Evaluate the expression when m= - 4 and z= - 3.
A. 878
B. 808
C. 920
D. 864
E. 871
Answer: D
Mathematics
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Solve the problem.A new car dealership sold 270 cars in 2010, and sales are increasing by about 58 cars per year. Let s be the number of cars sold in the year that is t years since 2010. Find an equation for a linear model to describe this situation. Then solve that equation for t.
A. t = 
B. t = 
C. t = 
D. t = 
Mathematics
Find the sum of the finite geometric sequence.
a. 43
b. 22
c. 127
d. 63
Mathematics
Compute the discriminant. Then determine the number and type of solutions for the given equation.6x2 = -8x - 7
A. 232; two unequal real solutions B. -104; two complex imaginary solutions C. 0; one real solution
Mathematics
Add or subtract as indicated. Write the answer in simplest form.- 
- 
A. - 
B. - 
C. - 
D. - 
Mathematics