In the system - 12c + 3d = 6 and - 3c + 6d = - 9, which expression could you use for substitution?

A. d = - 1/2c - 3/2

B. c=-2d+3

C. c = 1/4d - 1/2

D. d = 4c - 2

Jace gathered the data in the table. He found the approximate line of best fit to be y = - 0.7x + 2.36. What is the residual value when x = 5? -3.14 -0.86 0.86 3.14

Systems of Equations Word Problem: Kristin spent 131.00 on shirts. Fancy shirts cost 28.00 and plain shirts cost 15.00. If she bought a total of 7 then how many of each kind did she buy?

The multiplicative inverse of (-4) ⁻² is (4) ⁻². True False

Sovle the system of linear equations by graphing y=2x-1 y=x+1

At noon, the temperature in Promontory, California was 70°F. By midnight, the temperature had fallen to 40°F. What was the change in temperature over the 12-hour period?

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.