John R.

06/02/24

Conservation of Energy

In order for Jane to return to base camp, she needs to swing across a river of width D that is filled with alligators. She must swing into a wind exerting constant horizontal force F, on a vine... more

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Math Algebra 1 Algebra 2

03/12/23

A cup of coffee has cooled from 98°C to 60°C after 10 minutes in a room at 23°C. How long will it take to cool to 30°C?

A cup of coffee has cooled from 98°C to 60°C after 10 minutes in a room at 23°C. How long will it take to cool to 30°C?It will take approximately __ minutes.(Round to three decimal places... more

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Math Algebra 1 Algebra 2

03/12/23

Describe the graph of the function in terms of a basic trigonometric function. Locate the vertical asymptotes and graph two periods of the function. h(x)=sec12x

Describe the graph of the function in terms of a basic trigonometric function. Locate the vertical asymptotes and graph two periods of the function. h(x)=sec12xUse transformations to describe how... more

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Answers •1

Statistics Probability

03/12/23

Suppose you have 5 textbooks - 2 math (Calculus and Prob & Stats), and 3 engineering (EE, ME, and CE).

(a) In how many ways can the books be arranged on a shelf? (b) In how many ways can the books be arranged on a shelf if the math books should be to the left of the engineering books? (c) If you... more

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Statistics

03/12/23

A byte is a sequence of eight bits, where each bit is either 0 or 1. How many different bytes are there?

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Statistics

03/12/23

not understanding how you do this could you explain please!

The following table presents the time taken to review articles that were submitted for publication to the journal Technometrics during a recent year. A few articles took longer than 9 months to... more

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Math Physics Mechanical Engineering

08/12/20

How to determine the best position to secure the rubber band on a launching arm?

I apologize if I'm not being specific, but part of a project I have requires me to calculate and explain how to find the best position to secure the rubber band on the launching arm of a DIY... more

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Calculus

07/26/20

Suppose the percentage of drivers using seat belts from 2001 through 2009 is modeled by the function

f(t) = 71.9(t + 1)0.051where t is measured in years, with t = 0 corresponding to the beginning of 2001. What was the average percentage use of this device over the period from the beginning of 2001... more

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Statistics

06/28/20

Stats homework please help

1.Find the 𝑃 −value for the indicated hypothesis test for a population proportion with the given standardized test statistic (𝑧 −score).Two-tailed test, 𝑧 = 2.13(a) 0.0166 (b) .0332 (c) 0.0083 (d)... more

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Calculus

06/21/20

Find dx/dt at 1

Find dx/dt at x=1 if y=5x^2+5 and dy/dt=3.

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Answers •2

Geometry

06/04/20

What’s a relationship in geometry?

D is (1,5) E is (7,-3) F is (4,1) and G is (12,7) Determine the relationships between DE and FG. (With a line above DE and a line above FG).

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Calculus

05/05/20

What is the area of the region bounded by the two curves: y = x^2 and y = |x|

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Calculus

05/05/20

Use two rectangles of equal width to estimate the area between the graph of f(x) = x + cos(πx) and the x-axis on the interval [2, 6].

Use two rectangles of equal width to estimate the area between the graph of f(x) = x + cos(πx) and the x-axis on the interval [2, 6]. Evaluate the function at the mid-point of each rectangle to... more

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Chemistry

05/04/20

What is the reactant acid in the following reaction

NH3 (aq) + H2O (l) --> NH4+ (aq) + OH- (aq) ?

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Calculus Functions

05/04/20

Interest rate math question

When you were born, a generous family member decided to invest $1000 for you. If the average rate of return (interest rate) was 7% per year. How much will it be worth after 18 years if it is... more

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Chemistry

03/19/20

What is the theoretical yield of BaSO4 for 1.25g if barium nitrate

A student combines 1.25g of barium nitrate with an excess excess of sodium sulfate in order to make barium sulfate. What is the theoretical yield of BaSO4 for this reaction? the balance equation is... more

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Answers •1

Chemistry

03/19/20

What volume of a 2.70 M KI stock solution would you use to make 0.445 L of a 1.25 M KI solution?

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Answers •2

Calculus

02/27/20

Calculus population growth formula

A major corporation is building a 4,325 acre complex of homes, offices, stores, schools, and churches in the rural community of Glen Cove. As a result of this development, the planners have... more

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Trigonometry

10/15/19

Trigonometry - SOHCAHTOA - Pythagoras

A yacht is moored to the side of a quay by a rope 3 metres long. The rope is tied to the yacht at R and the quay at T.At low tide, when the yacht is as far away from the quay as possible, the rope... more

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Probability

10/15/19

What is the question want? Do i need to do a Binomial Law for the j and then plot the CDF?

