Solve.21 = -19 + a
A. a = -40
B. a = -2
C. a = 40
D. a = 2
Answer: C
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Three players (one divider and two choosers) are going to divide a cake fairly using the lone divider method. The divider cuts the cake into three slices (s1, s2, and s3).Suppose the choosers value the slices as follows:
Which of the following is a fair division of the cake?
A. Chooser 1 gets s3; Chooser 2 gets s2; Divider gets s1. B. Chooser 1 gets s2; Chooser 2 gets s1; Divider gets s3. C. Chooser 1 gets s2; Chooser 2 gets s3; Divider gets s1. D. Chooser 1 gets s1; Chooser 2 gets s2; Divider gets s3. E. none of these
Solve the problem.In the figure shown below, A' is the image of A and C' is the image of C under a rotation having a rotocenter located at point 
A. P. B. R. C. Q. D. S. E. none of these
Perform the indicated operation. Write the answer in simplest form.
? 
A. 
B. 
C. 
D. 
Provide an appropriate response.Which of the other three methods for solving quadratic equations is used to derive the quadratic formula?
What will be an ideal response?