Determine whether matrix B is the inverse of matrix A by finding the product AB.A = 
, B = 
A. B = A-1
B. B ? A-1
Answer: B
Mathematics
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Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
A. 
< 
B. 
< 1.23 × 10-2
C. 
< 1.37 × 10-3
D. 
< 4.12 × 10-3
Mathematics
If possible, find AB.
a. 
b. not possible
c. 
d. 
Mathematics
Solve the problem.Charlene baby-sits for $10 per hour. She also works as a tutor for $12 per hour. Because of school, her parents only allow her to work 13 hours per week. How many hours can Charlene tutor and baby-sit and still make at least $75 per week? (a) Write a system of inequalities for this situation.(b) Graph the solution set. 
What will be an ideal response?
Mathematics
Solve the problem.Determine whether the ordered pair (2, 2) satisfies the equation 4x + y = 10
A. Yes B. No
Mathematics