The system reads:
8x-3y=13
-3x-8y=-14
Solve this by solving for one variable at a time by cancelling the other. We will begin by solving for y and cancelling x. To do this, you need to find the least common multiple (LCM) of the x variables and multiply both equations by the number which will make them equal the LCM. For 8 and 3, the LCM is 24, so you will multiply the top equation by 3 and the bottom one by 8.
<em>*****In order for the variables to cancel, the signs need to be opposite. In this system, one is already positive and the other negative; if this were not the case, one of the equations would have needed to be multiplied by a negative number.*****</em>
The system becomes:
24x-9y=39
-24x-24y=42
Now, you can combine the equations by adding them:
-33y=81
Solve for y:
<em>*Divide both sides by -33*</em>
y=27/11
To find x, you can select one of the given equations, plug in 27/11 for y, and solve for x. We'll use the first equation:
8x-3(27/11)=13
8x-81/11=13
<em>*Add 81/11 to both sides*</em>
8x=224/11
<em>*Divide both sides by 8*</em>
x=28/11
Hope this helps!!
Answer:
The correct answer is D..
Step-by-step explanation:
The F-distribution, or Fisher-Snedecor distribution is a well known probability distribution with many applications in Statistics. The graph of its probability density function has several shapes depending of the parameters. Recall that the F-distribution has two free parameters. In the attached graph (https://en.wikipedia.org/wiki/F-distribution#/media/File:F-distribution_pdf.svg) it is shown different shapes of the F-distribution in terms of different values of the parameters.
Answer: That's just a formula you use in order to use it for your problems.
Step-by-step explanation:
Answer:
Did you mean 3.50x? If so, It would be (1.2, 2.2). If you meant just 3.50, it would be (1.56, 1.5)
Hope this helps!
Answer:
x = 16.8
Step-by-step explanation:
The ratio of corresponding sides is equivalent to the ratio of the perimeters.
Then using proportion
= 
( cross- multiply )
5x = 84 ( divide both sides by 5 )
x = 16.8
