Answer: First problem is 14, second one is 16.7
Step-by-step explanation: Okay so if you have a calculator you plug in 200 under a square root which is a symbol that looks like this √ maybe longer. This should help you for next time!
Answer:
There is a 90.32% probability that the cake was baked by Doug.
Step-by-step explanation:
We have these following probabilities:
A 70% probability that Doug bakes the cake.
A 30% probability that Jeremy bakes the cake.
A 40% probability that a cake baked by Doug gets a thumbs up.
A 10% that a cake baked by Jeremy gets a thumbs up.
One cake was selected at random on 10/01/2014 and got a "thumbs up".
1. Find the probability that the cake was baked by Doug.
The probability that a baked cake gets a thumbs up is:
![P = 0.7*0.4 + 0.3*0.10 = 0.31](https://tex.z-dn.net/?f=P%20%3D%200.7%2A0.4%20%2B%200.3%2A0.10%20%3D%200.31)
Of those, 0.7*0.4 = 0.28 are baked by Doug.
So the probability is:
![P = \frac{0.28}{0.31} = 0.9032](https://tex.z-dn.net/?f=P%20%3D%20%5Cfrac%7B0.28%7D%7B0.31%7D%20%3D%200.9032)
There is a 90.32% probability that the cake was baked by Doug.
Answer:
y = 2x - 1 Graph B
y = 2x + 2 Graph A
y = 2x - 5 Graph C
Step-by-step explanation:
y = mx + c
c is where the line intersect the Y axis.
<h2>Substitute x for 0:</h2>
y = 2x - 1
2 * 0 - 1 = -1.
This is graph B because it intersects at 0,-1.
y = 2x + 2
2 * 0 + 2 = 2
This is graph A because it intersects at 0,2.
y = 2x - 5
2 * 0 - 5 = -5
This is graph C because it intersects at 0,-5.