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Linear Algebra

07/18/21

linear combination of the basis vectors

Consider the set of vectors in R3 given by a1=(1, 0, 0), a2=(1,-2,0), a3=(0,0,1).Write the vector x=(1, 2, 5) as a linear combination of the basis vectors a1, a2, a3.

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Linear Algebra Algebra

07/16/21

Find the lengths of the sides of the triangle with the vertices 𝐴(2,−1,4), 𝐵(−2,2,9), and 𝐶(6,4,7)

|AB|= ?|AC|= ?|BC|=? is triangle ABC an isosceles triangle?

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Linear Algebra Algebra

07/16/21

find a vector a that has the same direction as <-8,9,8> but has a length of 3

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Linear Algebra Trigonometry Algebra Linear Equations

07/15/21

Show that,(cos4x-cos2x)/2sin3x=-sinx for all x such that sin(3x) is not equal to zero

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Linear Algebra Algebra

07/14/21

find a vector a that has the same direction as <-8,9,8> but has a length of 3

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Linear Algebra Algebra

07/14/21

suppose B=(-3,-6,-2) and AB->= <4,-11,4> then A=?

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Linear Algebra Algebra 1 Linear Equations Mathematics

07/14/21

Find all x for this equation 2cosx-3=-5, 0<_x<_2π

The range is 0 is less than equal x and x is less than equal 2π.Solve this according to the rules of unit circle.

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Linear Algebra Algebra

07/14/21

suppose B= (-3,6) and AB-> = <5,5> then

suppose B= (-3,6) and AB-> = <5,5> then A=?

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Linear Algebra Algebra Vector

07/14/21

find the vector in r^3 from the point

find the vector in r^3 from the point A=(x,y,z) to B=(2,-8,1)

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Linear Algebra Math Algebra 1 Algebra 2

07/14/21

Let X(n) represent the measure of one exterior angle of a regular polygon of n sides. What is the domain of this function?

i am on a time limit, so if anyone can, pls answer in the next 20 minutes!

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Linear Algebra

07/12/21

Find a linear equation to solve for the following unknown quantities: one number exceeds by 20 and their sum is 42. Find the two numbers

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Linear Algebra

07/12/21

Can someone please explain how you find the answer. I don’t understand how you find it with a length

Find a vector in R3 that has length 5 and is orthogonal to both a=[2 1 -3] and b=[1 -2 1]

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Linear Algebra Algebra 1 Algebra 2 Precalculus

07/11/21

A ferris wheel is 25 meters in diameter and boarded from a platform that is 1 meters above the ground.

A ferris wheel is 25 meters in diameter and boarded from a platform that is 1 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel... more

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Linear Algebra Algebra 1 Algebra 2 Calculus

07/11/21

A ferris wheel is 40 meters in diameter and boarded from a platform that is 1 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform.

A ferris wheel is 40 meters in diameter and boarded from a platform that is 1 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel... more

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Linear Algebra

07/07/21

math Question!!!

You are given the 2D vectors X = {-3, 5}, and Y = {2, -2}.a) If the tails of X and Y are at the origin, what is the distance from the tip of X to the tip of Y?What is YcompX, the component vector... more

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Linear Algebra

07/07/21

Prove that the set S= {[1, 2, 1]. [1, 0, 2]. [1, 1, 0]} spans R^3

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Linear Algebra Algebra 1 Algebra 2 Algebra

07/05/21

I NEED HELP SOON PLEASE

A supply company manufactures copy machines. The unit cost C (the cost in dollars to make each copy machine) depends on the number of machines made. If x machines are made, then the unit cost is... more

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Linear Algebra Linear Equations

07/03/21

Linear function and application.

A non government organization launched a program which aimed to maximize the use of recyclable materials and reduce plastic waste in that environment. Your village was chosen to be a participant of... more

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Linear Algebra Linear Equations

07/03/21

Linear inequality

Suppose you are shopping for notebooks and pad papers for a fund drive. Notebook (x) costs 15 and paper (y) costs 12. You have at most 1500 to spend.1. Write a linear inequality in two variables... more

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Linear Algebra Math College Algebra Composite Functions

06/30/21