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gulaghasi [49]
3 years ago
7

What is (f-g)(x)? f(x)=x^4-x^2+9 g(x)=x^3+3x^2+12

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
6 0
X^4 - x^2 + 9 - (x^3 + 3x^2 + 12) =

x^4 - x^3 - 4x^2 - 3
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Given that f(x) = x2 + 10x + 21 and g(x) = x + 7, find (f•g)(x) and express
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Answer:

<h2>(f.g)x =  {x}^{2}  + 24x + 140</h2>

Step-by-step explanation:

given \\ f(x) = x ^{2}  + 10x + 21 \: and \: g(x) = x + 7

as \: we \: know \: (f.g)x \: is \: same \: as

f(g(x))

so \:

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f(x + 7) =  {x}^{2}  + 14x + 49 + 10x + 70 + 21

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therefore

(f.g)x =  {x}^{2}  + 24x + 140

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What is the equation of the line (in slope-intercept form) that passes through the point (5,−1) and is parallel to the line y=2x
tatyana61 [14]

Answer:

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\text{The slope-intercept form of an equation of a line:}\\\\y=mx+b\\\\m-slope\\b-y-intercept\\\\==========================

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5 0
3 years ago
It takes half of a yard of ribbon to make a bow. How many bows
mestny [16]

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