Cristian M.

Statistics Probability

04/12/21

Express the confidence interval 67.9 % ± 5.9 % in the form of a trilinear inequality.

Express the confidence interval 67.9%±5.9% in the form of a trilinear inequality._% <p< %_

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Math Statistics Probability

04/09/21

A coin was tossed 400 times and head appeared 221 times. Test the hypothesis that the coin is unbiased.

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Differential Equations

04/08/21

Bowling alley charges

The bowling alley charges $4 to rent shoes and $3.50 per hour to bowl. Cristian pays a total of $14.50. What equation can we use to determine how many hours he bowled?

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Calculus

04/08/21

Find the average value of f(x) = 1 ⁄(1 + e ^x) ^3 on the interval [0, ln 2].

Find the average value of f(x) = 1 ⁄(1 + e^ x) ^3 on the interval [0, ln 2].

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Calculus

04/07/21

Calculus Question

Use a calculator to find the area under the curve given byy=16x^2+9between x=0 and x=1. Area:

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Algebra 1 Algebra 2 Polynomials

04/07/21

Find all the zeros of the function f(x)=x^4-5x^3+3x^2+19x-30 if x = -2 and x = 3 are zeros

guys this is the last one and i cant solve it help

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Sat Math

04/07/21

−34 times a number minus 89 is equal to −41 less than the number.

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Algebra 2 Algebra Polynomials

04/07/21

Draw a picture of a polynomial with a degree of 4, that has a2 real zeros and 2 imaginary zeros.

GUYS I REALLY NEED THIS SOONG I have been here for hours

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Calculus

04/07/21

The U.S. population is approximated by the function

P(t) = 616.5/1 + 4.02e^-0.5twhere P(t) is measured in millions of people and t is measured in 30-year intervals, with t = 0 corresponding to 1930. What is the expected population of the United... more

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Geometry

04/07/21

Prove the Following:

Given the figure with MK=MG and HK=HGProve: ∠G ≅ ∠K

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Algebra 2 Probability

03/14/21

Word Problem Probability

Jackson can strangely guess the height and weight of people. The probability that he correctly guesses a person's height is 2/3, and the probability that he can correctly guesses a person's weight... more

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Linear Algebra Linear Equations

03/13/21

Linear Algebra Problem Solving

A class of 32 students was made up of people who were all 18, 19 and 20 years old. The average of their ages was 18.5. How many of each age bracket were in the class if the number of 18-year-olds... more

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Test Preparation Geometry Statistics

03/10/21

Please help me, I really dont know the answer.

X is a normally distributed random variable with mean 85 and standard deviation 17. What is the probability that X is less than 55? (A) .0338(B) .0388(C) .0038(D) .3888

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Statistics

03/10/21

Many electronics follow a failure rate described by an exponential probability density function (PDF).

Solar panels are advertised to last 20 years or longer, but panels made in China are failing at a higher rate. The time-to-failure of this device is usually exponentially distributed with mean 8... more

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Prealgebra

03/08/21

what i need answered

Solve the system: x = 5y - 1 and x + 2y = 13 Write your answer as a coordinate point

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Geometry Arc Length Area Of Radii

03/08/21

A water sprinkler has a range of 5 meters as shown.

The jet of water from the sprinkler sweeps out at an angle of 85° as the nozzle turns. What is the area watered by the sprinkler? Use the value π = 3.14, and round your answer to one decimal... more

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Statistics

03/06/21

An article investigated the consumption of caffeine among women. A sample of 53 women were asked to monitor their caffeine intake over the course of one day.

The mean amount of caffeine consumed in the sample of women was 232.082 mg with a standard deviation of 217.129 mg. In the article, researchers would like to include a 99% confidence interval. With... more

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Geometry

09/17/20

how to improve the accuracy of circumference

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Algebra 1

09/12/20

Algebra word problem

A bag of mixed dried beans for soup contains 1/8 pinto beans, 3/8 white beans, 1/4 kidney beans, and 8 ounces of navy beans. Find the weight of the a. entire bag of mixb. pinto beansc. white... more

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Spanish Grammar

09/12/20

What grammatical structure is highlighted -and spectacularly belted out-in the refrain of Juanes’ song “A Dios Le Pido?”

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Geometry

08/24/20

On a number line, suppose point E has a coordinate of 5, and EG=5. What are the possible coordinates of point G?

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Spanish Spanish 2 Spanish 3

08/17/20

el presente de indicativo vs. el presente de subjuntivo

logical form of the present indicative or the present subjunctiveHow would I do this?Es obvio que tú _____________ (SER) un hombre muy romántico.No es cierto que Uds. ___________ (IR) a pasarla... more

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Grammar

08/15/20

¿Qué cosas has hecho y qué cosas no has hecho para prevenir el contagio del virus?

Yo he Tú hasEl, ella, usted ha + participio Nosotros hemosVosotros habéisEllos, ellas, ustedes hanPuedes aplicar esta regla para las cosas que ya has hecho y para las cosas... more

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Precalculus

08/15/20

How are the graphs of f(x) = e ^ x - 2 g(x) = ln(x + 2) related if they are each graphed on the same grid.

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Algebra 2 Probability

08/14/20

Card probability

find the probability of selecting two 10s when two cards are drawn without replacement from a standard deck of cards

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Answers •3

Express the confidence interval 67.9 % ± 5.9 % in the form of a trilinear inequality.

A coin was tossed 400 times and head appeared 221 times. Test the hypothesis that the coin is unbiased.