Given an experiment that follows Binomial Law, b(k, 10; 0.2). Define the RV X by 𝑋(𝑘) = { 0; 0 ≤ 𝑘 ≤ 2 1; 2 < 𝑘 ≤ 5 2; 5 < 𝑘 ≤ 7 3; 7 < 𝑘 ≤ 10 Compute the probabilities P[X = j] for j = 0,... more

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Math Statistics

06/13/19

Someone criticizes the study saying "we can’t tell if additional sales were due to the poster." Is this a valid criticism of the study?

record company would like to see if sending out posters of a popular artist can generate orders for the artist's records. They choose a large sample of potential customers and randomly send half of... more

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Probability

05/25/19

Probability spinner

Hi, i have a question about a probability spinner i really need help with, this is it:A spinner is made using the colours listed on the probability scale below- (I will type out the numbers because... more

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Math Physics

05/25/19

Determine number of nucleons which can be packed within a nucleus of given size.

Forces caused by binding energy of quarks (sub-nucleonic particles) hold protons and neutrons together in atom’s nucleus (core). Binding energy of a quark pair is in excess of 300 MeV (million... more

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Linear Algebra

05/25/19

What's the use of matrices in real life?

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Math Calculus

05/24/19

ind a vector parametrization of the circle of radius 5 in the xy-plane, centered at the origin, oriented clockwise. The point (5,0) should correspond to t=0. Use t as the parameter in your answer.

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Answers •1

Conservation of Energy

A cup of coffee has cooled from 98°C to 60°C after 10 minutes in a room at 23°C. How long will it take to cool to 30°C?

Describe the graph of the function in terms of a basic trigonometric function. Locate the vertical asymptotes and graph two periods of the function. h(x)=sec12x

Suppose you have 5 textbooks - 2 math (Calculus and Prob & Stats), and 3 engineering (EE, ME, and CE).

A byte is a sequence of eight bits, where each bit is either 0 or 1. How many different bytes are there?

not understanding how you do this could you explain please!

How to determine the best position to secure the rubber band on a launching arm?

Suppose the percentage of drivers using seat belts from 2001 through 2009 is modeled by the function

Stats homework please help

Find dx/dt at 1

What’s a relationship in geometry?

What is the area of the region bounded by the two curves: y = x^2 and y = |x|

Use two rectangles of equal width to estimate the area between the graph of f(x) = x + cos(πx) and the x-axis on the interval [2, 6].

What is the reactant acid in the following reaction

Interest rate math question

What is the theoretical yield of BaSO4 for 1.25g if barium nitrate

What volume of a 2.70 M KI stock solution would you use to make 0.445 L of a 1.25 M KI solution?

Calculus population growth formula

Trigonometry - SOHCAHTOA - Pythagoras

What is the question want? Do i need to do a Binomial Law for the j and then plot the CDF?

Someone criticizes the study saying "we can’t tell if additional sales were due to the poster." Is this a valid criticism of the study?

Probability spinner

Determine number of nucleons which can be packed within a nucleus of given size.

What's the use of matrices in real life?

ind a vector parametrization of the circle of radius 5 in the xy-plane, centered at the origin, oriented clockwise. The point (5,0) should correspond to t=0. Use t as the parameter in your answer.

Still looking for help? Get the right answer, fast.

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John R.

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Rosetta Stone

Education.com

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Emmersion

Conservation of Energy

A cup of coffee has cooled from 98°C to 60°C after 10 minutes in a room at 23°C. How long will it take to cool to 30°​C?

Describe the graph of the function in terms of a basic trigonometric function. Locate the vertical asymptotes and graph two periods of the function. ​h(x)=sec12x

Suppose you have 5 textbooks - 2 math (Calculus and Prob & Stats), and 3 engineering (EE, ME, and CE).

A byte is a sequence of eight bits, where each bit is either 0 or 1. How many different bytes are there?

not understanding how you do this could you explain please!

How to determine the best position to secure the rubber band on a launching arm?

Suppose the percentage of drivers using seat belts from 2001 through 2009 is modeled by the function

Stats homework please help

Find dx/dt at 1

What’s a relationship in geometry?

What is the area of the region bounded by the two curves: y = x^2 and y = |x|

Use two rectangles of equal width to estimate the area between the graph of f(x) = x + cos(πx) and the x-axis on the interval [2, 6].

What is the reactant acid in the following reaction

Interest rate math question

What is the theoretical yield of BaSO4 for 1.25g if barium nitrate

What volume of a 2.70 M KI stock solution would you use to make 0.445 L of a 1.25 M KI solution?

Calculus population growth formula

Trigonometry - SOHCAHTOA - Pythagoras

What is the question want? Do i need to do a Binomial Law for the j and then plot the CDF?

Someone criticizes the study saying "we can’t tell if additional sales were due to the poster." Is this a valid criticism of the study?

Probability spinner

Determine number of nucleons which can be packed within a nucleus of given size.

What's the use of matrices in real life?

ind a vector parametrization of the circle of radius 5 in the xy-plane, centered at the origin, oriented clockwise. The point (5,0) should correspond to t=0. Use t as the parameter in your answer.

Still looking for help? Get the right answer, fast.

OR

John R.

A cup of coffee has cooled from 98°C to 60°C after 10 minutes in a room at 23°C. How long will it take to cool to 30°C?

Describe the graph of the function in terms of a basic trigonometric function. Locate the vertical asymptotes and graph two periods of the function. h(x)=sec12x