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3 years ago

6

How do you make 11 using only 2 4 6 8 (you can only use the number once) you can turn the numbers into a power (example : 6^2 +

4 + 8 )
The harder the answer is the better so thank you to anyone who answers

1 answer:

kap26 [50]3 years ago

5 0

Answer:

4+8-2^0

6+4+8^0

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This is all one question show work for everything please I don’t get this !! And for the last one too

sertanlavr [38]

You count each unit square and it counts as one so for number two from point o to point a there are 5 unitsif each side we’re 5 hints and there are 6 sides you multiply five by six to get the answer of 39 for number three

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4 years ago

Chicago is home to 2.706 million people and the city sees approximately 55 million visitors each year. China has a population of

Norma-Jean [14]

China could expect a quantity of visitors of 8.512 × 10⁶ in Chicago.

<h3>How to apply direct proportions</h3>

A <em>direct</em> proportion is a <em>direct</em> relationship between two variables, which in this case is represented between the quantity of tourists in the city of Chicago and the population of the country of origin.

Let suppose the existence of direct proportionality and world has a population of 9000 million people, the quantity of Chinese visitors in the city of Chicago is determined by the following formula:

x = (1.393 × 10⁹ / 9 × 10⁹) × 55 × 10⁶

x = 8.512 × 10⁶

China could expect a quantity of visitors of 8.512 × 10⁶ in Chicago. $\blacksquare$

To learn more on direct proportions, we kindly invite to check this verified question: brainly.com/question/14389660

3 0

3 years ago

Please help it would be much appreciated.

yulyashka [42]

100
explanation: those two angles are supplementary which add up to be 180.

6 0

3 years ago

Please help, you can just slide the answer

nikdorinn [45]

Answer:

c is correct have a nice day

Step-by-step explanation:

3 0

3 years ago

1:Under what condition will the line px+py+r=0 mat be a normal to the circke x²+y²+2gx+2fy+c=0

ahrayia [7]

Answer:

<h3>#1</h3>

The normal overlaps with the diameter, so it passes through the center.

<u>Let's find the center of the circle:</u>

x² + y² + 2gx + 2fy + c = 0
(x + g)² + (y + f)² = c + g² + f²

<u>The center is:</u>

(-g, -f)

<u>Since the line passes through (-g, -f) the equation of the line becomes:</u>

p(-g) + p(-f) + r = 0
r = p(g + f)

This is the required condition

<h3>#2</h3>

Rewrite equations and find centers and radius of both circles.

<u>Circle 1</u>

x² + y² + 2ax + c² = 0
(x + a)² + y² = a² - c²
The center is (-a, 0) and radius is √(a² - c²)

<u>Circle 2</u>

x² + y² + 2by + c² = 0
x² + (y + b)² = b² - c²
The center is (0, -b) and radius is √(b² - c²)

<u>The distance between two centers is same as sum of the radius of them:</u>

d = √(a² + b²)

<u>Sum of radiuses:</u>

√(a² - c²) + √(b² - c²)

<u>Since they are same we have:</u>

√(a² + b²) = √(a² - c²) + √(b² - c²)

<u>Square both sides:</u>

a² + b² = a² - c² + b² - c² + 2√(a² - c²)(b² - c²)
2c² = 2√(a² - c²)(b² - c²)

<u>Square both sides:</u>

c⁴ = (a² - c²)(b² - c²)
c⁴ = a²b² - a²c² - b²c² + c⁴
a²c² + b²c² = a²b²

<u>Divide both sides by a²b²c²:</u>

1/a² + 1/b² = 1/c²

Proved

6 0

4 years ago

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