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Leni [432]
3 years ago
8

Give all the answer right

Mathematics
1 answer:
slega [8]3 years ago
7 0

Answer:

i think 1, 3, 4 for rational

the rest for irrational

Step-by-step explanation:

i'm sorry if it's wrong >_<

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The Rhine River is in Asia. True False
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Answer:

False, Europe is the answer.

Step-by-step explanation:

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Mrs. Bailey gives a test, and her students’ scores range from 30 to 70. She decides to curve the scores, so that they range from
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Answer:

f(x) = x*3/4 + 42.5

Step-by-step explanation:

The original difference between the pair is 70 - 30 = 40

The new difference between the pair is 95 - 65 = 30

Since the differences are not the same, Mrs Bailey must first perform a (slope) multiplication by a factor of 30/40 or 3/4

Then 30 * 3/4 = 22.5

Then she can shift the scores up by 65 - 22.5 = 42.5 in order to get the range from 65 to 95

Therefore, f(x) = x*3/4 + 42.5. We can test that

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3 years ago
In a seminar of 1200 people, 65 percent were women, How many men were in the seminar?
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420

Step-by-step explanation:

If there were 1200 people, and 65 percent were women, that means the rest of the crowd are men, which is 35 percent. By multiplying 35 percent by the overall population, 1200, (1200*35/100), you'll get 420 men.

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3. Consider the sequence,-8, -5, -2, 1, ...
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Answer:

a) a_n=3\,n-11

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Step-by-step explanation:

a)

The sequence seems to be arithmetic, and with common difference d = 3.

Notice that when you add 3 units to the first term (-80, you get :

-8 + 3 = -5

and then -5 + 3 = -2 which is the third term.

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b)

Therefore, the term number 20 can be calculated from it:

a_{20}=3\,(20)-11=60-11=49

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a_n=3\,n-11\\40=3\,n-11\\40+11=3\,n\\51=3\,n\\n=\frac{51}{3} =17

so term number 17 is the one that renders a value of 40

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