The table shows a relationship between values of x and y. image

Which of the following equations describes the relationship for the values in the table?

A.
y = 2x2 + 1

B.
y = x2 + 3

C.
y = 2x2 – 1

D.
y = 10x – 3

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm