20,437 Answered Questions for the topic Algebra

Algebra Math

09/22/21

Please help me find the missing number in this sequence
8, 28, 147, ___, 9280 a brief explanation would be appreciated! thank you!
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09/22/21

Solve the system by inverting the coefficient matrix and using the following theorem:

If A is an invertible n x n matrix, then for each n x 1 matrix b, the system of equations A x = b has exactly one solution, namely, x = a^-1b. x + y + z = 3x + y - 2z = 6-2x + y + z = 0
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09/22/21

Multivariable calculus
Consider that the system of three equations xy2+zu+v2=3x3z+2y-uv=2xu+yv-xyz=1defines implicitly x y and z as a function of u and vFind ∂y/∂v and ∂z/∂u at values x=y=z=u=v=1
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Algebra

09/22/21

Which statement is true about the summer to rational numbers
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Algebra

09/22/21

Inversingggggggg
given f(2)=8, what is f-1(8)?
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09/22/21

Piece wise linear functions

A university department is planning to have a local company print custom shirts for them. The quoted price for creating and printing the shirts is as follows:○The design and set-up fee is $95. ○For... more
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09/21/21

Arizona taxes problem.

The following is from the actual Arizona state tax table for 2020 taxes.A single person whose taxable income is between $0-$27,272 is charged 2.59% in tax.A single person whose taxable income is... more
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Algebra

09/21/21

seven less than one third of a number is the same as the product of five third and the sum of that number and - 5 what is the number

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Algebra

09/21/21

Write the equation of the line parallel to y=4x-3 passing through the point (-2,9)
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Algebra

09/21/21

One number is two less than a second number. Three times the first is three more than six times the second. Find the numbers
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Algebra Math

09/21/21

What is x in -8x=56
Solve the equation using multiplication or division. if you do answer thanks a lot.
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Algebra

09/21/21

algebra question
The length of a rectangle is 9inches more than the width. The perimeter is 38inches. Find the length and the width of the rectangle.
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Algebra Math Algebra 2

09/20/21

How would I find the surface area of a cone as a polynomial in standard form?
Here is everything included in the problem.Write the surface area of the figure as a polynomial in standard form.S = πr2 + πrℓr = 3xh = 4x+1
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09/20/21

Piecewise linear functions
Derek earns $25 per hour (or part of an hour) for a regular 40-hour work week. Sometimes, he works over 40 hours a week and earns “double time” for the extra hours worked. (That means that his... more
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09/20/21

Piecewise linear functions
Derek earns $25 per hour (or part of an hour) for a regular 40-hour work week. Sometimes, he works over 40 hours a week and earns “double time” for the extra hours worked. (That means that his... more
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Algebra Algebra 2

09/20/21

d/2 + f/4 = 6 solve for f
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09/20/21

Piecewise linear functions
Derek earns $25 per hour (or part of an hour) for a regular 40-hour work week. Sometimes, he works over 40 hours a week and earns “double time” for the extra hours worked. (That means that his... more
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Algebra Maths Mathematics

09/20/21

Ted is packing boxes. He packs 88 boxes in 8 hours. Since he is getting better, each hour he packs 4 more boxes than the previous hour. How many did Ted pack in the 2nd last hour?
Complete using algebra if able.
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Algebra

09/20/21

An earthquake could be felt over a circular area of 285,000 square miles. Up to how many miles from the epicenter (that is, the radius of the circular area) could the earthquake be felt?
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09/20/21

Piecewise linear functions
Derek earns $25 per hour (or part of an hour) for a regular 40-hour work week. Sometimes, he works over 40 hours a week and earns “double time” for the extra hours worked. (That means that his... more
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09/20/21

Help me solve this problem
A department store buyer purchased some shirts for $540. Then she sold all but eight of them. On each shirt sold, a profit of $6 (over the purchase price) was made. The shirts sold brought in... more
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09/19/21

Help Me with this problem! Please
A freight train requires 2.5 hours longer to make a 300-mile journey than an express train does. If the express train averages 20 miles per hour faster than the freight train, how long does it take... more
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Algebra

09/19/21

I cant seem to solve this
A 16​-inch board is to be cut into three pieces so that the second piece is 3 times as long as the first piece and the third piece is 4 times as long as the first piece. If x represents the length... more
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Algebra

09/19/21

How much of an alloy that is 40% copper should be mixed with 600 ounces of an alloy that is 70% copper in order to get an alloy that is 60% ​copper?
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Algebra

09/19/21

Two Linear Equations
A Broadway performance of The Lion King had a paid attendance of 387 people. Mezzanine tickets cost $70 and orchestra tickets cost $95. Ticket sales receipts totaled $30, 965. How many tickets of... more
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