Rolex worked 40 hours last week. He had $74 deducted from his earnings for taxes. If he had $286 left after the deduction, how much does Rolex earn per hour?

mashingcho9v
2022-09-14
Answered

You can still ask an expert for help

asked 2021-06-01

Find the linear approximation of the function

Use L(x) to approximate the numbers

asked 2022-02-25

I mean, that whenever we talk about linear equations, we say that they always form a straight line on a graph. We make this sure by making a graph of some possible solutions to the equation and plotting the points on the graph. But can we make sure that all the solutions of the linear equation will always form a straight line because we cannot plot each and every solution of the equation on the graph because there are infinitely many solutions to a linear equation in 2 variables?

asked 2022-06-04

Show that if $u(x,t)$ satisfies ${u}_{t}=k\mathrm{\Delta}u$ in a bounded region G, then for any $L>0$, $u(Lx,{L}^{2}t)$ solves the same equation for $x\in {L}^{-1}G$, where ${L}^{-1}G$ is the set of points ${L}^{-1}y$ for $y\in G$. Here $k$ is a positive constant.

I am considering $L$ to be some form of a linear operator. In terms of sets, this statement makes sense, but I'm not quite too sure how to definitively show it.

I am considering $L$ to be some form of a linear operator. In terms of sets, this statement makes sense, but I'm not quite too sure how to definitively show it.

asked 2020-10-21

Given a homogeneous system of linear equations, if the system is overdetermined, what are the possibilities as to the number of solutions?

Explain.

Explain.

asked 2022-06-06

I am suppose to find the ker(T) of linear transformation of:

$G\left(\begin{array}{cc}a& d\\ c& b\end{array}\right)=a+\frac{b+c}{2}x+\frac{b-c}{2}{x}^{2}$

the form $T:V\to W$

My problem is that I don't really know how to read the right side of the equation, is that a vector? A polynomial?

Am I supposed to take the right side of the equation and make it equal with 0?

$G\left(\begin{array}{cc}a& d\\ c& b\end{array}\right)=a+\frac{b+c}{2}x+\frac{b-c}{2}{x}^{2}$

the form $T:V\to W$

My problem is that I don't really know how to read the right side of the equation, is that a vector? A polynomial?

Am I supposed to take the right side of the equation and make it equal with 0?

asked 2022-09-09

Valencia Theater sold 499 tickets for a play. Tickets cost $14 per student with valid Valencia identification and $23 per none student. If total receipts were $8138, how many Valencia student tickets and none student tickets were sold?

asked 2021-11-16

Find the area of the region enclosed by one loop of the curve. $r=\mathrm{sin}4\theta$