09/12/22
Math question--
Decide whether the pair of lines is parallel, perpendicular, or neither.5x+2y=75x+2y=3
07/21/22
The sum of three numbers are 153. The third number is 4 times the first. The first number is 9 less than the second. What are the numbers?
The sum of three numbers are 153. The third number is 4 times the first. The first number is 9 less than the second. What are the numbers?
07/15/22
Center of Mass of a Plane Region with Constant Mass Density
Let R be the region below the curve y = 4−x^2 to the left of y = 3x and above the x-axis. What is the centroid of the region R?
07/15/22
Find the Area of the region
Sketch the region bounded by the curve 6xe^−x, the x-axis, and x = 3, and find the area of the region. Round your answer to four decimal places.Area =
07/13/22
Apply Newton's Method
Apply Newton's method to f(x)=x^1/3 with x0=1 and calculate x1, x2, x3, and x4. Find a formula |xn|. What happens to |xn| as n→∞? Draw a picture that shows what is going on.Questionscalculate...
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06/09/22
Test Study New Drug Probability
In a study, a new drug is found to be effective in 67% of those who took it. 14% of people in the study overall reported mild side effects (soreness, headache or nausea). Also, of the people for...
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06/09/22
Elk Probability
Twenty elk live in a forest, and 7 were tagged and released. Some time later, 5 elk were randomly caught. Assume all 20 elk were equally likely to be caught. What is the probability that exactly 2...
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06/09/22
Coin Toss Probability
What is the probability that in 7 coin tosses we get exactly 5 heads and 2 tails? Do NOT round.
05/28/22
I don't get it, please explain
You wish to test the following claim (HaHa) at a significance level of α=0.10α=0.10. Ho:μ=51.8Ho:μ=51.8 Ha:μ<51.8Ha:μ<51.8You believe the population is normally distributed, but you...
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05/04/22
Assume that a sample is used to estimate a population proportion p.
Find the margin of error M.E. that corresponds to a sample of size 223 with 62.8% successes at a confidence level of 99.9%.M.E. = %Answer should be obtained without any preliminary rounding....
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05/04/22
Random samples with size 4 are drawn from the population containing the values 14, 19,26,31.48. and 53
A How many possible samples can be drawn? B. Construct the sampling distribution of sample means.C. Solve the variance and the standard deviation of the sampling distribution of the sample means.
04/20/22
Use Lagrange multipliers to find the shortest distance from the point (5, 0, −7) to the plane x + y + z = 1.
Use Lagrange multipliers to find the shortest distance from the point (5, 0, −7) to the plane x + y + z = 1.i need help step by step
03/21/22
This is a Statistics problem based on confidence
An Orlando radio station is interested in knowing the percentage of their listeners who attend their Summer Concert Series. How many listeners would the radio station need to sample to determine...
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03/16/22
A random sample of size 50 is taken from a large population with mean μ=160 and standard deviation σ=18.
A random sample of size 50 is taken from a large population with mean μ=160 and standard deviation σ=18. What is the mean of the sampling distribution of the sample means? What is the standard...
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02/23/22
Computing a Margin of Error: Confidence Interval for a Population Mean
You measure 49 dogs' weights, and find they have a mean weight of 30 ounces. Assume the population standard deviation is 12.2 ounces.Based on this, what is the margin of error associated with a 90%...
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02/10/22
Two fair, six-sided dice are rolled. What is the probability that one die shows a 1 and the other die shows a 6?
Two fair, six-sided dice are rolled. What is the probability that one die shows a 1 and the other die shows a 6?
02/09/22
What is an equation of the line that passes through the points (-4, -1) and (2, 8)?
Please help me. I can't understand this
02/04/22
Find the gauge pressure (in psi) at the bottom of a freshwater swimming pool that is 15.5 ft deep.
01/10/22
What even is a slope?
I imagine slope as the steepness of a line which means that it should probably tell us an angle which the line makes with the positive x axis .But we get a number .WTH does that even mean? What am...
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