simple probability to complete the exercises.Use the spinner below to answer the question. Assume that it is equally probable that the pointer will land on any one of the five numbered spaces. If the pointer lands on a borderline, spin again. Find the probability that the arrow will land on an odd number. 
A. 0
B. 1
C. 
D. 
Answer: D
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Solve the formula for the indicated variable. Then use the supplied values to solve the equation.The relationship between the distance p from an object to a lens, the distance q from the image to the lens, and the focal length f (the distance from the lens to the principal focus) is given by 
Solve for f. What is the focal length when p is 726 mm and q is 24.2 mm? (All values are approximate.)
A. f = p + q = 750 mm
B. f = 
+ 
= 1.00 mm
C. f = 
= 23.4 mm
D. f = pq - p - q = 16,800 mm
Solve the problem.The two solutions of the equation 3x2 = 4x + 7 are
A. -1 and ?.
B. -1 and 
.
C. 1 and 
.
D. -1 and 
.
E. none of these
Determine if the following is a linear equation in one variable. If not, state why not.
= 4x + 6
A. It is not a linear equation in one variable because it is nonlinear. B. It is not a linear equation in one variable because it is not an equation. C. It is a linear equation in one variable. D. It is not a linear equation in one variable because it has more than one variable.
Use your graphing calculator in polar mode to generate solutions for the equation using values of ? that are multiples of 15°. Sketch the graph of the equation using the values from your table.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
