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frutty [35]
2 years ago
14

What are the vertex and x-intercepts of the graph of y= x2 - 4x - 21? Select

Mathematics
1 answer:
andreev551 [17]2 years ago
5 0
The answer is c and e.

Hope this helps!
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Step-by-step explanation:

first you set up the problem, supplementary angles equal 180 degrees so the equation should look like, 4x+x+15=180. then you solve from there by combining like terms and you should get x equal to 33

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umka2103 [35]

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7 0
3 years ago
Geologists recorded the duration (in seconds) of over 500 recent eruptions of the Old Faithful geyser in
Gre4nikov [31]

Answer: C (A unimodal histogram, and the dotted line lands at 210)

Step-by-step explanation:

Khan Academy - “The sample size is reasonably large (n = 30 _> 30), so the sampling distribution of x will be approximately normal even though the population isn’t.”

5 0
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