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Artyom0805 [142]
3 years ago
9

What is the sum of the measures of the interior angles of an octagon?

Mathematics
2 answers:
pochemuha3 years ago
5 0
ANY n-sided polygon has interior angles that sum to 180(n - 2) degrees. For an octagon this is 180 x 6 ie 1080 degrees (so the individual interior angles of a regular octagon are 135 degrees).      

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irina [24]3 years ago
4 0

Answer:

This is the correct answer and here is why

Step-by-step explanation:

An octagon had 8 Sides (The sides of the polygon is N)

You use the formula:

I=(n *number of sides* - 2) = 180*

I=(8-2)180

I=(6)180

6x180= 1080

N=1080

Therefore the Sum of the measures of the Interior angles of an octagon is: <u>1080</u>

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Find the percent of discount. Round to the nearest tenth
maxonik [38]

Answer: 69%

Step-by-step explanation:

16820x100= 1682000

1682000÷24365=69.033

8 0
3 years ago
50 points! I understand A. and B. but I would really appreciate help with C.
FromTheMoon [43]

Answer:

51.72\text{ cells per hour}

Step-by-step explanation:

So, the function, P(t), represents the number of cells after t hours.

This means that the derivative, P'(t), represents the instantaneous rate of change (in cells per hour) at a certain point t.

C)

So, we are given that the quadratic curve of the trend is the function:

P(t)=6.10t^2-9.28t+16.43

To find the <em>instanteous</em> rate of growth at t=5 hours, we must first differentiate the function. So, differentiate with respect to t:

\frac{d}{dt}[P(t)]=\frac{d}{dt}[6.10t^2-9.28t+16.43]

Expand:

P'(t)=\frac{d}{dt}[6.10t^2]+\frac{d}{dt}[-9.28t]+\frac{d}{dt}[16.43]

Move the constant to the front using the constant multiple rule. The derivative of a constant is 0. So:

P'(t)=6.10\frac{d}{dt}[t^2]-9.28\frac{d}{dt}[t]

Differentiate. Use the power rule:

P'(t)=6.10(2t)-9.28(1)

Simplify:

P'(t)=12.20t-9.28

So, to find the instantaneous rate of growth at t=5, substitute 5 into our differentiated function:

P'(5)=12.20(5)-9.28

Multiply:

P'(5)=61-9.28

Subtract:

P'(5)=51.72

This tells us that at <em>exactly</em> t=5, the rate of growth is 51.72 cells per hour.

And we're done!

7 0
2 years ago
An ant weigh 0.000003 kg. How much would 2 ants weigh, expressed in scientific notation?
Alik [6]
The correct answer is 6*10^-6 ..........................
5 0
3 years ago
Workout the value of x.
anyanavicka [17]
Answer: The value of X is 97 degrees


Explanation:
7 0
2 years ago
A population increases 3% each year. If the city is now 5 million, what will the population be in 5 years?
Step2247 [10]
5 million x 3% = 150,000
1 Year = 5,150,000

5.15 million x 3% = 154,500
2 Years = 5,304,500

5,304,500 x 3% = 159,135
3 Years = 5,463,635

5,463,635 x 3% = 163,909.05
4 Years = 5,627,544.05

5,627,544.05 x 3% = 168,826.322
5 Years = 5,796,370.37

After 5 years, the population will be 5,796,370.37
8 0
3 years ago
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