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3 years ago

Please help, thank you!

Mathematics

2 answers:

Alexxx [7]3 years ago

7 0

The sum of all of the angles in a quadrilatteral is 360. so add together the 3 given angles. this can be modeled by:
62+92+114+x=360
simplify a little. so:
268+x=360
subtract 368 from both sides. so:
x=92. the missing angle has a measurement of 92 degrees

Leya [2.2K]3 years ago

3 0

Add 114,92 and 62 together you'll get 268. A polygon with 4 sides the angles have to equal to 360. So subtract 360 from 268. Then you'll get your answer of 92

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Inverse function y = x2 − 18x.

Annette [7]

I hope this helps you

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3 years ago

Select all of the terms that are "like." xy2 2xy x2 -xy 2x2y xy

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Xy2 and 2xy are the only ones with common factors

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4 years ago

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A plane left 30 minutes late than its schedule time and in order to reach the destination 1500 km away in time it had to increas

schepotkina [342]

Let x= the usual speed
1500/x would equal how long it usually took the plane to read the destination
1500/(x+100) would equal how long it would take the plane now
So $\frac{1500}{x} - \frac{1500}{x+100} = \frac{1}{2}$ because it would lose 30 minutes already
Simplify:
$\frac{1500(x+100)-1500x}{x(x+100)} = \frac{1}{2}$
$\frac{1500x+150000-1500x}{x^2+100x} = \frac{1}{2}$
$\frac{150000}{x^2+100x} = \frac{1}{2}$
$\frac{300000}{x^2+100x} =1$
$300000= x^{2} +100x

x^2+100x-300000=0

x^2+600x-500x-300000=0

x(x+600)-500(x+600)

(x-500)(x+600)

x=500, x \neq -600
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The usual speed was 500 hm/hr

7 0

3 years ago

Solve using elimination 2x+5y=34 x+2y=14

Darina [25.2K]

2x + 5y = 34

x+2y = 14

Multiply the second equation by two to create like terms for one variable.

2(x+2y = 14)

2x + 4y = 28

2x + 5y = 34

2x + 4y = 28 -- Subtract.

y = 34.28 = 6

Solve for x

x + 2(6) = 14

x + 12 = 14

x = 2

Check:

2 + 2(6) = 14

2 + 12 = 14

14 = 14

Answer:

X = 2

Y = 6

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4 years ago

Help me please need it In 5mins anyone ??? !!!

Contact [7]

Answer:

it is the second one

Step-by-step explanation:

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3 years ago