Jon S.

04/14/20

Help! Can someone help me answer this/ write it as an equation or something?

Last week Carl bought m pounds of potatoes for his restaurant at a cost of y cents per pound. This week he bought n more pounds than last week at a cost that was z cents per pound greater. What was... more

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Algebra 2

04/14/20

Math (quadratic equation)

Write the quadratic equation whose roots are −2 and 1, and whose leading coefficient is 3.

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Algebra 1

04/14/20

Factor the polynomial factoring out the greatest common factor -5t^4+35t^2+10t

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Algebra 1

04/14/20

Product. (2x+3)(3x-4)

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Statistics

04/14/20

help with math hw

People were polled on how many books they read the previous year. Initial survey results indicate that sequals=12.8 books. Complete parts (a) through (d) below.Click the icon to view a partial... more

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Statistics

04/14/20

help with stats hw

A simple random sample of size n is drawn. The sample mean, x is found to be 18.6, and the sample standard deviation, s, is found to be 4.6.Click the icon to view the table of areas under... more

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Statistics

04/14/20

help with math hw

o test Upper H0: muμequals=100 versus Upper H1: muμnot equals≠100, a simple random sample size of equals=24is obtained from a population that is known to be normally distributed. Answer... more

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Geometry

04/14/20

The bird measures 8.5 cm tall in the photo and is actually 46.9 cm tall. Approximately how long is the bird's beak if it measures 1.1 cm in the photo? The beak is nothing cm long.

The bird measures 8.58.5 cm tall in the photo and is actually 46.946.9 cm tall. Approximately how long is the bird's beak if it measures 1.11.1 cm in the photo?The beak is blankcm long.(Round to... more

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Precalculus Trigonometry

04/14/20

I NEED HELP!!!!!!

A political candidate has asked you to conduct a pool to determine what percentage of people support him. If the candidate only wants a 1% margin of error at a 95% confidence level what size of... more

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Statistics

04/13/20

I need this please

. A bookstore has determined that weekly sales of a pop culture magazine can be modeled by an approximately Normal distribution with a mean of 75 copies and a standard deviation of 6 copies.a. For... more

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Probability

04/13/20

what is the probability that she will pick a pen that is not black?

Erica has 5 blue pens, 3 black pens, and 6 red pens in her desk drawer. If she randomly picks a pen from her drawer, what is the probability that she will pick a pen that is not black? *

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Elementary Math Math Help Measurements

04/13/20

Math problem help!!

A store sells two types of freezers. Freezer A costs $350 and measures 2 ft by 2 ft by 4.5 ft. Freezer B costs $480 and measures 3 ft by 3 ft by 3.5 ft. Which freezer is the better buy?show work to... more

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Math Elementary Math Math Help

04/13/20

Math problem help!

A rectangular prism has dimensions of 3m, 8m, and Wm. It’s total surface is 246m². What is W?show work to help thanks!

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Algebra 2

04/13/20

Even vs. Odd Functions

Determine whether each of the following functions is even, odd, or neither.A. f(x) = 2x^4 - 6x^2 + 5x - 15B. f(x) = -4x^7 + 3x^5 + 2x^3 -6xC. f(x) = 8x^4 - 2x^2 +24D. f(x)=10x^3 - 15x^2 -16x +12E.... more

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Algebra 2

04/13/20

Dividing Rational Expressions

What are the coordinates of the holes that would arise from the following multiplication problem? Select all that apply. (3, -2) (3, 2) (2, 1/3) (3, 1/2) (-2, 3)

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Math Sat Math Mathematics

04/13/20

helpppppppppppppp

The sum of three numbers is 117 The second number is 4 times the third. The third number is 9 more than the first. What are the numbers? First number: Second number: Third number:

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Algebra 2

04/13/20

What are the solutions to the system of equations?

y=x2- 5x+6y=-4x+6

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Geometry

04/13/20

The ratio of the perimeters of two similar triangles is 1:3. The area of A larger triangle is 27ft square. What is the area of the smallest triangle?

The scale factor of triangle ABC to triangle DEF is 3/5

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Probability

04/13/20

Have to come to work on time for atleast 80% of the shifts. Noticed 23 out of 35 workers on time. What is the probability that 23 of 35 will come on time if underlying rate is 80%

The captain has set goal for everyone to be on time for atleast 80% of the shifts. In one day there are 35 people working shifts. You noticed 23 of them on time. What is the probability of having... more

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Statistics Probability

04/13/20

A certain antibiotic in known to cure 85% of strep bacteria infections.

A scientist wants to make sure the drug does not lose its potency over time. He treats 100 patients with a 1 year old supply of the antibiotic. Let p* be the proportion of... more

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Statistics

04/13/20

Suppose that E and F are two events and that N(E and F) = 250 and N(E) =440. What is P(F|E)?

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Algebra 1

04/12/20

Alegbra 1 Help .

Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total of 10 people took the trip. She was able to purchase coach tickets... more

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Statistics

04/11/20

help with math hw

A television sports commentator wants to estimate the proportion of citizens who "follow professional football." Complete parts (a) through (c)(a) What sample size should be obtained if he... more

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Help! Can someone help me answer this/ write it as an equation or something?