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qaws [65]
2 years ago
12

Please answer correctly ,50 PoiNTs

Mathematics
2 answers:
Mariana [72]2 years ago
6 0
The average temperature increased from day 5 through day 7.

answer choice b is the correct answer.

if you look at the chart you see how the temp. increases throughout said days. :)
Alinara [238K]2 years ago
3 0
The answer is B
The average temperature increased from day 5 through day 7
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Show that 1n^ 3 + 2n + 3n ^2 is divisible by 2 and 3 for all positive integers n.
Dmitry_Shevchenko [17]

Prove:

Using mathemetical induction:

P(n) = n^{3}+2n+3n^{2}

for n=1

P(n)  = 1^{3}+2(1)+3(1)^{2} = 6

It is divisible by 2 and 3

Now, for n=k, n > 0

P(k) = k^{3}+2k+3k^{2}

Assuming P(k) is divisible by 2 and 3:

Now, for n=k+1:

P(k+1) = (k+1)^{3}+2(k+1)+3(k+1)^{2}

P(k+1) = k^{3}+3k^{2}+3k+1+2k+2+3k^{2}+6k+3

P(k+1) = P(k)+3(k^{2}+3k+2)

Since, we assumed that P(k) is divisible by 2 and 3, therefore, P(k+1) is also

divisible by 2 and 3.

Hence, by mathematical induction, P(n) = n^{3}+2n+3n^{2} is divisible by 2 and 3 for all positive integer n.

3 0
3 years ago
Solve for x.<br><br> 2x-4/10 = 2x/20
Nonamiya [84]
<span>I think it's x=<span>419 well i could be wrong just an elementary eight year old</span></span>
7 0
3 years ago
Determine whether the following argument is valid or invalid.
prisoha [69]

I think it’s the Law of Syllogism.


8 0
3 years ago
I think of a number and multiply it by 4. I then add 8 and I'm left with an answer of 30. What number did I think of? Form and s
postnew [5]

Answer: number= 5.5; equation: 4x+8=30

Step-by-step explanation:

Take x for the unknown number. Then just follow the words and turn them into mathematical symbols. Easy.

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3 years ago
5. A cruise ship travels at a constant speed of 17.25 miles per hour for
jenyasd209 [6]

Answer:

you need to have the time traveled in order to get distance.

Step-by-step explanation:

d/t=s. so speed × time = distance

5 0
2 years ago
Read 2 more answers
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