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Fofino [41]
3 years ago
6

Represent the following expression with a single rational number.

Mathematics
1 answer:
notka56 [123]3 years ago
3 0

Answer:

1/4

Step-by-step explanation:

-2 2/5 + 3 1/4 - 3/5

-12/5 + 13/4 - 3/5 =

1/4

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A medical researcher needs 37 people to test the effectiveness of an experimental drug. If 101 people have volunteered for the t
Rashid [163]

Answer:

The number of ways to select 37 people from 101 is, 5,397,234,129,638,871,133,346,507,775.

Step-by-step explanation:

In mathematics, the procedure to select k items from n distinct items, without replacement, is known as combinations.

The formula to compute the combinations of k items from n is given by the formula:

{n\choose k}=\frac{n!}{k!\cdot (n-k)!}

Compute the number of ways to select 37 people from 101 as follows:

{101\choose 37}=\frac{101!}{37!\cdot (101-37)!}

        =\frac{101!}{37!\times 64!}\\\\=\frac{101\times 100\times 99\times....64!}{37!\times 64!}\\\\=5397234129638871133346507775

Thus, the number of ways to select 37 people from 101 is, 5,397,234,129,638,871,133,346,507,775.

5 0
3 years ago
Martina filled a 100mL container Simone filled a 1.2 liter container how much more water does Simone have than Martina
fomenos

Answer:

divide 100 ml and 1.2 liter

Step-by-step explanation:


You will get the answer in percent


3 0
3 years ago
Read 2 more answers
Which student correctly wrote the algebraic expression for the following statement?
Leno4ka [110]
Haileys work is correct so B should be the right answer
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3 years ago
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How do I find the measures of the indicated angle that makes lines U and V parallel
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Answer:

if u ll v then this angel is the twin of the one below and is 180-72

Step-by-step explanation:

7 0
3 years ago
Please help me..asap
Ivenika [448]

Answer:

D

the first one obviously isnt random
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the third one is also selective
the fourth one is random

6 0
2 years ago
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