1,954 Answered Questions for the topic linear algebra

Linear Algebra

09/14/19

MTH 266 HW 2 Problem #1
Is the following valid? Why or why not?For square matrices A and B with Real entries: (A+B)2 = A2+ AB+B2
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Linear Algebra

09/12/19

f(x)=x-5; translation 4 units to the left
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Linear Algebra Algebra 1 Algebra 2 Sat Math

09/11/19

find a b and c please
The graph of the function f(x)=ax^2+bx+c has its vertex at (0, 5) and passes through the point (1, 6).  Find​ a, b, and c.
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Linear Algebra Algebra 1 Algebra 2 Prealgebra

09/11/19

Determine the quadratic function f whose graph is given. 
Determine the quadratic function f whose graph is given.   The vertex is (3,-12) and the ​y-intercept is -3.
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Linear Algebra Math Algebra 1 Algebra 2

09/11/19

PLease help solve this word problem
The point at which a​ company's profits equal zero is called the​ company's ​break-even point. Let R represent a​ company's revenue, let C represent the​ company's costs, and let x represent the... more
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Linear Algebra Math Algebra 1 Algebra 2

09/11/19

help solve the answers from the function given
The cost​ C, in​ dollars, of renting a moving truck for a day is given by the function C(x)=0.20x+45, where x is the number of miles driven.​(a) What is the cost if a person drives x=240 miles?​(b)... more
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Linear Algebra Algebra 1 Algebra 2 Prealgebra

09/11/19

please help me with this

suppose that f(x)=6x-5 and g(x)= -2+3 find:a) f(x)=0b) f(x)> 0c) f(x)= g(x)
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Linear Algebra Algebra 1 Algebra 2 Act Math

09/11/19

find the slope please

g(x)= 2x+8 f(x)= 1/6x-3 f(x)= 2 f(x)= 1
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Linear Algebra Algebra 1 Algebra 2 Prealgebra

09/11/19

fine the slope please

x y=f(x) 1 −8 2 −13 3 −18 4 −23 5 −28 determine the slope
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Linear Algebra

09/10/19

Need help ASAP! Parallel line problem!

I’m still very new to the topic, but can anyone help me out? My question is what’s the equation of a line that passed through the point (-2,3) and is parallel to the line whose equation is y=3/2x-4?
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Linear Algebra Calculus

09/08/19

Perpendicular Distance
Find the perpendicular distance from the point P(5, 4, 1) to the y-axis.
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Linear Algebra

09/06/19

Write the algebraic expression described.
Recall that two angles are supplementary if their sum is 180 degrees. If one angle measures f degrees, express the measure of its supplement in terms of degrees.
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Linear Algebra Math Calculus Geometry

09/04/19

Consider 3 noncollinear points. From the set of all convex combinations of these points. What is the geometry of this set?
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Linear Algebra Math Geometry Computer Science

09/04/19

Consider 2 points form the set of all convex combinations of the points. What is the geometry of the set?
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09/04/19

Linear Algebra for Computer Science
Suppose we are given p,q are in Euclidean E2 and v,w are in all real numbers R2. Do the following operations result in a point or a vector?A. p-qB. 1/2p+1/2qC. p+vD. 3vE. v+wF. p+1/2w
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Linear Algebra Math

09/04/19

If a vector v is length 10 then what is the length of the vector -2v
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Linear Algebra Math Algebra 1 Algebra 2

09/03/19

NEED HELP ASAP!
Are the points A(3,5), B(0,2) and C(-2,10) the vertices of a right triangle? Justify your answerThe endpoints of the diameter of a circle are (-5,1) and (3,-5). Find the center and the radius of... more
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Linear Algebra

08/30/19

Need help with Linear equations with unknown coefficients

—cz+6z=tz+83 solving for z
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Linear Algebra Algebra 1 Algebra 2 Prealgebra

08/29/19

please help me with this word problem
Express the gross salary G of a person who earns $24 per hour as a function of the number x of hours worked.
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Linear Algebra Math Algebra 1 Algebra 2

08/29/19

please help with this function
if f(x)= 4x^3+Ax^2+7x-3 and f(2)=1, what is the value of A?
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Linear Algebra Expotiantial And Linear

08/28/19

how to solve this problem step by step
Fred and Wilma purchase a new home for $200,000. The value of the home increases by 5% every 2 years. Determine the value of the home after 25 years.
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Linear Algebra

08/28/19

The equation for the slope 3/5, passes through (-6,-8)
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Linear Algebra Math Algebra 1 Algebra

08/22/19

Distance vertices

Three straight paths in a park create a triangle with picnic shelters at their vertices. The picnic shelters are located at (-24, 16), (56, -16) and (-72, -32). Where should a "splash pad" be... more
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Linear Algebra Math Algebra 1 Algebra 2

08/21/19

Quadrilaterals vertices PQRS
Quadrilateral PQRS has vertices P(3,2), Q(0,4), R(-2,1) and S(1,-1) a) Verify that quadrilateral PQRS is a square.b) Find the perimeter of the rectangle.
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Linear Algebra

08/21/19

The sum of a number and four times the number.

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