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Paul [167]
3 years ago
14

Find the value of X.

Mathematics
1 answer:
Kobotan [32]3 years ago
3 0

Answer:

x = 18.46

Step-by-step explanation:

Find the last angle of the triangle.

180-90-72 = 18

The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.

cos(b) = adj/hyp

CosB=a/c rewrite to get

6/CosB (72)  = 19.41

Find the last side of the triangle using the Pythagorean theorem.

b=square root c^2 - a^2

b=square root 376.99 - 36

b= 18.46

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Answer:

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Step-by-step explanation:

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3 years ago
In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer. Smitha answered all
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Answer:

15 answers

Step-by-step explanation:

To solve this question we need to set up an equation.

Let's name the number of incorrect answers x.

<u>We can set up an equation that's essentially:</u>

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