82470000000 scientific notation

Is it possible for two different quadratic functions to share the same zeros? use a graph to justify your response

Solve the following portion 21% of 1,800 is

As the standard error of estimate becomes larger, predictions become:

Find the number a such that the line x = a divides the region bounded by the curves x = (y^2) - 1 and the y-axis into 2 regions with equal area. Give your answer correct to 3 decimal places.

Solve for x. 3/4 - 1/3 = 11 / 4

How do you know that 35x5=5x35 without finding products?

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.