Use substitution to solve the system of equations. Pick two equations to solve. 1. x - 2y + 3z = 7
2x + y + z = 4
-3x + 2y – 2z = -1

Solution:

2. 2x + 2y + 2z = 2
x + 2y + 3z = 8
3x + 4y + z = 2

Solution:

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

Which is the scale factor proportion for the enlargement shown?

Of jk j(–25, 10) k(5, –20). is y- of l, jk a 7: 3 ? a. –16 b.–11 c. –4 d.–1