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Tanzania [10]
3 years ago
15

Can someone please explain the steps to solve these questions.

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
3 0
Alright! So to solve these questions, you need to find out the difference. You can use ratios to solve this. For example, question #25:

A class had 30 pupils at the beginning of this school term, but now has 5 more pupils. What is the percent of increase?

The question is basically asking how much 5 is in ratio to 30. So just divide 5 (the given amount) by 30 (the total amount). The answer is 0.16, or 16%
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Give an example of each of the following, or state that such a request is impossible by referencing the proper theorem(s): (a) s
aev [14]

Answer:

There are many examples for the first request, but none for the second.

Step-by-step explanation:

a) There is a theorem which states that the sum of two convergent sequences is convergent, so any pair of convergent sequences (xn), (yn) will work (xn=1/n, yn=2/n, xn+yn=3/n. All of these converge to zero)

If you meant (xn) and (yn) to be both divergent, we can still find an example. Take (xn)=(n²) and (yn)=(1/n - n²). Then (xn) diverges to +∞ (n² is not bounded above and it is increasing), (yn) diverges to -∞ (1/n -n² is not bounded below, and this sequence is decreasing), but (xn+yn)=(1/n) converges to zero.

b) This is impossible. Suppose that (xn) converges and (xn+ýn) converges. Then (-xn) converges (scalar multiples of a convvergent sequence are convergent). Now, since sums of convergent sequences are convergent, (xn+yn+(-xn))=(yn) is a convergent sequence. Therefore, (yn) is not divergent and the example does not exist.

5 0
4 years ago
Can someone please help ? :(
Anika [276]

Answer:

I'll list the answers as coordinates (just input the second number in each coordinate)

(-2, 11)

(0, 1)

(2, -9)

(4, -19)

Step-by-step explanation:

So you see how the x column is filled out? You plug in the numbers in each area and solve for y.

So we start off with -2. You take the x out and place -2 instead. Your equation should look like this:

y = -5 (-2) + 1

Next you multiply -5 and -2, giving you 10. Your equation would look like this now:

y = 10 + 1

Next you add 10 and 1 together, and you have your answer. Keep doing the same thing, but instead of -2 for x, use 0, 2, and 4.

Hope I helped! Have a nice day or night! ^-^

8 0
3 years ago
Read 2 more answers
In how many ways can a principal choose 3 of their 30 teachers to attend a conference
dolphi86 [110]

Answer:

A principal can just ask 3 teachers

Step-by-step explanation:

There are 30 teachers just ask 3 teachers and kaboom

4 0
3 years ago
Read 2 more answers
3. What is 256% as a decimal?
tangare [24]

Answer:

2.56

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Geomtry plzzzz help 15 points
alexgriva [62]

Answer:

True.

Step-by-step explanation:

The sides of a triangle rule asserts that the sum of the lengths of any two sides of a triangle has to be greater than the length of the third side. this makes it possible for the triangle to be formed.

4 0
3 years ago
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