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marishachu [46]
3 years ago
8

In a class of 21 students, 11 students passed the test. A total of 14 students completed their homework. If there are 4 students

who did not pass the test AND did not complete their homework, what is the probability that a student passed the test GIVEN THAT they completed the homework?
Mathematics
1 answer:
Alika [10]3 years ago
5 0

Answer:

8 students

Step-by-step explanation:

You know that 11 people passed the test, so 10 people did not pass the test. 4 people didn't do their homework and didn't pass the test which means 6 people did the homework but did not pass the test. We also know that 14 students did their homework meaning that 14-6= 8 students did their homework and passed the test.

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Plzz hellp :( i will mark you the brainlist if some on helps (A rectangular prism has a length of 1 1/4 yards, a width of 2 1/2
Veseljchak [2.6K]
The volume of rectangular prism is the product of its length, width and height. 
So the volume V of prism with length 1 \frac{1}{4} yards, width 2 \frac{1}{2} yards and height of 4 yards will be:

V=1 \frac{1}{4} * 2 \frac{1}{2} *4 \\  \\ 
V=  \frac{5}{4}* \frac{5}{2}*4 \\  \\ 
V= \frac{25}{2} \\  \\ 
V=12 \frac{1}{2}

Thus the volume of prism as a mixed number in simplest form will be 12 \frac{1}{2} cubic yards


4 0
3 years ago
A first-aid booth is located 3/4 of the distance from point A to point B. At what marker on the path is the first-aid booth loca
Anastaziya [24]

3/4*8= 24/4= 6 this is 3/4 the distance between point a and b

3 0
3 years ago
How many $1 dollar bills do i need to circle the earth? Thanks
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8 0
4 years ago
True or false: sec^-1(0.5) is undefined. explain your answer
ICE Princess25 [194]

Here we get the statement:

"sec^-1(0.5) is undefined"

And we want to see if this is true or false, so let's use the properties that we know to find that this is false.

Remember that the sec function is defined as:

sec(x) = \frac{1}{cos(x)}

Then we will have:

sec^{-1}(x) = (\frac{1}{cos(x)})^{-1} =  cos(x)

Then is really trivial to see that:

sec^{-1}(0.5) =  cos(0.5) = 0.878

Then we can conclude that the function is not undefined at 0.5, so the statement is false.

Below you can see the graph of the given function, and you will see that it is never undefined.

If you want to learn more, you can read:

brainly.com/question/16453813

6 0
3 years ago
Read 2 more answers
List from least to greatest 0.25,3/8,5/16
marta [7]
---------------------------------------------
Present the numbers in decimal
---------------------------------------------
0.25  = 0.25
3/8 = 0.375
5/16 = 0.3125

<span><em>(It is easier to arrange the number using decimals)</em>
</span>
---------------------------------------------
Arrange the numbers
---------------------------------------------

0.25 (0.25) , 0.3125 (5/16) , 0.0375 (3/8)

<em>(Put the original numbers given in your final answer)</em>

---------------------------------------------
Answer: 0.25 , 5/16 , 3/8
---------------------------------------------
6 0
3 years ago
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