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LenKa [72]
2 years ago
8

For ΔABC, which two relationships are true?

Mathematics
1 answer:
Phoenix [80]2 years ago
6 0

The two correct relationships are:

cos(\theta)=\frac{AB}{AC} = sin(90-\theta)\\\\sin(\theta)=\frac{BC}{AC} = cos(90-\theta)

<h3>What is a right-angled triangle?</h3>

The triangle shown is a right-angled triangle

Considering <(90-\theta)^o

cos(90-\theta)=\frac{BC}{AC} \\\\sin(90-\theta)=\frac{AB}{AC}\\\\tan(90-\theta)=\frac{AB}{BC}

Considering <\theta

cos(\theta)=\frac{AB}{AC} \\\\sin\theta)=\frac{BC}{AC}\\\\tan(\theta)=\frac{BC}{AB}

Comparing <\theta and <(90-\theta)^o, the true statements are:

cos(\theta)=\frac{AB}{AC} = sin(90-\theta)\\\\sin(\theta)=\frac{BC}{AC} = cos(90-\theta)

Learn more on trigonometry here: brainly.com/question/20519838

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Step-by-step explanation:

1. 5(+3)=−45

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3 years ago
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Answer:

13

Step-by-step explanation:

Write an equation setting the lengths equal to each other.

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Move the variable (x) to one side. I'm going to subtract 2x from both sides.

5x - 2x + 3 = 2x - 2x + 9

3x + 3 = 9

Subtract 3 from both sides

3x +3 - 3 = 9 - 3

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Divide both sides by 3

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Now use 2x + 9 to find the length of EG by substituting 2 in for x.

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You could also use 5x + 3 to find the length of EG by substituting 2 in for x.

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