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3 years ago

9+9000000+90+900+9000+90000+900000+1

Mathematics

1 answer:

anyanavicka [17]3 years ago

7 0

Answer:

10,000,000

Step-by-step explanation:

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(26.6.1) Which of the following is an example of perpendicular lines?

Otrada [13]

Answer:

Step-by-step explanation:

The hands on the clock at 9.00

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3 years ago

Write a quadratic equation in standard form with the given roots of -5 and 10

DerKrebs [107]

Answer:

x^2-5x+10

Step-by-step explanation:

As they are two zeros and the standard equation is

x^2+(alpha+beta)x+alpha*beta

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3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Clarge%7B%5Cbold%20%5Cred%7B%20%5Csum%20%5Climits_%7B8%7D%5E%7B4%7D%20%7Bx%7D%5E%7B2%7D%2

kiruha [24]

Answer:

No solution

Step-by-step explanation:

We have

$\sum_{x=8}^{4}x^2 + 9\left(\dfrac{\cos^2(\infty)}{\sin^2(\infty)} \right)$

For the sum it is not correct to assume

$\sum_{x=8}^{4}x^2= 8^2 + 7^2+6^2+5^2+4^2 = 64+49+36+25+16 = 190$

Note that for

$\sum_{x=a}^b f(x)$

it is assumed $a\leq x \leq b$ and in your case $\nexists x\in\mathbb{Z}: a\leq x\leq b$ for $a>b$

In fact, considering a set $S$ we have

$\sum_{x=a}^b (S \cup \varnothing) = \sum_{x=a}^b S + \sum_{x=a}^b \varnothing$ that satisfy $S = S \cup \varnothing$

This means that, by definition $\sum_{x=a}^b \varnothing = 0$

Therefore,

$\sum_{x=8}^{4}x^2 = 0$

because the sum is empty.

For

$9\left(\dfrac{\cos^2(\infty)}{\sin^2(\infty)} \right)$

we have other problems. Actually, this case is really bad.

Note that $\cos^2(\infty)$ has no value. In fact, if we consider for the case

$\lim_{x \to \infty} \cos^2(x)$ , the cosine function oscillates between $[-1, 1]$ , and therefore it is undefined. Thus, we cannot evaluate

$9\left(\dfrac{\cos^2(\infty)}{\sin^2(\infty)} \right)$

and then

$\sum_{x=8}^{4}x^2 + 9\left(\dfrac{\cos^2(\infty)}{\sin^2(\infty)} \right)$

has no solution

7 0

3 years ago

Round 132654 to the nearest thousand

lord [1]

132654 rounded to the nearest thousand is 133000

7 0

3 years ago

Read 2 more answers

Find the equation of the line parallel to y=3x+5 that passes through (0,4) y=3x+4

Contact [7]

Y=3x+4 is the line parallel to y=3x+5

7 0

3 years ago