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andrew11 [14]
2 years ago
15

Find the distance between the two points.

Mathematics
1 answer:
ddd [48]2 years ago
5 0

Answer:

8954

Step-by-step explanation:

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Prove the statement holds for all positive integers:<br><br> 2 + 4 + 6 + ... + 2n = n² + n
crimeas [40]

Proving a relation for all natural numbers involves proving it for n = 1 and showing that it holds for n + 1 if it is assumed that it is true for any n.

The relation 2+4+6+...+2n = n^2+n has to be proved.

If n = 1, the right hand side is equal to 2*1 = 2 and the left hand side is equal to 1^1 + 1 = 1 + 1 = 2

Assume that the relation holds for any value of n.

2 + 4 + 6 + ... + 2n + 2(n+1) = n^2 + n + 2(n + 1)

= n^2 + n + 2n + 2

= n^2 + 2n + 1 + n + 1

= (n + 1)^2 + (n + 1)

This shows that the given relation is true for n = 1 and if it is assumed to be true for n it is also true for n + 1.

<span>By mathematical induction the relation is true for any value of n.</span>

6 0
3 years ago
The following are scores for students in Ms. Kennedy's math class.What is the range of the scores?
Eddi Din [679]

Answer:

The answer will be D. 181

Step-by-step explanation:

603 - 422 = 181

<em>Please mark me as the brainliest.</em>

3 0
2 years ago
The angle of elevation from a soccer ball on the ground to the top of the goal is 34. If the goal is 8 ft tall, what is the dist
Nastasia [14]
You can use the Pythagorean Theorem. Which is a^2 + b^2 = c^2.

So now to plug in the equation.

In your case a is 8 and c is 34. So now we need to solve for b.


8 squared is equal to 64.
34 squared is equal to 1156.

Now to plug things in.

64 + b^2 = 1156

Now subtract 64 from 1156.

That equals 1092.
The equation is now

b^2 = 1092

Now do the square root of 1092.

But since the square root is an irrational number you can just write b = 1092 ( but put a square root with 1092)
8 0
3 years ago
What is the area of a triangle whose vertices are D(3,3), E(3,-1), and F(-2,-5)?
Elis [28]

There is a formula which employs the use of determinants and which helps us calculate the area of a triangle if the vertices are given as (x_1,y_1),(x_2,y_2),(x_3,y_3). The formula is as shown below:

Area=\frac{1}{2}\begin{vmatrix}x_1&y_1&1 \\ x_2&y_2&1\\ x_3&y_3&1\end{vmatrix}

Now, in our case, we have: (x_1,y_1)=(3,3)

(x_2,y_2)=(3,-1), and

(x_3,y_3)=(-2,-5)

Thus, the area in this case will become:


Area=\frac{1}{2}\begin{vmatrix}3&3&1 \\ 3&-1&1\\ -2&-5&1\end{vmatrix}

Therefore, Area=\frac{1}{2}\times [[3(-1\times 1-(-5)\times 1]-3[3\times 1-(-2)\times 1]+1[3\times -5-2]]= \frac{1}{2}\times -20=-10

We know that area cannot be negative, so the area of the given triangle is <u>10 squared units</u>.



3 0
3 years ago
In the year 2003, there were approximately 600 million TVs in use and it was projected that the amount of TVs would increase at
inn [45]
In the year of 2008 there is a total of 720 million TVs.
4 0
3 years ago
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