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3 years ago

the average distance of the moon from earth is 386,242,560 m. Represent 386,242,560 in scientific notation

Mathematics

2 answers:

Dima020 [189]3 years ago

3 0

Answer:

3.86242560*10^8

Step-by-step explanation:

Scientific notation is in the form a*10^b

where b is an integer. And 1 <= a < 10

Rudiy273 years ago

3 0

Answer:

239e82927-r7-fwhuhsjdcrvjkscdlsd

Step-by-step explanation:

zpodivhopviahapiouhpodihfcpodifh

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Which expression is equivalent to: 5x2 - 10x - 7+ 5x2 + 8?

LenaWriter [7]

Answer:

Step-by-step explanation:

5x² - 10x - 7 + 5x² + 8 = 5x² + 5x² -10x - 7 + 8

= 10x² - 10x + 1

Bring like terms together and add/ subtract the like terms

4 0

3 years ago

Alex wants to fence in an area for a dog park. He has plotted three sides of the fenced area at the points E (1, 5), F (3, 5), a

hram777 [196]

Answer:

$(1,1)$

Step-by-step explanation:

Given: E, F, G, H denote the three coordinates of the area fenced

To find: coordinates of point H

Solution:

According to distance formula,

length of side joining points $(x_1,y_1)\,,\,(x_2,y_2)$ is equal to $\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

So,

$EF=\sqrt{(3-1)^2+(5-5)^2}=2\,\,units\\FG=\sqrt{(6-3)^2+(1-5)^2}=\sqrt{9+16}=5\,\,units\\GH=\sqrt{(x-6)^2+(y-1)^2}\\EH=\sqrt{(x-1)^2+(y-5)^2}$

Perimeter of a figure is the length of its outline.

$EF+FG+GH+EH=16\\2+5+\sqrt{(x-6)^2+(y-1)^2}+\sqrt{(x-1)^2+(y-5)^2}=16\\\sqrt{(x-6)^2+(y-1)^2}+\sqrt{(x-1)^2+(y-5)^2}=16-2-5\\\sqrt{(x-6)^2+(y-1)^2}+\sqrt{(x-1)^2+(y-5)^2}=9$

Put $(x,y)=(1,1)$

$\sqrt{(1-6)^2+(1-1)^2}+\sqrt{(1-1)^2+(1-5)^2}=9\\\sqrt{25}+\sqrt{16}=9\\5+4=9\\9=9$

This is true.

So, the point $(1,1)$ satisfies the equation $\sqrt{(x-6)^2+(y-1)^2}+\sqrt{(x-1)^2+(y-5)^2}=9$

So, point H is $(1,1)$ .

7 0

3 years ago

Which function can be used to find the number of ounces of coffee in the can based on its radius?

8090 [49]

Answer:

Step-by-step explanation:

The answer is A I hope it helped!

5 0

4 years ago

Help quick, it's based on polynomials . Find the area of the shape

IrinaK [193]

Answer:

Step-by-step explanation:

I got you first you want to get some little ceasers

7 0

2 years ago

Find the perimeter of the window to the nearest hundredth. also how do you do it?

k0ka [10]

I am assuming the picture is of a stained glass window in the shape of a semicircle.

Answer: 7.71 feet.

Step-by-step explanation: The formula for finding the circumference of a circle is $\frac{1}{2}$ π × d + d.

The diameter is 3 feet. Substitute this into the equation:

$\frac{1}{2}$ π × 3 + 3.

Solve -

3.14 × 3 = 9.42

$\frac{1}{2}$ of 9.42 = 4.71

4.71+3 = 7.71

Round -

The answer is already rounded.

Hope this helped!~

6 0

4 years ago