Answer:
y=3
x=-8
Explanation:
<h3 />
2x+4y=-4 (x 3)
3x+5y=-3 (x -2)
6x+12y=-12 <em> (6x and</em>
-6x-10y=6 <em> -6x cancel)</em>
12y=-12 <em>(12y-10y)</em>
-10y=6 <em>(12-6)</em>
2y=-6
y=-6÷2=3 <em>(2 is brought across equals it divides)</em>
y=3 <em>(now replace 'y' in original equation with 3)</em>
2x+4(3)=-4 <em>(</em><em>4</em><em>×</em><em>3</em><em>=</em><em>1</em><em>2</em><em>)</em>
2x+12=-4
2x=-4-12 <em>(</em><em>12</em><em> </em><em>becomes</em><em> </em><em>-</em><em>12</em><em> </em><em>brought</em><em> </em><em>across</em><em> </em><em>equals</em><em>)</em>
2x=-16
x=-16÷2=-8 <em>(</em><em>multiply</em><em> </em><em>1</em><em>6</em><em> </em><em>across</em><em> </em><em>equals</em><em> </em><em>is</em><em> </em><em>divide</em><em> </em><em>16</em><em>)</em>
x=-8
*these are my workings on this equation, they may not be correct*
Answer:
Social engineering
Explanation:
Social engineering in terms of information security has to do with using manipulative tricks to get confidential statements or information from people in order to perpetrate crimes, such information includes bank details, password, etc. Social engineering is adopted by criminals because it is easier to use natural inclination make people trust you and divulge confidential information to you than make moves to either hack or break cyber security.
Answer:
The white lined paper
Explanation:
The teacher is most likely putting the while line paper in jeopardy because of the detail process involved in taking care of the paper prior to the submission of the home work.
The fact that a mistake must not be visible due to the instruction of every erasures being thorough and clean. this can cause jeopardy to the paper.
Answer:
the major jobs of a nurse are
1.to take care of patients
2.to give medicine to patients in time
3.to help doctors in operation time
Answer:
Explanation:
Given.
Thickness of brass plate
Thermal conductivity of brass
Density of brass
Specific heat of brass
Thermal diffusivity of brass
Temperature of oven
The initial temperature
Plate remain in the oven
Heat conduction in the plate is one-dimensional since the plate is large relative to its thickness and there is thermal symmetry about the center plane.
The thermal properties of the plate are constant.
The heat transfer coefficient is constant and uniform over the entire surface.
The Fourier number is > 0.2 so that the one-term approximate solutions (or the transient temperature charts) are applicable (this assumption will be verified).
The Biot number for this process
The constants and corresponding to this Biot are, from 11-2 tables.
The interpolation method used to find the
and
The Fourier number
Therefore, the one-term approximate solution (or the transient temperature charts) is applicable.
Then the temperature at the surface of the plates becomes