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2 years ago

Can someone please help me thank you! will mark brainliest!

Mathematics

2 answers:

forsale [732]2 years ago

3 0

Answer:

Step-by-step explanation:

Every triangle's angles MUST add up to 180. Therefore, 43 + 43 + (6-8x) must be equal to 180. So:

43 + 43 + (6 - 8x) = 180

86 + (6 - 8x) = 180

6 - 8x = 94

-8x = 88

x = -11

jonny [76]2 years ago

3 0

X=11 i am not sure about it

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lutik1710 [3]

Answer:

The value of k is -9

Step-by-step explanation:

Subsitute

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subtract $x^2+3$ from both sides (or add $-x^2-3$ to both sides)

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2 years ago

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poizon [28]

Answer:

Step-by-step explanation:

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3 years ago

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2 years ago

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Serjik [45]

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4th seat: 11 candidates
5th seat: 10 candidates
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2 years ago

In ΔJKL, j = 74 cm, k = 14 cm and l=80 cm. Find the measure of ∠J to the nearest degree.

natita [175]

Answer:

∠J = 60°

Step-by-step explanation:

The Law of Cosines tells you ...

j² = k² +l² -2kl·cos(J)

Solving for J gives ...

J = arccos((k² +l² -j²)/(2kl))

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_____

<em>Additional comment</em>

It is pretty rare to find a set of integer side lengths that result in one of the angles of the triangle being a rational number of degrees.

6 0

1 year ago