Identify the number of solutions of the system of linear equations. 4x+5y+3z=11
x−3y+z=6
−2x+6y−2z=−12

no solution

exactly one solution

infinitely many solutions

Question 2
Solve the system. If there are infinitely many solutions, write the ordered triple in terms of y. If there is no solution, leave each box empty.
The solution is (x, y, z) = (
,

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?