4 years ago

Solve the following quadratic equations using completing the square x2 + 10x + 55 = 0

1 answer:

3 0

Is the “x2” supposed to be x squared?

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Debora [2.8K]

Should be 55 because they are inversely with x

7 0

4 years ago

Vinvika [58]

Answer:

$\bar x = 83.1875$

Step-by-step explanation:

Required

Determine the arithmetic mean

This is calculated as:

$\bar x = \frac{\sum x}{n}$

So, we have:

$\bar x = \frac{82 +95 +85 +80 +78 +82 +86 +96 +73 +68 +91+ 80+ 90+ 86 +72 +87}{16}$

$\bar x = \frac{1331}{16}$

$\bar x = 83.1875$

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3 years ago

Alisiya [41]

Answer:

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Step-by-step explanation:

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3 years ago

Kipish [7]

There is the answer hope it helpd if you can mark me brainliest

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3 years ago

jeka57 [31]

Answer:

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Step-by-step explanation:

i got it right on the test

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3 years ago