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MATH SOLVE
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The lengths of plate glass parts are measured to the nearest tenth of a millimeter. The lengths are uniformly distributed with values at every tenth of a millimeter starting at 590.1, and continuing through 590.8. Determine the mean and variance of the lengths. (a) mean (in tenths of millimeters) Round your answer to two decimal places (e.g. 98.76). (b) variance (in tenths of millimeters2) Round your answer to three decimal places (e.g. 98.765). (a)
General
2 months ago
Use the drawing tool(s) to form the correct answer on the provided number line.An internet service provider is implementing a new program based on the number of connected devices in each household. Currently, customers are charged a flat rate of $175 per month. The new plan would charge a flat rate of $94 plus an additional $4.50 per device connected to the network. Find and graph the number of devices, x, for which the cost of the new plan is less than the current plan.
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2 months ago
Triangle ABCis similar to triangle DEF. The length of AC¯¯¯¯¯ is 12 cm. The length of BC¯¯¯¯¯ is 18 cm. The length of DF¯¯¯¯¯ is 10 cm.What is the length of EF¯¯¯¯¯?
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2 months ago
It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minutes per day that people spend standing or walking. Among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately Normally distributed with mean 371 minutes and standard deviation 65 minutes. The mean number of minutes of daily activity for lean people is approximately Normally distributed with mean 528 minutes and standard deviation 108 minutes. A researcher records the minutes of activity for an SRS of 6 mildly obese people and an SRS of 6 lean people.Use z-scores rounded to two decimal places to answer the following:What is the probability (Image for It appears that people who are mildly obese are less active than leaner people. One study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? What is the probability (Image for It appears that people who are mildly obese are less active than leaner people. One study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?
General
2 months ago
HELP!!! I NEED AN ANSWER SOON!!!!! FIRST TO ANSWER WILL GET BRAINLIEST!!!!!!!!!!! THANKS IN ADVANCE!!!!!!!!!
General
2 months ago
A cylinder has a radius of 10 cm and a height of 9 cm. A cone has a radius of 10 cm and a height of 9 cm. Show that the volume of a cylinder is three times the volume of the cone. someone help me out
General
2 months ago
A survey found that women's heights are normally distributed with mean 63.9 in. and standard deviation 3.6 in. The survey also found that men's heights are normally distributed with mean 69.7 in. and standard deviation 3.6 in. Consider an executive jet that seats six with a doorway height of 55.9 in. Complete parts (a) through (c) below. a. What percentage of adult men can fit through the door without bending? The percentage of men who can fit without bending is 0.02%. (Round to two decimal places as needed.) b. Does the door design with a height of 55.9 in. appear to be adequate? Why didn't the engineers design a larger door?
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2 months ago
Two types of survey questions are open questions and closed questions. An open question allows for any kind of? response; a closed question allows for only a fixed response. An open question and a closed question with its possible choices are given below. List the advantages and disadvantages of each question.Open? question: What can be done to get students to eat healthier? foods?Closed? question: How would you get students to eat healthier? foods?1. Mandatory nutrition course2. Offer only healthy foods in the cafeteria and remove unhealthy foods3. Offer more healthy foods in the cafeteria and raise the prices on unhealthy foods
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2 months ago
The time required for an automotive center to complete an oil change service on an automobile approximately follows a normal distribution, with a mean of 17 minutes and a standard deviation of 2.5 minutes. (a) The automotive center guarantees customers that the service will take no longer than 20 minutes. If it does take longer, the customer will receive the service for half-price. What percent of customers receive the service for half-price? (b) If the automotive center does not want to give the discount to more than 5% of its customers, how long should it make the guaranteed time limit?
General
2 months ago
Assume that the readings on the thermometers are normally distributed with a mean of 0 degrees and standard deviation of 1.00degreesC. Assume 2.8% of the thermometers are rejected because they have readings that are too high and another 2.8% are rejected because they have readings that are too low. Draw a sketch and find the two readings that are cutoff values separating the rejected thermometers from the others.
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2 months ago
Solve the following system. Please show me how you did it.
General
2 months ago
***URGENT*** ***50 POINTS***If you do answer, please provide an explanation because I want to know how to solve these problems for the future and not just have the answer without an explanation.
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2 months ago
To which subsets of the real numbers does 2 radical 2 belong?(a) Naturalb) Wholec) Irrationald) Integerse) Rational
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2 months ago
HELP ASAP!!! IM BEING TIMED. Use synthetic division to test one potential root. Enter the numbers that complete the division problem.
General
2 months ago
A (5, 3), B (2, 1), and C (-2, 4) are the coordinates of a triangle's vertices. If the triangle is reflected over the x-axis, what are the coordinates of the image?
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2 months ago
find the exact value of sin 105 degrees
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2 months ago
which of the following recursive formulas represent the same arithmetic sequence as the explicit formula an=5+(n-1)2a. a1=5an=an-1+2b. a1=5an=(an-1+2)5c. a1=2an=an-1+5d. a1=2an=an-1*5
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2 months ago
One of our brainliest, Konrad509, made this:Solve for the numeral base [tex]x[/tex] in:[tex]\frac{B_x\sqrt{74_x}}{1D_x}+J_x51_x=4G3_x[/tex].
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2 months ago
One x-intercept for a parabola is at the point(2,0). Use the quadratic formula to find theother x-intercept for the parabola defined bythis equation:y = 4x2 - 4x – 8
General
2 months ago
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!Harry and Larry are having a barbecue dinner. The probability of Harry staining his shirt during the dinner is 1/5. The probability of Larry staining his shirt during the dinner is 15%.Which of these events is more likely?Choose 1 answer:(Choice A)Harry stains his shirt during the dinner.(Choice B)Larry stains his shirt during the dinner.(Choice C)Neither. Both events are equally likely.
General
2 months ago
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