1,954 Answered Questions for the topic linear algebra

Linear Algebra

04/25/23

Linear algebra prob
let A = Find an orthogonal matrix P with rational entries and a diagonal matrix D such that D=P^TAP.
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Linear Algebra Algebra 1

04/24/23

The rate of change of function f is the same from x=-2 to x=1 as it is from x=1 to x=4. Is function f linear, quadratic, or exponential?
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Linear Algebra Math

04/18/23

college algebra
A certain forest covers an area of 2700 km2. Suppose that each year this area decreases by 7.25%. What will the area be after 7 years?
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Linear Algebra

04/17/23

Help Linear Algebra
Find formulas for the entries of M^n, where n is a positive integer. (Your formulas should not contain complex numbers.)
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Linear Algebra

04/16/23

Word Problem,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
One student was charged $25 for 3 hours of tutoring. Another student was charged $55 for 7 hours of tutoring. The relationship between the cost and time is linear. Designate two data... more
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Linear Algebra

04/11/23

EigenValues & EigenVectors
Find the eigenvalues λ1<λ2<λ3 and associated unit vectors v1,v2,v3 of the symmetric matrix A =
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Linear Algebra

04/11/23

Determinants of matrices
If A and B are 2x2 matrices, det(A) = -5, det(B) = 6what is det(AB) = ____det (AT) = ____
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Linear Algebra

04/11/23

help Linear algebra
has 3 distinct eigen values if and only if__<k<__what are the 2 values for the blanks
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Linear Algebra

04/04/23

Solving a value
A family has two cars. The first car has a fuel efficiency of 30 miles per gallon of gas and the second has a fuel efficiency of 20 miles per gallon of gas. During one particular week,... more
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Linear Algebra

04/03/23

Is x+y-z=2 a subspace of R^3?
Hello,I am a little confused about this problem - I know that in order for something to be considered a subspace it must pass through the origin (and thus include the zero vector). Does this mean... more
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Linear Algebra Math Algebra 1 Algebra 2

04/03/23

A square with sides of length a and a center at the origin has two sides parallel to the​ x-axis. Find the polar coordinates of the vertices. Choose the correct answer below. Select all that apply.
A square with sides of length a and a center at the origin has two sides parallel to the​ x-axis. Find the polar coordinates of the vertices. Choose the correct answer below. Select all that apply.
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Linear Algebra Math

03/30/23

What is the reasoning behind this inequality being displayed like this?

The inequality for the following constraint→ "There cannot be more than 3 child tickets sold for every adult ticket sold."Where child tickets are yand adult tickets are xis y ≤ 3x Why can the... more
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Linear Algebra

03/26/23

If f(x) is a linear function, with f(2)=11 , and f(4)=27 , find an equation for the function in slope-intercept form.
If f(x) is a linear function, with f(2)=11, and f(4)=27, find an equation for the function in slope-intercept form.f(x)=
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Linear Algebra Math Algebra 1 Algebra 2

03/20/23

IGNORE LAST ONE, I NEED THIS
Suppose that Uranus rotates on its axis once every 17.2 hours. The equator lies on a circle with a diameter of 31,762 miles.(a) Find the angular speed of a point on its equator in radians per day... more
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Linear Algebra Math Algebra 1 Algebra 2

03/20/23

I NEED THIS PLEASE
A ceiling fan has 14-inch blades (so the radius of the circular fan is 14 inches). Suppose the fan turns at a rate of 57 revolutions per minute.(a) Find the angular speed of the fan in radians per... more
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Linear Algebra

03/19/23

Linear Algebra Help needed!
https://gyazo.com/b49dd100a62f004e884b8613d2e94b8cHad to put it as an image as it's a long winded question, but will much appreciate it. Thank you!
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Linear Algebra

03/18/23

Linear and exponential functions
The table below represents the function f(x). x -6 -5 -4 -3 -2 -1 0 f(x) 8.002 8.007 8.018 8.05 8.135 8.368 9 *Note: Values in the table are rounded where necessary.If g(x) is an exponential... more
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Linear Algebra

03/15/23

What is the remaining credit after 50 minutes of calls
The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 24 minutes of calls is $21.88, and the... more
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Linear Algebra

03/15/23

what is the height of the candle after 14 hours
The height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. When graphed, the function gives a line with a slope of -0.5Suppose that the... more
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Linear Algebra

03/14/23

The age of a client and the first client is add up to 39 years and the second client is add up to 39 years. in 3 years time the first client will be 4 times as old as the second client
Its age problem
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Linear Algebra Math Algebra 1 Algebra 2

03/14/23

I NEED THIS SOON IT WOULD BE GREATLY APPRECIATED
A cyclist is riding a bicycle whose wheels have a diameter of 24 inches. Suppose he is traveling at 26 miles per hour. (A useful fact: =1mi5280ft.)(a) Find the angular speed of the wheels in... more
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Linear Algebra Math Algebra 1 Algebra 2

03/14/23

I NEED THIS ASAP PLEASE
A ceiling fan has 17-inch blades (so the radius of the circular fan is 17 inches). Suppose the fan turns at a rate of 59 revolutions per minute.(a) Find the angular speed of the fan in radians per... more
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Linear Algebra Math Physics

03/14/23

Finding missing Scalars - Linear Algebra

Hi , I have been very confused on this question . Your help is very very appreciated.Consider the vectorsu = [ 0,1,1] and v = [ 2 , -2 , 1 ]Let w = mv + k√10u * vwhere m and k are elements of all... more
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Linear Algebra

03/14/23

Linear or nonlinear
3.1 = 3x=0
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Linear Algebra

03/13/23

Markov Chain Need help!
The weather on any given day in a particular city can be sunny, cloudy, or rainy. It has been observed to be predictable largely on the basis of the weather on the previous day. Specfically:if it... more
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