CoormaBak9
2020-12-30
Answered

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crocolylec

Answered 2020-12-31
Author has **100** answers

answer: x=1 or x= 3

asked 2022-07-04

How to frame this set of linear equations?

$2x+1y+2z=A$

$0x+2y+2z=A$

$1x+2y+1z=A$

I assume this can be rewritten as a matrix? How can I check if a solution exists such that x, y, and z are nonnegative?

$2x+1y+2z=A$

$0x+2y+2z=A$

$1x+2y+1z=A$

I assume this can be rewritten as a matrix? How can I check if a solution exists such that x, y, and z are nonnegative?

asked 2022-07-06

1.) Given the following equations:

$3x-y=30\phantom{\rule{0ex}{0ex}}5x-3y=10$

What are the values of $x$ and $y$?

$3x-y=30\phantom{\rule{0ex}{0ex}}5x-3y=10$

What are the values of $x$ and $y$?

asked 2021-12-11

Write an absolute value inequality for the following.

$\{\frac{x}{0.25}\le x\le 2.75\}$

asked 2021-12-12

Solve the inequality $|x-1|\le |x+2|$

asked 2021-12-03

Find the quadratic function that is best fit for f(x) defined by the table below

$$\begin{array}{}X& f(x)\\ 0& 0\\ 2& 401\\ 4& 1598\\ 6& 3595\\ 8& 6407\\ 10& 10,009\end{array}$$

The quadratic function is y=.

(Type an equation using as the variable. Round to two decimals places as needed)

The quadratic function is y=.

(Type an equation using as the variable. Round to two decimals places as needed)

asked 2022-06-12

asked 2022-06-23

Teresa's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Teresa 5.65 dollars per pound, and type B coffee costs 4.35 dollars per pound. This month's blend used three times as many pounds of type B coffee as type A, for a total cost of 673.20 dollars.

Find how many pounds of type A coffee were used.

Find how many pounds of type A coffee were used.