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icang [17]
3 years ago
15

The time it takes a student to finish a Statistics test has a uniform distribution between 46 and 73 minutes. What is the probab

ility that he/she finishes within 58.5 minutes. Report your answers in decimals, using 3 values after the decimal point.
Mathematics
1 answer:
Afina-wow [57]3 years ago
7 0

Answer: The required probability is 2.167.

Step-by-step explanation:

Since we have given that

It is a uniform distribution between 46 minutes and 73 minutes.

She finishes within 58.5 minutes.

So, the general probability is :

\dfrac{58.5}{b-a}\\\\here,\\\\a=46\\\\b=73

So, the probability would be

\dfrac{58.5}{73-46}=\dfrac{58.5}{27}=2.167

Hence, the required probability is 2.167.

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Ashton designs movie sets. For one scene, he has to hang a banner across an archway that takes the shape of a parabola modeled b
Crazy boy [7]
No question is asked so I'm not sure what you are looking for but below I calculated the point where the two equations intersect:
y - x = 4 → y = x + 4
y = - x² + 6x
x + 4 = - x² + 6x
x² - 5x + 4 = 0
(x - 4)(x - 1) = 0
 x = 4, x = 1

when x = 4, then y = x + 4 = 4 + 4 = 8 → (4,8)
when x = 1, then y = x + 4 = 1 + 4 = 5 → (1,5)

The line and parabola intersect at two points: (4,8) and (1,5)



5 0
3 years ago
Read 2 more answers
Easiest question in the world no joke this time
Volgvan

Question #25:

One way to solve this is by multiplying the number of packages per serving by the number of guests.

1/4 * 16 = 4 packages to serve 16 guests. This means he doesn't have enough.

A second way to solve this is by diving the number of packages by the number of packages it takes to make on serving.

3 1/2 ÷ 1/4 = 14 guests he can serve. This means he doesn't have enough.

Question #26:

First, find common denominators.

2/3 = 8/12

1/4 = 3/12

Second, subtract.

8/12 - 3/12 = 5/12

Therefore, the tank is 5/12 full at the end of the trip.

Question #27:

1/2 is cut off then 1/3 is cut off. This means 3/6 was cut off to bundle newspapers, then 1/6 was cut off to make parcel. In all, 4/6 was cut off the original string. Afterwards, 2/6 was left over. So, just multiply; 2 * 3 = 6.

Therefore, the original string was as a total of 6 meters.

Best of Luck!

3 0
3 years ago
Which of the following is not a correct description of the graph of the function y = -2x - 7?
swat32
The graph of the function contains the points (0,-7), (1,-9), and (3,-1) is incorrect

it contains all the points except the last set...(3,-1)
y = -2x - 7
-1 = -2(3) - 7
-1 = -6-7
-1 = - 13 (incorrect)
7 0
3 years ago
Paige used 1 1/2 cups of flour and 1/4 cup of butter to make 12 muffins. How much flour and butter would palat
yanalaym [24]

Answer:

D

Step-by-step explanation:

To turn the fraction of 1 1/2 to decimal would be : 1.50 add fifty percent because you have to add 6 to 12 and six is half, so you add half. Half of 150 is 75 so add them you get 225 and as a fraction, that's 2 1/4. Already you have the first part done. Since there is only one answer with 2 1/3 your answer has to be D.

7 0
2 years ago
8x10^6 is how many time as great as 4x10^3
Nataly_w [17]

Answer:

2x10^3

Step-by-step explanation:

Factor the numerator and denominator and cancel the common factors.

7 0
2 years ago
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