Newest linear algebra Questions | Wyzant Ask An Expert

09/29/20

Exponential Growth Problem

Edgar wants to celebrate his retirement at age 70 with a trip around the world. He estimates that he will need $100,000 to take this trip. Edgar is currently 30 years old. How much money would he... more

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Linear Algebra Math Algebra 1 Algebra 2

09/28/20

Exponential Growth Problem

A gardener recycles yard waste in a compost bin in which each month 90% of the previous month's material is still present. The gardener fills his compost bin (which holds 20 cubic feet of material)... more

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Linear Algebra Math Algebra 1 Algebra 2

09/28/20

Exponential Growth Problem

Identify the following functions as either growth, decay, or neitherf(x) = 2(1.03)^xg(x) = 5(0.25)^10h(x) = 0.25(5.06)^xj(x) = 0.06(-4.02)^x

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Linear Algebra Math Algebra 1 Algebra 2

09/28/20

Exponential Growth Problem

On your 21st birthday, $4000 is invested for you at an annual yield of 8%. You do not withdraw any money from the account. What will be the balance in the account when you are 65?

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Linear Algebra Math Algebra 1 Algebra 2

09/28/20

Exponential Growth Problem

In 2009, the population of Ireland was 4,156,119, with an average annual growth rate of 1.13%. Assume this growth rate continues. Write the population P as a function of n, the number of years... more

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Linear Algebra

09/27/20

Describe all possible ways in which two planes (passing through origin) in R3 could intersect.

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Linear Algebra Gauss Jordan Theorem 1

09/26/20

Using Gauss-Jordan elimination to solve the following system (if possible)

(i) Using Gauss-Jordan elimination to solve the following system (if possible)x1 + x2 + x3 = 7x1 - x2 + 2x3 = 75x1 + x2 + x3 = 11Then, find the ranks of the matrix of coefficients and the augmented... more

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Linear Algebra Algebra 1 Algebra 2

09/26/20

How would you solve these inequalities?

1. You can work a total of no more than 10 hours each week at your two jobs. Housecleaning pays $5 per hour and your sales job pays $8 per hour. You need to earn atleast $56 each week to pay your... more

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Linear Algebra

09/25/20

Solving a value mixture problem using a linear equation

At the movie theatre, child admission is $5.10 and adult admission is $9.10. On Thursday, four times as many adult tickets as child tickets were sold, for a total sales of $913.00. How many child... more

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Linear Algebra Functions

09/24/20

linear function

Find the parameters a and b included in the linear function f(x) = a x + b so that f -1 (2) = 3 and f -1 (-3) = 6, where f -1 (x) is the inverse of function f.

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Linear Algebra

09/24/20

Select all statements below which are true for all invertible 𝑛×𝑛 matrices 𝐴 and 𝐵

ABA-1=B (A+A-1)9=A9+A-9 A+B is invertible (In-A)(In+A)=In-A2 (A+B)2=A2+B2+2AB A5 is invertible

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Linear Algebra Math Algebra 1 Algebra 2

09/24/20

Does a negative value for r imply a negative slope for a linear regression line

A negative value for r implies a negative slope for a linear regression line. True or False

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Linear Algebra Math Algebra 1 Algebra 2

09/23/20

Regression Line car problem

The data set below gives the greenhouse emissions and fuel economy for five car modelsCar Model City MPG Greenhouse Emissions A 21 8.0 B 11 14.1 C 19 ... more

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Linear Algebra Math Algebra 1 Algebra 2

09/23/20

Linear model line of best fit problem

Table:Family Member Age States VisitedJane 16 15Cousin Xia 16 18Dad 40 27Grandma 70 ... more

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Linear Algebra Math Algebra 1 Algebra 2

09/23/20

Consider the linear model f(x) = 5.2x - 3

Consider the linear model f(x) = 5.2x - 3. If needed, round your answer to the nearest tenth.Given a residual of -0.2 at x = 1, find the observed value. Answer: Given a residual of 2.1 at x = 4,... more

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Linear Algebra Math Algebra 1 Algebra 2

09/23/20

Linear Models Diamond problem

Diamonds are priced by their carat weight. A 0.12 carat diamond is priced at $334.50 and a 0.17 carat weight diamond is priced at $1,629. Find an equation for the line that passes through these... more

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Linear Algebra Math Algebra 1 Algebra 2

09/23/20

Linear Models Diamond problem

Diamonds are priced by their carat weight. A 0.12 carat diamond is priced at $334.50 and a 0.17 carat weight diamond is priced at $1,629. Find an equation for the line that passes through these... more

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Linear Algebra

09/21/20

what is the slope of the line that passes through (1,-19) and (-2,-7)

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Linear Algebra

09/20/20

Find all the subspaces of R2.

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Linear Algebra Sat Math

09/19/20

The combustion of butane in oxygen produces carbon dioxide and water. C4H10 + O2 → CO2 + H2O .Find a balanced chemical equation for this reaction.

For the question above use the following instructions :-i) Form the system of linear equationsii) Change the augmented matrix to reduced row-echelon form

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Linear Algebra Math Calculus Discrete Math

09/18/20

Please help with the following question!!!

Which of the following quantified statements is (are) true? Let the domain for be the set of all real numbers.[Note: There may be multiple correct answers!]a.) b.) c.) d.) e.) f.)

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Linear Algebra Math Calculus Electrical Engineering

09/18/20

Please help with the following question!!!!!!

Consider the following statement:There exists an integer such that .This could be written in symbolic form asa.) b.) c.)

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Linear Algebra Calculus Discrete Math Electrical Engineering

09/18/20

Please help with predicate!!!!

If the domain is - the set of all integers (i.e., ), then the predicate is TRUE for all of the following values of :a.) No values of in this domain make the predicate trueb.) - this is the... more

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Linear Algebra

09/17/20

linear algebra

Find the value(s) of the constant k such that the system of linear equations:x + 2ky = k,2kx + 4ky = 4k − 2has(i) No solution.(ii) An infinite number of solutions.(iii) Exactly one solution

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Linear Algebra

09/16/20

Total spent MYR 66 100. Price for kayak 8600, price for canoe 9800, price for boat 6500. How many quantity of these three things he purchased?

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Exponential Growth Problem

Exponential Growth Problem

Exponential Growth Problem

Exponential Growth Problem

Exponential Growth Problem

Describe all possible ways in which two planes (passing through origin) in R3 could intersect.

Using Gauss-Jordan elimination to solve the following system (if possible)

How would you solve these inequalities?

Solving a value mixture problem using a linear equation

linear function

Select all statements below which are true for all invertible 𝑛×𝑛 matrices 𝐴 and 𝐵

Does a negative value for r imply a negative slope for a linear regression line

Regression Line car problem

Linear model line of best fit problem

Consider the linear model f(x) = 5.2x - 3

Linear Models Diamond problem

Linear Models Diamond problem

what is the slope of the line that passes through (1,-19) and (-2,-7)

Find all the subspaces of R2.

The combustion of butane in oxygen produces carbon dioxide and water. C4H10 + O2 → CO2 + H2O .Find a balanced chemical equation for this reaction.

Please help with the following question!!!

Please help with the following question!!!!!!

Please help with predicate!!!!

linear algebra

Total spent MYR 66 100. Price for kayak 8600, price for canoe 9800, price for boat 6500. How many quantity of these three things he purchased?

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