4 years ago

Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x?

1 answer:

4 0

For future reference, use a * to show the multiplication sign because in math x is a variable. 7*2 = 9 + x

Now multiply 7*2= 14

14 = 9 + x

Now subtract 9 from both sides to isolate the x

5 = x or x= 5

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3 years ago

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3 years ago

What is the standard deviation of a random variable q with the following probability distribution? (Do not round intermediate ca

stiks02 [169]

Answer:

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Step-by-step explanation:

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