echelon method and let z be the parameter 3x+y-z=0, 2x-y+3z=-7

Find the mean, median, mode and range of the following set of dа ta: 58, 58, 60, 60, 61, 63, 60 10

Your friends parents are worried about going over budget for the month. Which expenses would you suggest is not a need?

Lisa had 1,750 stamps. Minah had 480 stamps fewer stamps than lisa. Lisa gave some stamps to Minah. Now, Minah has 3 times as many stamps as lisa. How many stamps did minah have at first?

Area of a triangle is 15 square meters. the base is 1 meter less then the hieght what is the hieght of the triangle

The following statistics represent weekly salaries at a construction company. Mean $550. First quartile $480 Median $630 third quartile $700 Mode $605.

If the average price of a new one-family home is $246,300 with a standard deviation $15,000, find the minimum price of the houses that a contractor will build to satisfy the middle 80% of the market. Assume that the variable is normally distributed.

The function g (x) = x is transformed to obtain function h. h (x) = g (x-3). Which statement describes how the graph of his different from the graph of g? A. The graph of h is the graph of g horizontally shifted right 3 units. B.

What is the slope of the line passing through (1, 2) and (3, 8) ? slope = 1/7 slope = 1/3 slope = 3 slope = 7

Members of a car sharing program pay a fee of $50 per month plus$ 7.65 for every hours they use a car. a member bill was$ 149.45 last month. how many hours did the customers use a car last month?

A rectangular shaped desk has a length of 25 inches and a width of 18 inches. A desk with a similar shape has a length of 60 inches. What is the width of this desk?