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forsale [732]
2 years ago
13

In a class of 40 students, 8 are in the drama club and 12 are in the art club. If a student is selected at random, what is the p

robability that the selected student is the drama club?
Mathematics
2 answers:
babymother [125]2 years ago
4 0

Answer:

total students = 40probability of selecting a student from art club= 12/40= 3/10

Step-by-step explanation: because am big math

cestrela7 [59]2 years ago
4 0

Answer:

20%

Step-by-step explanation:

40÷8=5

100÷5=20

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Answer:

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Step-by-step explanation:

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Given that cos(30°) = cos(45°)cos(15°) + sin(45°)sin(15°), it follows that cos(30°) =
mario62 [17]

Answer:

cos(30\°) = cos(45\°-15\°)

Step-by-step explanation:

To solve this problem you must know the formula of subtraction of angles for the function cosx.

The formula is:

cos(h-d) = cos(h)cos(d) + sin(h)sin(d)

We can write 30° as: 45° - 15°

Then:

cos(30\°) = cos(45\°-15\°)

Using the formula for subtraction of angles we have:

cos(45\°-15\°) = cos(45\°)cos(15\°) + sin(45\°)sin(15\°)

Notice that we have achieved the expression shown in the statement

Finally:

cos(30\°) = cos(45\°-15\°)

8 0
3 years ago
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MrMuchimi

Answer:

a. 10 pillows

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3 years ago
Multiply (3.2 x 103) x (1.5 x 103)
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Step-by-step explanation:

↑↑↑

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4 years ago
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<u>Part A</u>

By the distance formula,

rs=\sqrt{(4-2)^2 + (4-3)^2}=\sqrt{5}\\\\st=\sqrt{(4-5)^2 + (4-0)^2}=\sqrt{17}\\\\rt=\sqrt{(2-5)^2 + (3-0)^2}=3\sqrt{2}

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