Answer:
This answer is close. Im not 100% sure it is the exact answer but i'm pretty sure it is correct
ANSWER:2412.74029242
Step-by-step explanation:
hope this helped let me know how it goes :)
Answer:
x=4 and y=−2
Step-by-step explanation:
<u>Let's solve your system by substitution.</u>
3x+8y=−4;2x−4y=16
<u>Step: Solve</u> 3x+8y=−4 for x:
3x+8y=−4
3x+8y+−8y=−4+−8y(Add -8y to both sides)
3x=−8y−4
3x/3=−8y−4/3 (Divide both sides by 3)
x=−8/3y+−4/3
<u>Step: Substitute</u> −8/3y+−4/3 for x in 2x−4y=16:
2x−4y=16
2(−8/3y+−4/3)−4y=16
−28/3y+−8/3=16 (Simplify both sides of the equation)
−28/3y+−8/3+8/3=16+8/3 (Add 8/3 to both sides)
−28/3y=56/3
−28/3y/−28/3=56/3/−28/3 (Divide both sides by (-28)/3)
y=−2
<u>Step: Substitute</u>−2 for y in x=−8/3y+−4/3:
x=−8/3y+−4/3
x=−8/3(−2)+−4/3
x=4 (Simplify both sides of the equation)
So the Answers are: x=4 and y=−2 or u can switch it around y=−2 and x=4
Area of rectangle: 5x2 -18x - 8
//Hope this helps.
Step ![1](https://tex.z-dn.net/?f=1)
<u>Divide the number of people by the number of square miles</u>
we know that
million people is equal to
people
![\frac{6,540,000}{36,185} \frac{people}{mi^{2}} =180.74\frac{people}{mi^{2}}](https://tex.z-dn.net/?f=%5Cfrac%7B6%2C540%2C000%7D%7B36%2C185%7D%20%5Cfrac%7Bpeople%7D%7Bmi%5E%7B2%7D%7D%20%3D180.74%5Cfrac%7Bpeople%7D%7Bmi%5E%7B2%7D%7D)
Step ![2](https://tex.z-dn.net/?f=2)
<u>Convert to scientific notation</u>
![180.74\frac{people}{mi^{2}}=1.8074*10^{2}\frac{people}{mi^{2}}](https://tex.z-dn.net/?f=180.74%5Cfrac%7Bpeople%7D%7Bmi%5E%7B2%7D%7D%3D1.8074%2A10%5E%7B2%7D%5Cfrac%7Bpeople%7D%7Bmi%5E%7B2%7D%7D)
therefore
<u>the answer is</u>
![1.8074*10^{2}\frac{people}{mi^{2}}](https://tex.z-dn.net/?f=1.8074%2A10%5E%7B2%7D%5Cfrac%7Bpeople%7D%7Bmi%5E%7B2%7D%7D)