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The number n of aluminum cans used each year is directly proportional to the number of people using the cans. if 250 people use 60,000 cans in one year, how many cans are used each year in dallas, which has a population of 1,008,000.
General
5 months ago
If a data set has ssr = 400 and sse = 100, then the coefficient of determination is
General
5 months ago
On a recent trip, sarah's car traveled 20 mph faster on the first 110 miles than it did on the remaining 80 miles. the total time for the trip was 4 hr. find the speed of sarah's car on the first part of the trip.
General
5 months ago
A hose fills a hot tub at a rate of 3.45 gallons per minute. How many hours will it take to fill a 280 -gallon hot tub?
General
5 months ago
If the length of a rectangle is a two-digit number with identical digits and the width is 1/10 the length and the perimeter is 2 times the area of the rectangle, what is the the length and the width
General
5 months ago
The lenght of a rectangle is twice its width. The area of the rectangle is 18 square centimeters. Find the perimeter of the rectangle?
General
5 months ago
In a study of 38% of adults questioned reported that their health was excellent. a researcher wishes to study the health of people living close to a nuclear power plant. find the probability that when 11 adults are randomly selected, at most 3 are in excellent health
General
5 months ago
Find the area of the surface. the part of the surface z = 9 + 5x + 2y2 that lies above the triangle with vertices (0, 0), (0, 1), (2, 1).
General
5 months ago
Starting at home, ishaan traveled uphill to the grocery store for 121212 minutes at just 151515 mph. he then traveled back home along the same path downhill at a speed of 303030 mph. what is his average speed for the entire trip from home to the grocery store and back?
General
5 months ago
What are the foci of the ellipse given by the equation 100x2 + 64y2 = 6,400?
General
5 months ago
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