03/02/22

math on freckle

A delivery person has two packages. The first package weighs 4 pounds, 7 ounces and the second package weighs 3 pounds, 15 ounces.How many more ounces does the first package weigh?
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03/02/22

If cos ⁡x=−1/2, and 90°<x<180°, find cos x/sin x
Please I need a Step by step procedure of this calculation accordingly, it's urgent Simply stated and not too complicated Thanks
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03/01/22

Statistics question
A national achievement test is administered annually to 3rd graders. The test has a mean score of 100 and a standard deviation of 7. If James z - score is 1.20and John got 84on the test answer the... more
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03/01/22

ssr=7,296.14 and sse=285.07, compute r^2
how would i do this problem?
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03/01/22

The standard error of sample mean is
The standard error of the sample mean isA.) the standard deviation of the means of randomly drawn samples from the population.B.) the range of values above and below the sample statistic in a... more
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02/28/22

the width is 7ft and the perimeter is 32 ft
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02/28/22

a=2 b=4 please corect me if i am wrong
Quadrilateral PQRS is shown.What must the values of a and b be for PQRS to be a parallelogram?a = b = 
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02/28/22

Select all the statements that are true about square EFGH.
Select all the statements that are true about square EFGH.A, FP=2 (EG)B, EP=EHC, m<EFH=45D, FH ⊥ EGE, GP=HP
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02/28/22

what is the z value ?
Based on historical data, your manager believes that 30% of the company's orders come from first-time customers. A random sample of 115 orders will be used to estimate the proportion of first-time... more
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02/28/22

What is the probability that the sample proportion is greater than 0.26?
Based on historical data, your manager believes that 27% of the company's orders come from first-time customers. A random sample of 56 orders will be used to estimate the proportion of first-time... more
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02/28/22

If n=15, x-bar=32, and s=6 find the margin of error at a 80% confidence level

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02/27/22

A diner has collected data about customer coffee-drinking habits. They have calculated that P(cream)=0.5, P(sugar)=0.6, and P(cream or sugar)=0.7. What is P(cream and sugar).
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02/27/22

Shuffle music bt 3
Charles has three songs on a playlist. Each sing is by a different artist. The artists are cardi b, post malone, and taylor swift. He programs his player to play the songs in a random order,without... more
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02/26/22

The question is in the description.
A telephone pole is 54 feet tall. A guy wire runs 79 feet, from point A at the top of the telephone pole, to the ground at point B. The base of the telephone pole is at point C. Triangle ABC is a... more
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02/26/22

A manufacturing machine has a 50% defect rate. If 102 items are chosen at random, answer the following.
What is the probability that exactly 47 of them are defective?What is the probability that less than 47 of them are defective?What is the probability that more than 47 of them are defective?What is... more
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02/26/22

Help me find the sample variance of 5, 12, 13?
Calculate the sample variance, s2, of the set of numbers.(5, 12, 13) Enter all eight responses as integers.
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02/26/22

Statistics Probability function
A test consists of 5 questions. there are 4 answers for each question of which only one is correct. Assume that a student randomly guesses each question. determine the probability function for X,... more
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02/25/22

What is the ratio of 4 feet to 31 inches ?
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02/25/22

Geometry Chapter 3
Write an equation of the line that passes through the point (-5, 2) and is parallel to y = 2x - 3 *1 pointa. y = 2x + 12b. y = 2x - 1/2c. y = -1/2x + 12d. y = -1/2x - 1/2
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02/24/22

True or false. To have a binomial setting, the following must be true: When sampling, the population must be at least 20 times as large as the sample size. (Some textbooks say 10 times as large.)
I originally believed the answer was false. I thought sampling could be done with replacement. So, the condition, which is only necessary for when the trails are not independent, is not a must to... more
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02/24/22

Can someone explain the steps to solve
The object below was by placing a cone on top of a cylinder. The base of the cone is congruent to the base of the cylindercone = 3cm heightcylinder = 10cm heightCylinder = 4cm radiusWhat is the... more
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02/24/22

what do i do. i dont understand
on the first day of ticket sales the school sold 3 senior citizen and 9 children tickets for a total of 75. the school took in 67 on the second day by selling 8 senior citizens and 5 child tickets.... more
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02/23/22

In one large city, 37% of all voters are Democrats. If two voters are randomly selected for a survey, find the probability that at most one voter selected is a Democrat.
Use the appropriate multiplication rule to find the indicated probability.In one large city, 37% of all voters are Democrats. If two voters are randomly selected for a survey, find the probability... more
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02/23/22

Find the length s of the arc of a circle of radius 55 inches subtended by the central angle 78*
Radius is 55 inches, subtended by 78 degrees
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02/23/22

In a large school, it was found that 64% of students are taking a math class, 78% of student are taking an English class, and 56% of students are taking both.
A: Find the probability that a randomly selected student is taking a math class or an English class. Write your answer as a decimal, and round to 2 decimal places if necessary.B: Find the... more
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