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A sanitation department is interested in estimating the mean amount of garbage per bin for all bins in the city. In a random sample of 40 bins, the sample mean amount was 51.5 pounds and the sample standard deviation was 3.6 pounds. Construct 95% and 99% confidence intervals for the mean amount of garbage per bin for all bins in the city.What is the lower limit of the 95% interval? Give your answer to three decimal places.
General
4 months ago
The altitude of a triangle is increasing at a rate of 1.5 cm/min while the area of the triangle is increasing at a rate of 5 square cm/min. At what rate is the base of the triangle changing when the altitude is 9 cm and the area is 81 square cm?
General
4 months ago
it takes 1 hour longer to fly to st paul at 200 mi/h than it does to return at 250 mi/h. How far away is st.paul
General
4 months ago
Evaluate the following integral over the specified region. Assume (r comma theta )(r,θ) are polar coordinates. ModifyingBelow Integral from nothing to nothing Integral from nothing to nothing With Upper R StartFraction dA Over (16 plus x squared plus y squared )squared EndFraction∫∫R dA 16+x2+y22; Upper R equals StartSet (r comma theta ): 1 less than or equals r less than or equals 3 comma 0 less than or equals theta less than or equals pi EndSetR={(r,θ): 1≤r≤3, 0≤θ≤π} M
General
4 months ago
simplify the rational expression t^2=2t-24/t^2-36 and state any restrictions on the variable
General
4 months ago
HELP??The next model of a sports car will cost 12.2% less than the current model. The current model costs $59,000. How much will the price decrease in dollars? What will be the price of the next model?Decrease in price _____Price of next model____
General
4 months ago
What are some benefits of solving equations graphically? What are some limitations?
General
4 months ago
Given h(x) = |x + 2| − 3 and ????(x) = −|x| + 4:a. Describe how to obtain the graph of ???? from the graph of a(x) = |x| using transformations.b. Describe how to obtain the graph of h from the graph of a(x) = |x| using transformations.
General
4 months ago
Z = ma for a please help
General
4 months ago
what is the equation of the line described below written in slope-intercept form the line passing through the point (-1,5) and parallel to the line whose equation is x + y = 10y=x-4y=x+4y=-x+4
General
4 months ago
Nders, Cones, and SpheresThe radius of a sphere is 3 inches. Which represents the volume of the sphere?12 cubic inches36.2 cubic inches647 cubic inches817 cubic inchesTIME REM55:20
General
4 months ago
You rotate a triangle 90° counterclockwise about the origin. Then you translate its image 1 unit left and 2 units down. The vertices of the final image are (-5,0),(-2,2) and (-2,-1) . What are the vertices of the original triangle?
General
4 months ago
it takes one fourth of a gallon of paint covers one fifth of a car how much paint covers the whole car
General
4 months ago
The measure of the supplement of an angle is 60 degrees less than four times the measure of the complement of the angle. Find the measure of the angle
General
4 months ago
If 8 cases of merchandise cost 60$, what would a dozen cases cost?
General
4 months ago
Complete the square to determine the minimum or maximum value of the function defined by the expression.x2 − 10x + 15A) maximum value at −10 B) minimum value at −10 C) maximum value at −15 D) minimum value at −15
General
4 months ago
10. The area of Kaitlyn's square garden is 175 square feet. What is the measure of each sideof the garden to the nearest tenth? Support your answer.
General
4 months ago
Jenny drew a figure in art class. Does it have rotational symmetry? If yes, what is the angle of rotation.
General
4 months ago
Find the annual rate of interest. Principal = 4600 rupees, Period = 5 years, Total amount = 6440 rupees, Annual rate of interest = __%
General
4 months ago
It takes 12 hours for 7 men to paint a room.How many men would be needed to paint the room in 3 hours?
General
4 months ago
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