3 years ago

Solve for x. Round to the nearest tenth, if necessary.

Mathematics

1 answer:

natka813 [3]3 years ago

8 0

Answer:

25.5

Step-by-step explanation:

first find angle E.

remember, all angles in a triangle always add up to 180 degrees.

E = 180 - 90 - 20 = 70 degrees

now we use the law of sines.

ED/sin(20) = DC/sin(70) = EC/sin(D)

EC = x

sin(D) = sin(90) = 1

24/sin(70) = x/1 = x

x = 25.5

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ValentinkaMS [17]

Answer:

Step-by-step explanation:

You can see, MN consists of the three lines in the picture. So you just need to sum them tougher in an equation with it's original value 81.

5 + 3x - 8 + 4x = 81

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3 years ago

3y- 12x = 18 2y-8x= 12

arlik [135]

Answer:

x=0

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Step-by-step explanation:

3y- 12x = 18

2y-8x= 12

rearrange the equation

2y-8x=12

add 8x to both sides

2y=8x+12

divide both sides by 2

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now substitute it into 3y-12x=18

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simplify

18=18

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substitute to find y

2y-8(0)=12

2y=12

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Recheck:

3(6)-12(0)=18

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12=12

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3 years ago

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3 years ago

WILL GIVE BRAINLIEST!!!JUST HELP PLEASE!

aliya0001 [1]

Answer:

uhhh… i dunno

Step-by-step explanation:

sry i cannot help u w/ this

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