3 years ago

Consider the first five steps of the derivation of the Quadratic Formula.

Mathematics

1 answer:

Sergio [31]3 years ago

7 0

Answer:

Step-by-step explanation:

some people can't understand lafossefams joke

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If f(x) = 2x2 + 1 and g(x) = x2 – 7, find (f – g)(x).

nadya68 [22]

Answer: The required value is

$(f-g)(x)=x^2+8.$

Step-by-step explanation: The given functions are:

$f(x)=2x^2+1,\\\\g(x)=x^2-7.$

We are given to find the value of $(f-g)(x).$

We know that, if s(x) and t(x) are any two functions of a variable x, then we have

$(s-t)(x)=s(x)-t(x).$

Therefore, we have

$(f-g)(x)\\\\=f(x)-g(x)\\\\=(2x^2+1)-(x^2-7)\\\\=2x^2+1-x^2+7\\\\=x^2+8.$

Thus, the required value is

$(f-g)(x)=x^2+8.$

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3 years ago

Is 1/5 less than 5/8

iren [92.7K]

1/5 is less then 5/8

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3 years ago

Please help me. alg 2<br><br> Find the common ratio of the geometric sequence -13, 39, -117

grandymaker [24]

Answer:

-3

Step-by-step explanation:

you can divide the second term by the first term to solve

39/-13 = -3

then, I like to check that this fits with the third term

39*-3 = -117

so the common ratio is -3

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2 years ago

a mathematician states that her children's ages are all prime numbers that multiply together to give 7,429. she also says that t

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A fraction was multiplied by 5/6 to get 25/48 . What was the original fraction?

Lelechka [254]

5 x 5 = 25 6x8 = 48

5/8

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3 years ago

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