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3 years ago

Angles 2 and 7 are called what

Mathematics

1 answer:

Phantasy [73]3 years ago

3 0

Answer:

Alternate Exterior Angles

Step-by-step explanation:

Alternate exterior angles are two angles on the opposite outer sides of two parallel lines cut by a transversal.

The two angles given, 2 and 7, are alternate exterior angles.

Hope it helps! :)

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3 years ago

Aaron and noah wanted to have a contest to see which of their paper airplanes could fly the longest distance. Aaron's plane flew

Marina CMI [18]

Aaron's plane flew 3.21 meters further than Noah's plane.

Explanation

Aaron's plane flew 4 meters and Noah's plane flew 79 centimeters.

So, first we need to convert 79 centimeters into meters.

We know that, 1 centimeter = 0.01 meter

So, 79 centimeters = $(0.01*79)meter= 0.79 meter$

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4 years ago

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3 years ago

What is the value of 3x 2 squared + 5x when x=3

Serhud [2]

3•2=6. When you square 6, you get 36. Add 5x to that. 5x=15. 36+15=51

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6 0

4 years ago

FINDDD VALUE OF Y!!!!

solmaris [256]

Answer:

The sum of the internal ángles = 360°

(3y+40)° and (3x-70°) are suplementary angles = 180°

then:

(3x-70) + (3y+40) + 120 + x = 360 ⇒ first eq.

(3y+40) + (3x-70) = 180 ⇒ second eq

development:

from the first eq.

3x + x + 3y = 360 + 70 - 40 - 120

4x + 3y = 430 - 160

4x + 3y = 270 ⇒ third eq.

3y = 270 - 4x

y = (270 - 4x) / 3 ⇒ fourth eq.

from the secon eq.:

3y + 3x = 180 + 70 - 40

3y + 3x = 250 - 40

3y + 3x = 210 ⇒ fifth eq.

multiply by -1 the fifth eq and sum with the third eq.

-3y - 3x = -210 ⇒ (fifth eq. *-1)

3y + 4x = 270

⇒ 0 + x = 60

x = 60°

from the fourth eq.

y = (270-4x)/3

y = (270-(4*60)) / 3

y = (270 - 240) / 3

y = 30/3

y = 10°

Probe:

from the first eq.

(3x-70) + (3y+40) + 120 + x = 360

3*60 - 70 + 3*10 + 40 + 120 + 60 = 360

180 - 70 + 30 + 40 + 120 + 60 = 360

180 + 30 + 40 + 120 + 60 - 70 = 360

430 - 70 = 360

Answer:

y = 10

7 0

3 years ago