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RoseWind [281]
3 years ago
14

The end of a cave is 380 meters below the surface of the earth write an integer to represent this depth

Mathematics
2 answers:
Anastasy [175]3 years ago
6 0

-380 is the integer i need to type random stuff so i can overcome the 20 character limit but its -380

Nutka1998 [239]3 years ago
3 0

-380 meters


Since it's below the surface, you make it a negative.

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The graph of f(x) is shown below.
Gnoma [55]

(a) I have attached the graph.

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* stretch horizontally by a factor of 2

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* shift downwards by 2 units

4 0
3 years ago
Which formula has a square root?
Likurg_2 [28]

Answer:

the answer is h

Step-by-step explanation:

3 0
3 years ago
What's the intuition behind the equation 1+2+3+⋯=−1121+2+3+⋯=−112 ?
Aleks [24]
The sum clearly diverges. This is indisputable. The point of the claim above, that

1+2+3+\cdots=-\dfrac1{12}

is to demonstrate that a sum of infinitely many terms can be manipulated in a variety of ways to end up with a contradictory result. It's an artifact of trying to do computations with an infinite number of terms.

The mathematician Srinivasa Ramanujan famously demonstrated the above as follows: Suppose the series converges to some constant, call it C. Then

\begin{matrix}C&=&1&+2&+3&+4&+5&+6&+\cdots\\4C&=&&+4&&+8&&+12&+\cdots\\-3C&=&1&-2&+3&-4&+5&-6&+\cdots\end{matrix}

Now, recall the geometric power series

\displaystyle\sum_{n\ge0}x^n=1+x+x^2+x^3+\cdots=\dfrac1{1-x}

which holds for any |x|. It has derivative

\displaystyle\sum_{n\ge1}nx^{n-1}=1+2x+3x^2+4x^3+\cdots=\dfrac1{(1-x)^2}

Taking x=-1, we end up with

1+2(-1)+3(-1)^2+4(-1)^3+\cdots=1-2+3-4+\cdots=\dfrac14

and so

-3C=\dfrac14\implies C=-\dfrac1{12}

But as mentioned above, neither power series converges unless |x|. What Ramanujan did was to consider the sum 1-2+3-4+\cdots as a limit of the power series evaluated at x=-1:

\displaystyle-3C=\lim_{x\to-1^+}\sum_{n\ge1}nx^{n-1}=\lim_{x\to-1^+}\frac1{(1-x)^2}=\frac14

then arrived at the conclusion that C=-\dfrac1{12}.

But again, let's emphasize that this result is patently wrong, and only serves to demonstrate that one can't manipulate a sum of infinitely many terms like one would a sum of a finite number of terms.
4 0
3 years ago
Match the following items.
Natalija [7]

The matchings are as follows:

1) 2=3 , 4 =5   (Given)

2) 1 =3 (vertical angles are equal)

3) 1 =2 (substitution)

4) VR=VR (Reflexive)

5) Triangle VSR congruent to Triangle VTR (ASA)

6) RS=RT CPCTE

The matchings are done above.  The triangles are congruent as per ASA congruency as two angles and corresponding side is equal.

since 2 =3 and 1 = 3 we get 1=2

By CPCTE we have RS =RT

3 0
3 years ago
) If the pattern shown continues, how many black keys appear on a portable keyboard with 49 white keys? Suggestion: use equivale
andriy [413]

Answer:

35

Step-by-step explanation:

Here we see 5 black keys for every 7 white keys.

So the ratio is 5:7

If we need 49 white keys, find the amount we scale the original ratio by:

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So we are scaling by a factor of 7.

The number of black keys would be 5 * the scale of 7. = 35

So there should be 35 black keys.

5 0
3 years ago
Read 2 more answers
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