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vampirchik [111]
3 years ago
14

What value of x would prove a || b (a parallel to b)? (Hint: Add consecutive interior angles to solve for x).

Mathematics
1 answer:
satela [25.4K]3 years ago
7 0

Answer:

x=8

Step-by-step explanation:

19x-13+6x-7=180

x=8

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Alexxx [7]

Answer:

172 cm

Step-by-step explanation:

The total height of the first 7 people is the average of the 7 people multiplied by the number of people, which is 156 * 7 or 1092. Using the same method, the total height of the first 8 people is 158*8 or 1264. The eighth person must be 1264 - 1092 cm tall or 172 cm tall.  

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2 years ago
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evablogger [386]

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(3,8)

Step-by-step explanation:

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3 years ago
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Hi... can you tell me is this formula is right or wrong?? ​
Llana [10]

Answer:

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6 0
3 years ago
Can anybody help me with this one
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9514 1404 393

Answer:

  A(-8, 6), D(-1, -16), E(17, -3)

Step-by-step explanation:

Any point with an x-value that matches any of {-8, -1, 5, 15, 17} will prove Mariela's claim incorrect. (A function cannot use an x-value more than once.)

Those points are ...

  (-8, 6), (-1, -16), (17, -3)

5 0
3 years ago
The average thickness of books on a library shelf is 8.3 centimeters. The standard deviation is 0.6 centimeter. If 20% of the bo
jeka57 [31]

Answer:

8.8 cm

Step-by-step explanation:

-We know that the top 20% of the books are oversized.

-We therefore find the z-value of the top 20%:

z_{0.1}=8.4

#We substitute the z value in formula to solve X.

z=\frac{\bar  X-\mu}{\sigma}

Where

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-Given \sigma=0.6 \ , \mu=8.3, the minimum thickness,X can be calculated as follows:

z=\frac{\bar  X-\mu}{\sigma}\\\\0.84=\frac{\bar X-8.3}{0.6}\\\\\bar X=0.84\times 0.6+8.3\\\\=8.804\approx 8.8\ cm

Hence, the minimum thickness of the oversized books is 8.8 cm

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4 years ago
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