2 years ago

Find the zeros of y=x^2-8x-3

1 answer:

4 0

This is gonna be the answer. It’s 4+sqrt(19) and 4-sqrt(19). Which is approximately 8.36 and -0.36. In x intercept form, it’s (8.36,0) and (-0.36,0) also I solved this by completing the square. I hope this helps!!! Mark as brainliest!!!

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kozerog [31]

Answer:

Step-by-step explanation:

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2 years ago

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NISA [10]

Answer:

Step-by-step explanation:

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2 years ago

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Find the standard deviation for the group of data items 4, 4, 4, 4, 6, 8 The standard deviation is (Simplify your answer. Round

marysya [2.9K]

Answer: 1.53

Step-by-step explanation:

The given data : 4, 4, 4, 4, 6, 8

Number of data values : n= 6

The mean value of the given data will be :-

$\overline{x}=\dfrac{\sum_{i=1}^{6}x_i}{n}\\\\\Rightarrow\ \overline{x}=\dfrac{30}{6}=5$

The formula to find standard deviation:_

$\sqrt{\dfrac{\sum(x-\overline{x})^2}{n}]$

Now,

$\sum_{i=1}^{6}(x_i-\overline{x})^2=(-1)^2+(-1)^2+(-1)^2+(-1)^2+(1)^2+(3)^2\\\\=1+1+1+1+1+9=14$

The standard deviation will be :-

$\sigma=\sqrt{\dfrac{14}{6}}\approx1.53$

5 0

3 years ago

4) Please help. <br> If MO=5x+34, and NO=−2(1−7x), what is the length of NO⎯⎯⎯⎯⎯⎯⎯⎯⎯?

Doss [256]

Answer:

The correct answer is 54.

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3 years ago

I need to divide and then write in simplest form 2/5÷1/6

My name is Ann [436]

Answer:

2/5÷1/6 = 2/1

Step-by-step explanation:

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2 years ago

Find the zeros of y=x^2-8x-3​

Find the zeros of y=x^2-8x-3