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3 years ago

Use exterior angle of triangle theorem to find the missing measure of an angle in a polygon.

Mathematics

2 answers:

Kobotan [32]3 years ago

6 0

Answer:

$\boxed{x=60}$

Step-by-step explanation:

The exterior angle theorem states that the exterior angle of a triangle is equal to the sum of the two opposite interior angles of the triangle.

$130=70+x$

Subtract 70 from both sides.

$130-70=70+x-70$

$60=x$

Drupady [299]3 years ago

5 0

Answer:

x = 60°

Step-by-step explanation:

Exterior angle is equal to the sum of opposite interior angles

x + 70 = 130

Subtract 70 from both sides

x = 130 - 70

x = 60°

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last year a business had profits of $8000 this year it will have 5 times as great what are this yours profits

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3 years ago

F (x) = 1/2x+3 what is the value of x when f(x) = 6

trapecia [35]

Answer:

Step-by-step explanation:

1/2x + 3 = 6

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3 years ago

A boat's crew rowed 33kilometers downstream, with the current, in 3hours. The return trip upstream, against the current, co

algol [13]

Answer:

The crew rowing rate in still water = 7km/hr

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Step-by-step explanation:

The distance rowed downstream with the current = 33km

Time taken to row downstream = 3hrs

The distance rowed upstream against the current = 33km

Time taken to row upstream = 11hrs

Let the crew's rowing rate in still water = Xkm/hr

Let the rate of current = Ykm/hr

For the downstream movement, we will have (X+Y). This is because the boat rowed with the current

For the upstream movement, we will have (X-Y). This is because the boat rowed against the current

Downstream Speed = distance /time

= 33/3

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Upstream speed = distance /time

= 33/11

= 3km

Hence X+Y = 11 and X-Y= 3

Add both equations. We have

X+Y+X-Y = 11 + 3

2X = 14

X= 14/2

X= 7

put X= 7 in any of the equations

7-Y= 3

Y= 7-3

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mr_godi [17]

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3 years ago

Okay so if f(n)=-6n+3 <br> What does f(2)=

madreJ [45]

Answer:

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Step-by-step explanation:

if u substitute 2 into n then -6(2)+3 = -9

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3 years ago

Use exterior angle of triangle theorem to find the missing measure of an angle in a polygon. ​

Use exterior angle of triangle theorem to find the missing measure of an angle in a polygon.