Which relation is quadratic?
a. y = x^2 - x^2 + 4x + 2
b. y = (2x^2)(x + 1)
c. y = (x + 5)^2
d. y = 2x - 6x + 3

Can someone answer this question for me

Apolice office claims that the proportion of people wearing seat belts is less than 65%. to test this claim, a random sample of 200 drivers is taken and its determined that 126 people are wearing seat belts. the following is the setup for this hypothesis test: h0: p=0.65 ha: p< 0.65 find the p-value for this hypothesis test for a proportion and round your answer to 3 decimal places.

Use the chart to multiply the binomial by the trinomial. what is the product? y3 + 27 y3 – 27 y3 – 6y2 + 27 y3 + 6y2 + 27