Tom K.

08/28/21

Graphing SIne Cosine

The waves of a tsunami are traveling at 6 mi / min. It takes a wave 1 hour to complete one period. What is the length between wave peaks?

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Statistics Probability

08/28/21

statistics probability

Suppose that the tourism board decides to look over their data on international tourists in the USA to make some predictions for when tourism resumes.They find that the probability that an... more

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Statistics

08/28/21

In a survey, the planning value for the population proportion is p* = 0.16. How large a sample should be taken to provide a 90% confidence interval with a margin of error of .04?

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Probability

08/28/21

An engineering system problem

An engineering system consisting of n components is said to be a k-out-of-n system (k ≤ n) if the system functions if and only if at least k of the n components function. Suppose that all... more

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Math Algebra 2

08/27/21

Honors Algebra 2 Sequences Question

The sum of the first 10 terms of a geometric sequence is 4-2^(-8). If the common ratio is 1/2, find the first term of the sequence. Use this to determine the 11th term of the sequence.

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Calculus

08/26/21

Find a formula for a cubic function f if f(5) = 240 and f(−3) = f(0) = f(6) = 0.

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Algebra 1 Algebra 2

08/26/21

How many cups of 15% juice must be added up to 10 cups of 20% juice so the mixture in 17% juice?

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Statistics Probability Distribution

08/23/21

Sampling Distribution: There are 350 workers in a firm, with an average age of 37.6 years and an 8.3 years of standard deviation.

There are 350 workers in a firm that consists of the following:-An average age of 37.6 years-Standard deviation of 8.3 yearsWhat is the probability that a random sample of 45 employees would have... more

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Calculus

08/20/21

Find the absolute maximum and minimum

Find the absolute minimum and maximum of f(x, y) = 2x² - y² + 6y over the 2 region x² + y² ≤ 16. You must look for local maximums and minimums in the region as well as check along the boundary. more

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Algebra 1

08/17/21

Math question about coffee

A store sells regular coffee for $5 a pound and gourmet coffee for $8 a pound. To get rid of 60 pounds of the gourmet coffee, a shopkeeper makes a blend to put on sale for $6 a pound. How many... more

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Probability Chance

08/16/21

Probability question. (must be in decimal form)

Question. The probability that Samantha gets a multiple-choice question correct is 0.6. Sammantha attempts 3 multiple choice questions. The probability that she gets at least one correct is:

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Calculus

08/16/21

Find equations of the tangent plane and normal line to the surface x=3y^2+3z^2−274 at the point (-4, -9, -3).

Find equations of the tangent plane and normal line to the surface x=3y^2+3z^2−274 at the point (-4, -9, -3).Tangent Plane: (make the coefficient of x equal to 1). ? =0Normal line: ⟨−4, ? , ? ⟩... more

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Calculus Geometry

08/14/21

Analytic Geometry Revisited...

You are given the planes (Π1) , (Π2) and the line (L1)(Π1) : 2x + 3y +z = 6(Π2) : 3x + 5y +2z = 10(L1) : x =4 +t , y = 4 - 7t , z = 1 - 8t. Find the equation of the plane (Π3) that contains the... more

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Algebra 1

08/12/21

Write an equation for the n th term of the arithmetic seqeuence. Then find a10. 10,0,-10,-20

kinda stuck on this problem, need help.

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Algebra 1

08/12/21

Write an equation for the n th term of the arithmetic seqeuence. Then find a10. 100,110,120,130

kinda stuck on this problem, need help.

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Probability Mathematics

08/09/21

Help with Permutation and combination question!

You have 10 concert tickets of EDM and 7 concert tickets of classical singer . What is the total number of ways in which tickets can be given to three person if they may receive any number of... more

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Math Calculus Derivative

08/07/21

Optimization question

Find two positive numbers satisfying the given requirements.The sum of the first and twice the second is 200 and the product is a maximumfirst number=?second number=?

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Calculus

08/06/21

Find absolute extrema

Find the absolute extrema of the function f(x,y) = (3x−y)². over the triangular region in the xy-plane with vertices (2,0), (0,2), and (1,3).a. absolute maximum: 36 at (2,0)absolute minimum: 0 at... more

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Calculus

07/30/21

Calculus 3 Parametric

Find the surface area of the part of the plane z=6+2x+3y that lies inside the cylinder x^2+y^2=16

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Math Algebra 1 Algebra 2

07/29/21

PLEASE help me.. thank you in advance.

Consider two consecutive positive integers such that the square of the second integer added to 2 times the first is equal to 78 .Find the integers by solving the equation.

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Algebra 2

07/29/21

Factoring and Foiling out

a4 + 1 (have to be foil out too) a4 – 64

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Statistics Probability Mathematics

07/29/21

Ina box contain 21 marbles: 6 white, 7 black, and 8 yellow. Randomly pick out one marble and return it back to the box for 8 times. What is the possibility to get exact 4 white and 3 black marbles?

The answer has four decimal place.

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Calculus

07/28/21

Calculus 3 Green theorem

Find the area of region enclosed by x=t−t^6, y=t−t^5, 0≤t≤1 using Green's Theorem.

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Statistics Probability

07/28/21

What is the probability?

A life insurance salesman finds that, of all the sales he makes, 70% are to people who already own policies. He also finds that, of all contacts for which no sale is made, 50% already own life... more

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Calculus

07/28/21

Find the parametric equations

Find parametric equations for the position of a particle moving along a circle as described. (Enter your answers as comma-separated lists of equations. Use t as the parameter.) The particle travels... more

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Graphing SIne Cosine

statistics probability

In a survey, the planning value for the population proportion is p* = 0.16. How large a sample should be taken to provide a 90% confidence interval with a margin of error of .04?

An engineering system problem

Honors Algebra 2 Sequences Question

Find a formula for a cubic function f if f(5) = 240 and f(−3) = f(0) = f(6) = 0.

How many cups of 15% juice must be added up to 10 cups of 20% juice so the mixture in 17% juice?

Sampling Distribution: There are 350 workers in a firm, with an average age of 37.6 years and an 8.3 years of standard deviation.

Find the absolute maximum and minimum

Math question about coffee

Probability question. (must be in decimal form)

Find equations of the tangent plane and normal line to the surface x=3y^2+3z^2−274 at the point (-4, -9, -3).

Analytic Geometry Revisited...

Write an equation for the n th term of the arithmetic seqeuence. Then find a10. 10,0,-10,-20

Write an equation for the n th term of the arithmetic seqeuence. Then find a10. 100,110,120,130

Help with Permutation and combination question!

Optimization question

Find absolute extrema

Calculus 3 Parametric

PLEASE help me.. thank you in advance.

Factoring and Foiling out

Ina box contain 21 marbles: 6 white, 7 black, and 8 yellow. Randomly pick out one marble and return it back to the box for 8 times. What is the possibility to get exact 4 white and 3 black marbles?

Calculus 3 Green theorem

What is the probability?

Find the parametric equations

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