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ad-work [718]
2 years ago
8

I REALLY NEED HELP PLEASE!!

Mathematics
1 answer:
rjkz [21]2 years ago
8 0

Answer:

4588 [in²].

Step-by-step explanation:

1) the given octagon can be imagined as 8 triangles (see the attachment). In order to calculate the required area of the octagon, it is enough to calculate the area of one triangle then increase it 8 times:

2) area of one triangle is:

37*31/2 [in²].

3) the required area of the octagon is:

31*37*8/2=31*37*4=4588 [in²].

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If there are 12 boys and 20 students, write as a ratio for boys to students in 3 ways.
ruslelena [56]

12:20

6:10

3:5

Hope that helps :)

3 0
3 years ago
Find x and y pls<br> pls write 20 characters
Ymorist [56]

Answer:

n = 135   m = 45

Step-by-step explanation:

N is 135 and m is on a strait line (180) so if you do 180 - 135 you will get the answer for m.

Hope this helped.

4 0
3 years ago
Which coordinates represent a translation of B (1,2) 3 units to the left and 2 units up
alexandr402 [8]

Answer:

(-2,4)

Step-by-step explanation:

By going 3 back you go 0,-1,-2 then you are already up 2 so if you go up 2 more you are at (-2,4). Hope this helps!

6 0
1 year ago
Pls help me solve this ​
sammy [17]

Answer:

4 kg of sugar would contain 1.2 \times 10^9 crystals.

Step-by-step explanation:

Given that 3kg of sugar contains 9 × 10⁸ crystals, let "x" represent the number of sugar crystals 4kg of sugar would contain.

Thus, set up a proportion as follows:

3 kg : 9 × 10⁸ = 4 kg : x

\frac{3}{9 \times 10^8} = \frac{4}{x}

Solve for x. Cross multiply.

3 \times x = 9 \times 10^8 \times 4

3x = 36 \times 10^8

3x = 3.6 \times 10^9

Divide both sides by 3

\frac{3x}{3} = \frac{3.6 \times 10^9}{3}

x = 1.2 \times 10^9

4 kg of sugar would contain 1.2 \times 10^9 crystals.

5 0
3 years ago
What is the value of x in the solution set of -5x-15&gt;10+20x
spayn [35]

Answer:

The answer is x < -1

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Hoped this helped!

brainly, please?

3 0
3 years ago
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