Are the lines y = - x - 4 and 5x + 5y = 20 perpendicular? Explain.

An experiment is set up to study the weights of 35 mice after they are injected with a drug. The population mean is 23.50 grams with a standard deviation of 3.40 grams. The standard error of the sample mean is __.

Which statement describes the graph and system of equation? 5y-2x=5 2y+x=-4 a. consistent and independent b. inconsistent c. coincident d. not enough information

What can be said about the cardinalities of the sample spaces of the events below? Event A: Drawing a card from a standard deck of playing cards Event B: Rolling a standard number cube A.

The music for Nadia's dance routine lasts for exactly 4 minutes. When Nadia dances her routine, she starts with her music and finishes 12 seconds before the music ends. What percent of the time the music is playing is Nadia dancing? and ...

3897 rounded to nearest ten

3) show work, Use a form of d=rt to solve. Steven's kite rose into the air at the rate of 5 fee per second. How many feet did it rise in 2/3 minute?

A number is shown in word form. ''Thirty-nine thousand, three hundred fifty three" What is the number is standard form?

What is the ratio 28 : 35 written in lowest terms?

A line segment can "grow" from which of the following?

What is the sample space when a coin is tossed twice? a) (H, T) b) (HH, HT) c) (HH, TT, TH) d) (HH, HT, TT, TH)