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sveticcg [70]
3 years ago
15

8. Is this number correctly written in scientific notation? 6.875 x 10 yes O no​

Mathematics
1 answer:
Komok [63]3 years ago
5 0

Answer:

No

Step-by-step explanation:

I believe you have to approximate or round it off.

that will be 6.9.

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lilavasa [31]

The count of the equilateral triangle is an illustration of areas

There are 150 small equilateral triangles in the regular hexagon

<h3>How to determine the number of equilateral triangle </h3>

The side length of the hexagon is given as:

L = 5

The area of the hexagon is calculated as:

A = \frac{3\sqrt 3}{2}L^2

This gives

A = \frac{3\sqrt 3}{2}* 5^2

A = \frac{75\sqrt 3}{2}

The side length of the equilateral triangle is

l = 1

The area of the triangle is calculated as:

a = \frac{\sqrt 3}{4}l^2

So, we have:

a = \frac{\sqrt 3}{4}*1^2

a = \frac{\sqrt 3}{4}

The number of equilateral triangles in the regular hexagon is then calculated as:

n = \frac Aa

This gives

n = \frac{75\sqrt 3}{2} \div \frac{\sqrt 3}4

So, we have:

n = \frac{75}{2} \div \frac{1}4

Rewrite as:

n = \frac{75}{2} *\frac{4}1

n = 150

Hence, there are 150 small equilateral triangles in the regular hexagon

Read more about areas at:

brainly.com/question/24487155

4 0
3 years ago
What is 3.2 x 10^-4 m/h in centimeters per second?
Iteru [2.4K]
1m=100cm\\h=3600s\\\\3.2\times10^{-4}\ m/h=3.2\times10^{-4}\times\frac{100}{3600}\ cm/s\\\\=3.2\times10^{-4}\times\frac{1}{36}\ m/s=\frac{3.2}{36}\times10^{-4}\ m/s\\\\=0.888...\times10^{-4}\ m/s=\boxed{8.889\times10^{-5}\ m/s}\\\\Answer:\boxed{b)}
4 0
3 years ago
How do you solve 4/12 and 5/15 into a proportion
kirill [66]

Answer: These fractions are equivalent because they can both be divided by the same numbers.

Step-by-step explanation:First, we must find a number that can be divided into both the numerator and the denominator in order to get the same answer,

12

4

= 3

and

15

3

= 3

This means that 4 * 3 = 12 and 5*3 = 15

as a result, these fractions are equivalent because they can both be multiplied by the same number to get the result. In this case, 3.

3 0
3 years ago
Read 2 more answers
IF CORRECT YOU GET BRAINLIEST AND 20 POINTS
BARSIC [14]
The correct answer for this question would be D

hope this helped :)
7 0
4 years ago
Draw a model to show a 26-pack of candy bars divided equally among 7 people. How
spayn [35]

Answer:

the answer is around 3

Step-by-step explanation:

4 0
3 years ago
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