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

11 times as many brushes. If they have 60 brushes altogether?

A website company charges $900 for developing a website and $150 for annual maintenance. What are the total fees for building a new website and maintaining it for 3 years? A $1050 B $1250 C $1300 D $1350

243.875 to the nearest tenth, hundredth, ten, and hundred

Based on the 2010 census, the population of Georgia was 9.6 x 10^6 people. Which state had a larger population? A. Alaska: 7.1 x 10^5 B. New York: 1.9 x 10^7 C. Wyoming: 5.6 x 10^5 D. Idaho: 1.5 x 10^6

how would you translate this into an equation one third of the number is 12 less than the number itself

A sample of 49 observations is taken from a normal population. the sample mean is 55, and the sample standard deviation is 10. determine the 99 percent confidence interval for the population mean.

How many meter of cloth is needed if Aling Luding to make 25 pillowcase if each pillowcase needs 95 cm long cloth?

A planet's radius is approximately 1,534 mi. About two-thirds of the planet's surface is covered by water. Enter an estimate for the land area on the planet. Round the answer to the nearest million.

Of 259 employees selected randomly from one company, 9.27% of them commute by carpooling. use this data to construct a 90% confidence interval for the true percentage of all employees of the company who carpool.

Ushers divided the concert program into 5 equal stacks. each stack had 7246 programs. how many pragrams were there in all?