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pt06
pt06
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MATH SOLVE
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Find the polar coordinates for the point whose rectangular coordinates are (3,4). 6. Convert y x2 to polar form.
General
4 months ago
A manufacturer of rechargeable laptop batteries markets its batteries as having, onaverage, 500 charges. A consumer group decides to test this claim by assessing thenumber of times 30 of their laptop batteries can be recharged and finds the average is 497, with a standard deviation of 10.The resulting p-value is .1111; thus, the null hypothesis is not rejected. The consumer group concludes that the manufacturer.
General
4 months ago
1. What is the value of sqrt(63) * cube root of 56 * 7^(1/6)I know the answer is 42, but I don't know how to solve it!
General
4 months ago
c) If an initial investment of $ 35,000 grows to $257,000 in 15 years, what annual interest rate, continuously compounded, was earned?
General
4 months ago
What is the GRM for a residential duplex with a selling price of $234,000 if the monthly rent for each unit is $925? A. l.054 B. 10.54 C. 126.5 D. 252.9 Answer is C. 126.5
General
4 months ago
A million years ago, an alien species built a vertical tower on a horizontal plane. When they returned they discovered that the ground had tilted so that measurements of 3 points on the ground gave coordinates of (0, 0, 0), (1, 2, 0), and (0, 2, 1). By what angle does the tower now deviate from the vertical?
General
4 months ago
WILL GIVE BRAINLIEST(this is a long answer)If trapezoid JKLM is reflected over the x-axis, what do you notice about the ordered pairs of the original figure and the ordered pairs of its reflection over the x-axis?
General
4 months ago
2. Susan is starting a change jar. She putsin $0.25 each week. The table showshow much money is in her jar at theend of each week. Complete the tableto find out how much she will haveafter 10 weeks. What patterns do younotice in the table?
General
4 months ago
9) A health insurance policy costs $700 per year. plus $15 for each visit to the doctor's office.A different plan costs $560 per year, but each office visit is $50. Find the number of office visitsfor which the two plans have the same total cost.
General
4 months ago
Please help!!A. Use composition to prove whether or not the functions are inverse of each otherB. Express the domain of the compositions using interval notation.
General
4 months ago
Solve for x. (x - 4)(x -4) = 0A. -16B. -4C. 4D. 16
General
4 months ago
Suppose f(x,y)=xy, P=(−4,−4) and v=2i+3j. A. Find the gradient of f. ∇f= i+ j Note: Your answers should be expressions of x and y; e.g. "3x - 4y" B. Find the gradient of f at the point P. (∇f)(P)= i+ j Note: Your answers should be numbers C. Find the directional derivative of f at P in the direction of v. Duf= Note: Your answer should be a number D. Find the maximum rate of change of f at P. Note: Your answer should be a number E. Find the (unit) direction vector in which the maximum rate of change occurs at P. u= i+ j Note: Your answers should be numbers
General
4 months ago
William, a chef, claims that his meatball weight is not equal to 3 ounces, on average. Several of his customers do not believe him, so he decides to do a hypothesis test, at a 1% significance level, to persuade them. He cooks 19 meatballs. The mean weight of the sample meatballs is 2.9 ounces. William knows from experience that the standard deviation for his meatball weight is 0.5 ounces. H0: μ=3; Ha: μ≠3 α=0.01 (significance level) What is the test statistic (z-score) of this one-mean hypothesis test, rounded to two decimal places? Provide your answer below:
General
4 months ago
PLEASE PLEASE PLEASE help with this, I would very much appreciate it!(Geometry)
General
4 months ago
Shell lengths of sea turtles. Refer to the Aquatic Biology (Vol. 9, 2010) study of green sea turtles inhabiting the Grand Cayman South Sound lagoon, Exercise 2.85 (p. 97). Researchers discovered that the curved carapace (shell) length of these turtles is approximately normally distributed with mean 55.7 centimeters and standard deviation 11.5 centimeters. a. The minimum and maximum size limits for captured turtles in the legal marine turtle fishery are 40 cm and 60 cm, respectively. How likely are you to capture a green sea turtle that is considered illegal? b. What maximum limit, L, should be set so that only 10% of the turtles captured have shell lengths greater than L?
General
4 months ago
The sale of eggs that are contaminated with salmonella can cause food poisoning among consumers. A large egg producer takes a SRS of 200 eggs from all the eggs shipped in one day. The laboratory reports that 11 of these eggs had salmonella contamination. Unknown to the producer, 0.2% (two-tenths of one percent) of all eggs shipped had salmonella. In this situation: A) 0.2% is a parameter and 5.5% is a statistic. B) 5.5% is a parameter and 0.2% is a statistic. C) both 0.2% and 5.5% are statistics. D) both 0.2% and 5.5% are parameters. E) 0.2% is a parameter and 5.5% is unrelated to the problem.
General
4 months ago
The 2015 American Time Use survey contains data on how many minutes of sleep per night each of 10,900 survey participants estimated they get. The times follow the Normal distribution with mean 529.9 minutes and standard deviation 135.6 minutes. An SRS of 100 of the participants has a mean time of x¯=514.4 minutes. A second SRS of size 100 has mean x¯=539.3 minutes. After many SRSs, the values of the sample mean x¯ follow the Normal distribution with mean 529.9 minutes and standard deviation 13.56 minutes.(a) What is the population?A. The population is 135.6 million respondents to the American Time Use Survey.B. The population is the 100 participants in the SRS.C. The population is the 10,900 respondents to the American Time Use Survey.D. The population is all Americans who sleep through the night.
General
4 months ago
A store offers customers a 30 % discount on the price x of selected items. Then, the store takes off an additional 15 % off at the cash register. Write a price function P ( x ) that computes the final price of the item in terms of the original price x .
General
4 months ago
The density of granite is about 2.75 grams per cubic centimeter. Suppose you have a granite countertop for a kitchen that is 1 meter wide, 3 meters long, and 4 centimeters thick. Which of the following equations will give you its mass, in kilograms?a. 2.75 g/cm^3 × 1m × 3m x (100cm/1m)^2 × 4cm × 1kg/1000gb. 2.75 g^3/cm^3 × 1m × 3m × (100cm/1m)^2 × 4cm × (1kg/1000g)^3c. 2.75 g/cm^3 × 1m × 3m × 4cm × 1000g/1kgd. 2.75 g/cm^3 × 1m × 3m × 4cm × 1kg/1000ge. 2.75 g/cm^3 × 1m × 3m × (1m/100cm)^2 × 4cm × 1kg/1000gf. 2.75 g/cm^3 × 1m × 3m × 4cm × 1m/100 cm × 1kg/1000g
General
4 months ago
Kent can cut and split a cord of wood twice as fast as Brent can. When they work together , it takes them 4hr. How long would it take each of them to do the job alone
General
4 months ago
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