X^2 = 4^2 - (2√3)^2
x^2 = 16 - 12
x^2 = 4
x = 2
answer
x = 2 cm
Answer:
Bella will pass Ajjan after 4h and they will have travelled 260 miles.
Step-by-step explanation:
In order to calculate the number of hours, "x", that it'll take for Bella to pass Aljan, we need to find the value of "x" that makes both equations equal. Therefore,
![60*x + 20 = 65*x\\65*x - 60*x = 20\\5*x = 20\\x = \frac{20}{5} = 4](https://tex.z-dn.net/?f=60%2Ax%20%2B%2020%20%3D%2065%2Ax%5C%5C65%2Ax%20-%2060%2Ax%20%3D%2020%5C%5C5%2Ax%20%3D%2020%5C%5Cx%20%3D%20%5Cfrac%7B20%7D%7B5%7D%20%3D%204)
In order to calculate the distance they traveled, we must use this value for "x" in any of the equations, as done below:
![y = 65*4\\y = 260](https://tex.z-dn.net/?f=y%20%3D%2065%2A4%5C%5Cy%20%3D%20260)
Bella will pass Ajjan after 4h and they will have travelled 260 miles.
Answer:
c
Step-by-step explanation:
Hello,
If 3x-1>=0 then
x>=1/3
|3x-1\=3x-1
2*|3x-1|=18
2*(3x-1)=18
6x-2=18
6x=20
x=10/3
else
x<1/3
|3x-1|=-(3x-1)
2*|3x-1|=18
2(-(3x-1))=18
-6x+2=18
-6x=16
x=-8/3
endif
Sample space is 36C4
Now, we want to know all of the combinations that have 1 digit in it.
So, we can have one here:
1XXX
X1XX
XX1X
XXX1
But we have 10 different digits to choose from. So, we need to introduce the combination term, nCr, where n is a list of all digits and r is how many we want.
Since we only want one, we will need 10C1 for the number of digits. But we need to choose three lowercases, so it becomes 10C1 × 26C3
Since it's a probability question, we need to divide that by our sample space, 36C4, and our percentage becomes 44%