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aliya0001 [1]
4 years ago
12

Can I have some help finding the area to this? Can someone also explain how to figure this out?? PLEASE

Mathematics
1 answer:
nignag [31]4 years ago
4 0
Let's separate the hexagon into 5 shapes; 2 triangles on each side, and a rectangle in the middle. Now let's find the area of each of the smaller shapes.

Top left triangle:
The equation to find the area of a triangle is
(base = b, height = h, a = area)
a = b · h · \frac{1}{2}
Now let's add in our values and solve.
a = 2 · 4 · \frac{1}{2}
a = 8 · \frac{1}{2}
a = 4

Now since there are 4 of these triangles, and they're all the same size,
4 · 4 = 16
All of the triangles put together = 16cm²

The middle rectangle:
The equation to find the area of a rectangle is simple:
(w = width, l = length, a = area)
a = w · l
Now let's put in our values and solve.
a = 4 · 8
a = 32

The rectangle is 32cm²

Now let's add the areas together. 
32 + 16 = 48

The answer is <span>48cm²

Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)
</span>
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4 years ago
The brain volumes ​(cm cubed​) of 20 brains have a mean of 1105.1 cm cubed and a standard deviation of 123.5 cm cubed. Use the g
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Answer:

1332.1 \:cm^3 is neither significantly low nor significantly high.

Step-by-step explanation:

From the information given, we know that:

The mean is \bar{x}=1105.1 \:cm^{3} and the standard deviation is \sigma=123.5 \:cm^{3}.

The range rule of thumb says that:

minimum \:usual \:value=\bar{x}-2\sigma\\\\maximum \:usual \:value=\bar{x}+2\sigma

Applying these definitions, we get that

minimum \:usual \:value=1105.1-2(123.5)=858.1 \:cm^3\\\\maximum \:usual \:value=1105.1+2(123.5)=1352.1 \:cm^3

We note that 1332.1 \:cm^3 is between 858.1 \:cm^3 and 1352.1 \:cm^3, which indicates  1332.1 \:cm^3 is neither significantly low nor significantly high.

6 0
4 years ago
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