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Simora [160]
3 years ago
10

HELP ME LOOK AT THE PHOTO

Mathematics
1 answer:
Assoli18 [71]3 years ago
6 0

Answer:

The answer to the question provided is 7.

Step-by-step explanation:

7x + 9 = 8x + 2 \\  \frac{ - 8x \:  \:  \:  \:  =  - 8x}{ - 1x + 9 = 2 }  \\  \frac{ \:  \:  \:  \:  \:  \:  \:  \:  - 9 =  - 9}{ \frac{ - 1x}{ - 1} =  \frac{ - 7}{ - 1}  }  \\ x = 7

[I apologize if this isn't the answer]

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Given right triangle ABC with altitude BD is drawn to hypotenuse AC. If AB=5 and AD=1, what is the length of AC ? (Note: the fig
Alex17521 [72]

Answer:

x = 24.99 or 25

Step-by-step explanation:

<em>Using sin to figure out the angle of ABD, we can figure out the angle of CBD by subtracting it from 90°.</em>

sin y = (1/5)

y = 11.54°

90 - 11.54 = 78.46°

<em>Now using Pythagorean Theorem (</em><em>a²+b²=c²</em><em>) we can solve for line BD.</em>

1² + b² = 5²

1 + b² = 25

b² = 24

b = √24

<em>Now we can use tan to figure out the length of segment DC.</em>

tan(78.46) = z/√24

z = 23.99

<em>We can now combine the known length of segment AD and the length of DC to get </em><em>x</em><em>.</em>

1 + 23.99 = 24.99 or <u>about</u> 25.

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Which of the following is an irrational number?
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