03/25/21

A water sprinkler sprays water on a lawn over a distance of 30 feet and rotated through an angle of 135 degrees.
Find the area of the lawn watered by the sprinkler
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03/25/21

At 10am a colony of bacteria begins with 3000 microorganisms. At 4pm, there are 3600 microorganisms. How many are there at 7:30pm?

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03/25/21

Find the zeros of the following polynomial: x^2 - 11x + 24
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03/25/21

Statistics chatper 7 question needs an answer
Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1.If P(−b<z<b)=0.5688, find b.b=
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03/25/21

Indicate in standard form the equation of the line passing through the given points, in the equation box below. A(4, 1), B(5, 2)
equation for standered form Ax+By=C
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03/25/21

AP Stats Questions Pls Help!
Question 1:A new anxiety medication has been manufactured and a study is being conducted to determine whether its effectiveness depends on dose. When 40 milligrams of the medication was... more
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03/25/21

Binomial Probability Distribution

A small airline has a policy of booking as many as 60 persons on an airplane that can seat only 52. (Past studies have revealed that only 76% of the booked passengers actually arrive for the... more
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03/25/21

find cos y and tan y if csc y = -√6/2 and cot y > 0
 Use the Pythagorean identities to find each function value.
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03/25/21

if sec a = -9/7 and tan a = - 4√2/7 , find csc a
Use quotient and reciprocal identities to find the function value.
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03/25/21

hypothesis testing with one sample t-tests

Someone is testing his new method of teaching and wants to see if it is effective. In the last class that he gave a particular exam, he did not use this new teaching method and that class got an... more
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03/25/21

Geometry question

Write the equation of a line that is perpendicular to the line y-2=4(x-1) that goes through point (-4,5)
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03/24/21

Find the confidence interval.
In a simple random sample of n households, the sample mean number of personal computers was 1.32. Assume the population standard deviation is 0.41. Margin of error is computed to be 0.04.Find the... more
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03/24/21

Find the critical value Za/2 needed to construct a confidence interval with 88%.
Find the critical value Za/2 needed to construct a confidence interval with 88%.
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03/24/21

Statistics 227 Question
2) Sec 8.1-8.2: Answer the following topic: To compute confidence interval of MEAN, how to determine whether to use critical value z or t (using normal curve or student's t distribution.) Briefly... more
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03/24/21

Evaluate the logarithmic expression with a calculator using the change of base formula. Round the answer to three decimal places when needed.
log34
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03/24/21

Condense the logarithmic expression using logarithmic properties.
3 log x + 2 log y − log y
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03/24/21

Expand the logarithmic expression using logarithmic properties.
2 log x2y
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03/24/21

Expand the logarithmic expression using logarithmic properties
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03/24/21

Probability question
The Department of Homeland Security wants to test a computer virus that it has developed to combat hackers. They plan to test run the virus on randomly selected computers with pre-set "hacker"... more
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03/24/21

Stats 227 Problem
19. Government workers: The Bureau of Labor Statistics reported that 16% of U.S. nonfarm workers are government employees. A random sample of 50 workers is drawn.a. Is it appropriate to use the... more
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03/24/21

Let X1,X2,...,X12 be independent identically distributed N(3.6,0.70) random variables, with an average X¯. (a) Calculate P(3.2≤X¯≤3.9) (b) Find the value of c for which P(3.6−c≤X¯≤3.6+c)=0.95
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03/24/21

Statistics question
A study was conducted to determine whether there were significant differences between medical students admitted through special programs (such as retention incentive and guaranteed placement... more
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03/23/21

Calculating Mean and Standard Deviation
Two children in the same age group have a doctor's appointment. Child 1 has a weight of 32.1875 lbs and falls at the 39th percentile. Child 2 has a weight of 32.85 lbs and places them at the 46th... more
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03/23/21

Find the measures of the angles of an isosceles triangle where the ratio of the vertex angle to one of the base angles is 1:2.
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03/23/21

Chapter 7 Test A
The length of a rectangle in terms of x is 3x2+7x+9 and the width is 3x+6
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