The table models the cost, why, of using a high efficiency washing machine and a standard washing machine over X number for years. 1. Which equation represents the cost of the high-efficiency washing machine over a given number of years.

y = 25x + 500
y = 25x + 525
y = 50x + 500
y = 50x + 525

2. Which equation represents the cost of the standard washing machine over a given number of years?

y = 25x + 430
y = 30x + 400
y = 60x + 400
y = 60x + 430

3. After how many years of use would the washing machines cost the same amount?

9 years
10 years
19 years
20 years

4. Which washing machine would be the more practical purchase if kept for 9 years?

-high efficiency machine
-standard machine
-costs would be the same

Evaluate the given expression if m=45 |-3m|

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Name and describe the three most important measures of central tendency. choose the correct answer below. a. the mean, sample size, and mode are the most important measures of central tendency. the mean of a data set is the sum of the observations divided by the middle value in its ordered list. the sample size of a data set is the number of observations. the mode of a data set is its highest value in its ordered list. b. the sample size, median, and mode are the most important measures of central tendency. the sample size of a data set is the difference between the highest value and lowest value in its ordered list. the median of a data set is its most frequently occurring value. the mode of a data set is sum of the observations divided by the number of observations. c. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is the product of the observations divided by the number of observations. the median of a data set is the lowest value in its ordered list. the mode of a data set is its least frequently occurring value. d. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is its arithmetic average. the median of a data set is the middle value in its ordered list. the mode of a data set is its most frequently occurring value.