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jolli1 [7]
2 years ago
10

Marco's dog, Spot eats 5 cups of food every 3 days. Jack'a dog. Taco eats 10 cups of food every 5 days. Is the ratio of cup to d

ays the aame for Spot and Taco?
Mathematics
1 answer:
marysya [2.9K]2 years ago
4 0
No, the ratio is not the same
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Alice is baking a cake. She doesn’t intend to eat it, but tells you half of what you find is yours. She tells the same thing to
tankabanditka [31]

Answer: a) P = 0.5, b) P = 0.07

Step-by-step explanation:

Hi!

Lets call X₁ the time at which you arrive, and X₂ the time at which Bob arrives. Both are random variables with uniform density in the interval [0, 60] (in minutes). Their joint distribuition is uniform over the square in the image, with value P = 1/(60*60) = 1/3600.

a) For you to get more cake than Bob, you should arrive earlier. This event is A = { X₁ < X₂ }, the shaded triangle in the figure.The area of this event (set) is half the total area of the square, so P(A) = 0.5.

It makes sense, beacuse its equally probable for you or Bob to arrive earlier, as both have uniform density over the time interval.

b) In this case you arrive later than Bob, but less than 5 minutes later. So the event is B = { X₂ < X₁ < (X₂ + 5) } . This is the gray shaded area in b) part of the image. Its area is the difference two triangles (half square - blue triangle), then the probability is:

P(B) = 0.5 - \frac{(0.5*55^2)}{3600} =0.07

7 0
3 years ago
Please simplify 6d²(-7d)
andrew-mc [135]
Simplifying-
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6 0
3 years ago
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David burns 220 calories riding her bike each hour. He wants to burn 550 calories riding his bike at the same rate. what answer
JulijaS [17]

Answer:

3

Step-by-step explanation:

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3 years ago
Find the x and y intercepts of the graph of the function
Mkey [24]

Answer:

y intercepts= 0       x intercepts= none

nation:

The 2 funtions above the x axis do not intercept with the y-axis or the x-axis. They just hover above it, but never atcually touch it.

The function bellow the x-axis only intercepts the y-axis at 0,0

8 0
2 years ago
Which of these r-values represents the strongest correlation?
Rudiy27

Answer:

a. -0.9

Step-by-step explanation:

The closer you get to 1, either positive or negative, the stronger the correlation

-.9 is closest to -1, so it has the strongest negative correlation

7 0
2 years ago
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