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Murljashka [212]
3 years ago
7

If the difference between the exterior angle of a n sided regular polygon and an (n 1) sided regular polygon is 12. find the val

ue of n.
Mathematics
1 answer:
Ann [662]3 years ago
4 0
Sum of exterior angle of a polygon is 360°
An n-sided polygon has n equal exterior angles.

360/n - 360/(n + 1) = 12
360(n + 1) - 360n = 12n(n + 1)
12n^2 + 12n = 360
n^2 + n - 30 = 0
(n - 5)(n + 6) = 0
n = 5 or n = -6

Therefore, n = 5
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At the beginning of the week the balance in your checkbook was $298.72. During the week you made a deposit of $425.69. You also
Furkat [3]

Hello!

Throughout this problem, we will add or subtract values from our original balance.

In your checkbook, there was 298.72 dollars, and then you deposited 425.69 dollars. The function you would do is addition.

$298.72 + 425.69 = $724.41

If you wrote a check, then the amount you wrote is removed from your checkbook.

$724.41 - $29.72 - $135.47- $208.28 = $350.94

Then, the bank deducted 5 dollars from your account.

$350.94 - $5.00 = $345.94

This leaves you with $345.94 at the end of the week.

Therefore, your answer is choice C, $345.94.

4 0
3 years ago
Read 2 more answers
Cam was bom weighing 8.6 pounds. Every day, he gained the same amount of weight. After 30 days, he weighed 14.9
guajiro [1.7K]

Answer:

So I'm not entirely sure about this one, but I believe he gained 0.21 pounds each day for 30 days

Step-by-step explanation:

Since Cam was born weighing 8.6 pounds and after 30 days weighed 14.9, subtract 14.9-8.6 to find how much he gained.

14.9 - 8.6 = 6.3

Now that we know how much he gained, we have to find out how much he gained per day for 30 days. To do this, divide 6.3 by 30

6.3 / 30 = 0.21

To make sure this answer is correct, multiply 0.21 by 30 and add that to 8.6. It should equal 14.9.

I hope this helps!

7 0
3 years ago
Read 2 more answers
Matthew built 30 toys airplanes in 5 hours. What was Matthew’s unit rate for building the airplanes?
vodka [1.7K]
It would be 6 toys per hour due to the fact that 30 toys divided by 5 hours would come out to 6
4 0
3 years ago
PLEASE HELP OUT!!! im super lost.
Alex73 [517]

Just replace X with the given value.

X = -3

f(-3) = 5 -  (-3)

f(-3) = 5 +3

f(-3) = 8

3 0
3 years ago
What is 6/87 of 45638???????
lapo4ka [179]

Answer:

3,147.44828

Step-by-step explanation:

\frac{6}{87}  \: of \: 45638 \\  \\  =  \frac{6}{87}  \times 45638 \\  \\  = 6 \times 524.574713 \\  \\  = 3,147.44828

5 0
3 years ago
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