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Scorpion4ik [409]
3 years ago
12

Write and solve an equation to find the value of x and a missing angle in the triangle below.

Mathematics
1 answer:
Arturiano [62]3 years ago
5 0

Answer:

x = 27°, ∠JLK = 55°

Step-by-step explanation:

From the diagram in the question above,

The exterior angle of a triangle is equal to the sum of the two opposite side

3x+13 = 39+(2x+1)

3x+13 = 40+2x

collect like terms and solve for x

3x-2x = 40-13

x = 27°.

∠JKL = 2x+1

Substitute the value of x

∠JKL = 2(27)+1

∠JKL = 54+1

∠JKL = 55°

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Now, let's change 7.8 into the fraction
First of all, change this into mixed number:
7.8
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Then, change this into improper fraction.
Step 1:
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3 years ago
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oee [108]

Answer:

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Please see below for the steps.

Step-by-step explanation:

(a):

Use points (0,0) and (3, 78.3)

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Answer for (a) is 26.1

(b):

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Use slope formula.

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The answer for (b) is 27.9

Hope this helps!

Please mark as brainliest if correct!

Have a great day!

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1 year ago
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Answer:

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Step-by-step explanation:

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