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cestrela7 [59]
3 years ago
8

There are 25boys and 15girls in a class.if a student is picked at random .what is the probability that the student is a girl

Mathematics
1 answer:
emmasim [6.3K]3 years ago
7 0

Answer:

Step-by-step explanation:

Total Students in Class = 25+ 15=40

Probability= (Number of Girls in Class) ÷ (Total students in Class)

Probability of girl= 15  ÷ 40 = 0.375

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Can the expression √7+2√10 be simplified using the distributive property?
Setler [38]

Answer:

Yes,  \sqrt{2}(\sqrt{3.5}  + 2\sqrt{5} )

Step-by-step explanation:

By roots property, the roots can be re-write as multiplications or division, like this:

\sqrt[n]{a} . \sqrt[n]{b} =\sqrt[n]{ab}

Here, we can re-write both roots:

\sqrt{7} = \sqrt{3.5*2} and \sqrt{10}=\sqrt{2*5}

Now we have:

\sqrt{3.5} * \sqrt{2}  + 2 * \sqrt{2} *\sqrt{10}

And we can take out the common expression:

\sqrt{2}(\sqrt{3.5}  + 2\sqrt{5} ) ⇒ Answer

6 0
4 years ago
What is the greatest common factor of 24 and 46?
Anuta_ua [19.1K]

Answer:

GCF - 2

Step-by-step explanation:

24 - 1, 2, 3, 4, 6, 8, 12, 24

36 - 1, 2, 23, 46

Hope this helps! :)

5 0
3 years ago
Solve 2x ≤ 30. Round to the nearest ten-thousandth.
trasher [3.6K]

Answer:

Um i think it is B and i'm gonna be honest i'm not as good with math as i am in reading.

Step-by-step explanation:

7 0
3 years ago
3/10-3/4 simplified?
Fittoniya [83]
The result can be shown in both exact and decimal forms.Exact Form:<span>920</span>Decimal Form:<span>0.45</span>
8 0
3 years ago
Read 2 more answers
Identify the change in the parent function that will produce the related function shown as a dashed line
slega [8]

Answer:

Translate 2 units upward

g(x) = \sqrt{x} + 2

Step-by-step explanation:

See attachment for the functions

f(x) = \sqrt x

Required

Determine the change in f(x) that gives the dashed line

From the attachment, there is only one transformation from f(x) to the dashed line.

The transformation is a translation of 2 units, upward.

Let the dashed line be g(x)

g(x) will be:

g(x) = f(x) + 2

Substitute \sqrt x for f(x)

g(x) = \sqrt{x} + 2

4 0
3 years ago
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