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nordsb [41]
3 years ago
7

The regular octagon shown is divided into 8 congruent triangles. Each triangle has an area of 21.7 square centimeters. The

Mathematics
1 answer:
neonofarm [45]3 years ago
3 0
I believe the formula to find the height would be h= 2a/b and if you use that formula and plug in the area (21.7) of each triangle as well as the base (6) then you would get a height of 7.2 cm. I hope this is correct! :)
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Pls help I’m bad at number lines help ASAP
Masteriza [31]

Answer:

b because i more bigger

Step-by-step explanation:

4 0
3 years ago
For what values of x does the function y=2x+13 take on a positive value? a negative value?
arlik [135]

Hello,


The  answer is x= y-13 / 2 ( everything after the x= is a  fraction)

How to solve;

Start by subtracting 13 from both sides of y=2x+13, we do this to get the x on 1 side

So now we have y-13=2x

Next divide both sides by 2, we do this to get x by it self.

y-13/2=x

Now we flip the problem and there you have it!

Edit: The x does not have a Pos or neg value, The only way to know what x is, is to solve for x.

3 0
3 years ago
Is 7.52 a rational number?
Elena L [17]

Answer:

It's a decimal number......

7 0
4 years ago
Solve x2 − 10x = −13.
aev [14]

Answer:

B

Step-by-step explanation:

First, let's rearrange the given equation into something more recognizable. If we add 13 to both sides, we now have the polynomial x^{2}-10x+13. We can now use the quadratic formula to solve.

Remember that the quadratic formula is

\frac{-b+/-\sqrt{b^{2}-4ac } }{2a}

Substitute the numbers from the equation into the formula.

\frac{-(-10)+/-\sqrt{(-10)^{2}-4(1)(13) } }{2(1)}

Simplify:

\frac{10+/-\sqrt{100-52} }{2}

\frac{10+/-\sqrt{48} }{2}

Here, I'm going to assume that there was a mistype in option B because if we divide out the 2 we end up with 5+/-\sqrt{48}.

Hope this helps!

6 0
3 years ago
a plant is measured at 10 millimeters. it grows 3 millimeters per month.how tall is the plant after 8 mothers?after 3 years.
mash [69]
The plant will be 34 millimeters after 8 months and 118 millimeters after 3 years. I solved this using the formula y=10+3x, where you are solving for y. You would replace x with the number of months and then solve.
6 0
3 years ago
Read 2 more answers
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