Write a matrix to represent the system 2a - 3b = 6
a + b = 2

A.
2 -3 6
1 1 2

B.
2 1 -3
1 6 2

C.
a b 6
a b 2

D.
2a -3b 6
a b 2

Hannah works at the mall selling book bags. she sold 35 book bags in 5 hours. how many book bags did she sell per hour?

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)