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3 years ago

8

the distance between two planets in the solar system is 560,800 miles. express the distance in scientific notation

1 answer:

Step2247 [10]3 years ago

8 0

The distance in scientific notation is 5.6x10^5 miles. ^ is to the power of. Start from the right of a number and count the number of spaces till you get between the first two numbers, and that is how you get your exponent. It would be a different case if you had a decimal number though. For example the scientific notation of 0.00000256 would be 2.5x10^-6. You would count the number of spaces from the left to right and the exponent would be a negative.

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Us eats about 17 gallons of popcorn each year.how many gallons of popcorn does the average person eat in 12 years?

AURORKA [14]

Answer:

204

Step-by-step explanation:

17 x 12=204

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3 years ago

Find the x-intercept and y-intercept of the line.

Mice21 [21]

$5y = 6x + 21 \\ y = \frac{6}{5} x + \frac{21}{5}$

y intercept:

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3 years ago

Mia found the area of a polygon The area is 32 square cm.

solniwko [45]

Answer:

Only the isosceles trapezoid has an area of 32 cm².

Step-by-step explanation:

Let's calculate the area of each polygon.

For the two triangles we have:

$A_{t} = \frac{bh}{2} = \frac{2 cm*4 cm}{2} = 4 cm^{2}$

This polygon does not have an area of 32 cm².

For the rectangle we have:

$A_{r} = bh = 6 cm*4 cm = 24 cm^{2}$

This polygon does not have an area of 32 cm².

For the rectangle trapezoid we have:

$A_{rt} = A_{t} + A_{r} = (4 + 24) cm^{2} = 28 cm^{2}$

So, this polygon does not have an area of 32 cm².

Finally, for the isosceles trapezoid:

$A_{it} = A_{t}*2 + A_{r} = (4*2 + 24) cm^{2} = 32 cm^{2}$

This polygon does have an area of 32 cm².

Therefore, only the isosceles trapezoid has an area of 32 cm².

I hope it helps you!

8 0

3 years ago

Please solve pleaseeee

Step2247 [10]

Step-by-step explanation:

7x + 3x + 90= 180

10x= 180-90

10x= 90

x= 90/10

x=10

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2 years ago

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Mrs. Smith bought 4 dozen doughnuts and paid a total of $13.92. What was the cost of 1 doughout

polet [3.4K]

Answer:

A $0.29

Step-by-step explanation:

4 dozen donuts is 48 donuts. (A dozen is 12 so 4 times 12 is 48). $13.92 divided by 48 is $0.29.

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3 years ago

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