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AveGali [126]
3 years ago
12

Find the measure of the indicated angle below

Mathematics
1 answer:
Norma-Jean [14]3 years ago
8 0

Answer:

The measure of x is 70\°

Step-by-step explanation:

we know that

The formula to calculate the sum of the internal angles of a polygon is equal to

S=(n-2)*180\°

where

n is the number of sides

In this problem we have

n=9\ sides

substitute

S=(9-2)*180\°=1,260\°

Find the measure of each internal angle

Divide the sum of the internal angles by the number of sides

1,260\°/9=140\°

The value of x is half the measure of internal angle

so

x=140\°/2=70\°

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erma4kov [3.2K]

Answer:

$58.26.

Step-by-step explanation:

Total cost without sales tax and tip =  3 * 6.25 + 3 * 7.50 + 6 *1.25

= $48.75

Plus Sales tax and tip:

= 48.75 + 0.045*48.74 + 0.15*48.75

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5 0
3 years ago
G=-4x-4, solve for x
Snowcat [4.5K]

Answer:

G = -4x - 4

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Step-by-step explanation:

step 1: flip your equation and turn G into zero

ex: -4x - 4 = 0

step 2: add 4 to both sides

ex: -4x - 4 + 4 = 0 + 4   (-4x = 4)

step 3: divide both sides by -4

ex: -4x/-4 = 4/-4   (x = -1)

step 4: plug -1 into x then solve to check your answer

ex: -4(-1) - 4 = 0

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4 0
2 years ago
Which equation could be used to find the missing value of x?
Murljashka [212]

Answer:

d

Step-by-step explanation:

5 0
3 years ago
47 rounded to the nearest tenth
Hatshy [7]
This would be 50 rounded to the nearest ten
6 0
3 years ago
A picture has an area of 35cm and is 7cm long.An enlargement of the picture is made which is 21cm long.Find the area of the enla
Andrej [43]

Answer:

315 cm²

Step-by-step explanation:

Given the scale factor of 2 similar figures is a : b , then

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Here the scale factor = 7 : 21 = 1 : 3 , thus

ratio of areas = 1² : 3² = 1 : 9

That is the area of the enlargement is 9 times the original, so

area of enlargement = 35 × 9 = 315 cm²

5 0
3 years ago
Read 2 more answers
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