1Determine the vertex of the quadratic function f(x) = (x - 3)^2 +7. Please give detailed steps!! thank you

One positive number is 9 more than twice another. if their product is 95, find the numbers

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?

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.