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alexandr402 [8]
2 years ago
9

Find the length of side a. please help?

Mathematics
2 answers:
GaryK [48]2 years ago
8 0

Answer:

Hello! I believe your answer is a = 3

Step-by-step explanation:

a= \sqrt{5^{2}-4^{2} } = 3

Have a good day! - Zac

ladessa [460]2 years ago
3 0

Answer: 3

Step-by-step explanation: Use the pythagorean theory!!!

a^{2} +4^{2}=5^{2}

a^{2}=5^{2}-4^{2}

a^{2} =25-16

a^{2}=8                  square root both sides √

a=2.8=3

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Which equations represent the line that is perpendicular to the line 5x − 2y = −6 and passes through the point (5, −4)? Select t
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Step-by-step explanation:

Two lines are perpendicular if the first line has a slope of m and the second line has a slope of \frac{1}{-m}.

With this information, we first need to figure out what the slope of the line is that we're given, and then we can determine what the slope of the line we're trying to find is:

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y = \frac{5}{2}x + 3

We now know that m = \frac{5}{2} for the first line, which means that the slope of the second line is m = \frac{-2}{5}. With this, we have the following equation for our new line:

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Finally, we can create our line:

y = \frac{-2}{5}x - 2

5y = -2x - 10

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