Answer: a) ![\dfrac{3}{13},\ b)\dfrac{9}{13}\ c)\dfrac{9}{13},\ d)\dfrac{4}{13}](https://tex.z-dn.net/?f=%5Cdfrac%7B3%7D%7B13%7D%2C%5C%20b%29%5Cdfrac%7B9%7D%7B13%7D%5C%20c%29%5Cdfrac%7B9%7D%7B13%7D%2C%5C%20d%29%5Cdfrac%7B4%7D%7B13%7D)
Step-by-step explanation:
Since we have given that
Number of red marbles = 3
Number of yellow marbles = 4
Number of green marbles = 6
Total number of marbles = 3 +4 +6 = 13
a) the marble is red?
Probability of getting a red marble = ![\dfrac{3}{13}](https://tex.z-dn.net/?f=%5Cdfrac%7B3%7D%7B13%7D)
b) the marble is not yellow?
Probability of not getting yellow = ![\dfrac{3+6}{13}=\dfrac{9}{13}](https://tex.z-dn.net/?f=%5Cdfrac%7B3%2B6%7D%7B13%7D%3D%5Cdfrac%7B9%7D%7B13%7D)
c) the marble is either red or green?
Probability of getting either red or green = P(red) + P(green) =![\dfrac{3}{13}+\dfrac{6}{13}=\dfrac{9}{13}](https://tex.z-dn.net/?f=%5Cdfrac%7B3%7D%7B13%7D%2B%5Cdfrac%7B6%7D%7B13%7D%3D%5Cdfrac%7B9%7D%7B13%7D)
d) the marble is neither red nor green?
Probability of getting neither red nor green = P(getting yellow) = ![\dfrac{4}{13}](https://tex.z-dn.net/?f=%5Cdfrac%7B4%7D%7B13%7D)
Hence, a) ![\dfrac{3}{13},\ b)\dfrac{9}{13}\ c)\dfrac{9}{13},\ d)\dfrac{4}{13}](https://tex.z-dn.net/?f=%5Cdfrac%7B3%7D%7B13%7D%2C%5C%20b%29%5Cdfrac%7B9%7D%7B13%7D%5C%20c%29%5Cdfrac%7B9%7D%7B13%7D%2C%5C%20d%29%5Cdfrac%7B4%7D%7B13%7D)
Answer:
slope = 2
Step-by-step explanation:
Calculate the slope m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (0, 8) and (x₂, y₂ ) = (- 4, 0)
m =
=
= 2
Answer:
is not possible
Step-by-step explanation:
<u><em>The question in English is</em></u>
we are building a road that links the points a = (12 ,21) and b =(17,23) another point is in c =(3,9) it is possible that a single road allows to join these three points?
we know that
The formula to calculate the slope between two points is equal to
![m=\frac{y2-y1}{x2-x1}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By2-y1%7D%7Bx2-x1%7D)
step 1
Find the slope ab
we have
a = (12 ,21) and b =(17,23)
substitute
![m=\frac{23-21}{17-12}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B23-21%7D%7B17-12%7D)
![m=\frac{2}{5}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B2%7D%7B5%7D)
step 2
Find the slope ac
we have
a = (12 ,21) and c =(3,9)
substitute
![m=\frac{9-21}{3-12}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B9-21%7D%7B3-12%7D)
![m=\frac{-12}{-9}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B-12%7D%7B-9%7D)
simplify
![m=\frac{4}{3}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B4%7D%7B3%7D)
step 3
Compare slopes ab and ac
The slopes are different
That means ----> is not possible that a single road allows to join these three points
Answer:
im trying to find this answer too dont worry :(
Step-by-step explanation:
I dont know