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Tpy6a [65]
3 years ago
14

There are eight students in a class. Only one of them has passed Exam P/1 and only one of them has passed Exam FM/2. No student

has passed more than one exam. What is the probability that exactly three students from a randomly chosen group of four students have not passed Exam P/1 or Exam FM/2?
Mathematics
1 answer:
Svetach [21]3 years ago
4 0

Answer: There is probability of 0.57 chances that exactly three students from a group of four students have not passed Exam P/1 or Exam FM/2.

Step-by-step explanation:

Total number of students = 8

Number of student who has passed Exam P/1 = 1

Number of student who has passed Exam FM/2 = 1

No student has passed more than one exam.

According to question, exactly three students from a randomly chose group of four students have not passed Exam P/1 or Exam FM/2.

So, Probability will be

\frac{^6C_3\times ^2C_1}{^8C_4}\\\\=\frac{20\times 2}{70}\\\\=\frac{4}{7}\\\\=0.57

Hence, there is probability of 0.57 chances that exactly three students from a group of four students have not passed Exam P/1 or Exam FM/2.

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-2 1/2 * (1 2/3) = what?
TiliK225 [7]

Answer:

4.16

Step-by-step explanation:

Mixed Number = 4 1/6

Decimal = 4.16

Fraction = 4.1666666

Percentage = 416%

7 0
3 years ago
Read 2 more answers
In ΔPQR, r = 4.9 cm, ∠R=21° and ∠P=104°. Find the length of p, to the nearest 10th of a centimeter.
Galina-37 [17]

Answer:7 +7=14/8Step-by-step explanation:

4 0
2 years ago
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39 3.3 5.1 3.3 x find the value in the triangle shown below
prohojiy [21]

9514 1404 393

Answer:

  x = 102

Step-by-step explanation:

Isosceles triangles have equal angles opposite equal sides. There are two 39° angles in this triangle (opposite the 3.3 sides), so the third one is ...

  x° = 180° -2(39°)

  x° = 102°

_____

<em>Additional comment</em>

The triangle is "overspecified", meaning more measures are provided than are necessary to completely describe the triangle. As is often the case in such situations, the measures provided are sufficiently inconsistent that two different "right" answers are possible, depending on how you work the problem. The first attachment shows the solution above.

The second attachment shows the solution you might get by using the Law of Cosines. Note that x=101 in this case.

7 0
3 years ago
Does anyone know a quick method to divide a whole number with a decimal
alina1380 [7]
<h2>Answer_use this method </h2>

d =  \frac{d(10 {}^{k + p}  - 10 {}^{k}) }{(10 {}^{k + p}  - 10 {}^{k})}

where

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  • k=is the number of terminating digits
  • p=is the number of repeating digits

Step-by-step explanation:

Greetings !

use the above formula to change any decimal into fraction form

Thus, plug in the value and solve

Hope it helps !

8 0
2 years ago
Find the slopes of the line that goes thru the following points
Oliga [24]

Given:

Find-: Slope of the line.

Sol:

The slope of line is:

m=\frac{y_2-y_1}{x_2-x_1}

Where,

\begin{gathered} (x_1,y_1)\text{ = First point} \\  \\ (x_2,y_2)=\text{ Second point} \end{gathered}

Choose any point:

\begin{gathered} (x_1,y_1)=(-1,-4) \\  \\ (x_2,y_2)=(0,-1) \end{gathered}

So, the slope of the line is:

\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\  \\ m=\frac{-1-(-4)}{0-(-1)} \\  \\ m=\frac{-1+4}{0+1} \\  \\ m=\frac{3}{1} \\  \\ m=3 \end{gathered}

Slope of line is 3.

7 0
1 year ago
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