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Nimfa-mama [501]
3 years ago
10

Select the correct answer.

Mathematics
1 answer:
Dvinal [7]3 years ago
5 0

Answer:

A. 12

Step-by-step explanation:

60-48=12

48-36=12

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Need help with 3,4,5,6
LuckyWell [14K]
The answers are: 
3:d
4:c
5:b
6:c Note: I am not 100% sure.
4 0
3 years ago
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Paraphin [41]
The answer would be reading

7 0
3 years ago
Read 2 more answers
What are the zeros of the parabola whose equation is y = x2 + 8x + 15
Sedbober [7]

9514 1404 393

Answer:

  (1)  -5 and -3

Step-by-step explanation:

Descarte's rule of signs tells you the lack of sign changes among the coefficients means there are <em>no positive real roots</em>. That eliminates all answer choices except the first one.

__

If you want to go to the trouble, you can factor the equation:

  y = (x +3)(x +5)

These factors are zero when x = -5 and x = -3.

6 0
3 years ago
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
4 years ago
Can someone please help me with this
dedylja [7]
I think it would be most likely A the first  one.
5 0
3 years ago
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