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e-lub [12.9K]
3 years ago
13

Find the number of sides of a polygon if the sum of interior angles is 10 right angles.

Mathematics
2 answers:
ludmilkaskok [199]3 years ago
7 0
USE SOCRATIC ITS REALLY HELPS
Advocard [28]3 years ago
5 0

Answer:

The number of sides is 7

Step-by-step explanation:

Once the sum of interior angles is equal to 900º and the sum of interior angles is given by

S=(n-2) \cdot 180\º, \text{ as }n \text{ being the number of sides}

900\º = (n-2) \cdot 180\º

\dfrac{900\º}{180\º}  = (n-2)

5 = (n-2)

5+2 = n-2+2

\boxed{n=7}

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-6x - 16 &lt; 2x<br><br> help plz
VMariaS [17]

Answer:

-2 < x

Step-by-step explanation:

-6x - 16 < 2x

Add 6x to each side

-6x+6x - 16 < 2x+6x

-16 <8x

Divide by 8

-16/8 < 8x/8

-2 < x

8 0
3 years ago
Read 2 more answers
HeLP ME!!! 2/5w-2=7/5w solve the equation using the addition property of equality.
dangina [55]

The answer would be -2 i had the same problem on my quiz and the correct answer was -2

4 0
3 years ago
A lot of 100 semiconductor chips contains 15 that are defective. three chips are selected at random from the lot without replace
Alex787 [66]
D=event that chip selected is defective
d=event that chip selected is NOT defective

Four possible scenarios for the first two selections:
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P(DdD)=15/100*85/99*14/98=17/924
P(dDD)=85/100*15/99*14/99=17/924
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Probability of third selection being defective is the sum of all cases,
P(XXD)=P(DDD)+P(DdD)+P(dDD)+P(ddD)
=3/20


5 0
3 years ago
Christopher bought a new watch at the store one day we're having a 20% off sale if the regular price of the watch was 48 how muc
Diano4ka-milaya [45]

Answer:

$38.40

Step-by-step explanation:

to get your total you multiply

48 x 20% =9.60

then you subtract 48.00 - 9.60 = $38.40

8 0
3 years ago
A computer scans every 2.75 days and another scans every 3.5 days
Brut [27]

Answer:

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This would be every 77 days :)

5 0
3 years ago
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