Please helppp meee I am struggling

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

8 0

Answer:

the number of cookies ordered

Step-by-step explanation:

When an equation is written in the form ...

(left variable) = (some expression involving one or more right variables)

we usually describe the "left variable" as the "dependent variable" and the "one or more right variables" as the "independent variable(s)".

Here, the equation is given as ...

C = 3s + 30

This tells you C is the dependent variable, and s is the independent variable. The description also says "C is the number of cookies." Since you know that the dependent variable is the number of cookies, you can answer the question ...

the dependent quantity is the number of cookies ordered. (matches the first choice)

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Given that f(x) = x2 + 5x – 14 and g(x) = x + 7, find (fºg)(x) and express

mel-nik [20]

Answer:

We get $\mathbf{(fog)(x)=x^3+12x^2+21x-98}$

Step-by-step explanation:

We are given:

$f(x) = x^2 + 5x - 14 \\ g(x) = x + 7$

We need to find $(f o g)(x)$

We know that: $(fog)(x)=f(x)\times g(x)$

We multiply the both terms i.e. f(x) and g(x) to get our answer.

$(fog)(x)\\=f(x)\times g(x)\\=(x^2+5x-14)(x+7)\\=(x^2+5x-14)(x)+(x^2+5x-14)(7)\\=x^3+5x^2-14x+7x^2+35x-98\\Combining\:like\:terms:\\=x^3+5x^2+7x^2-14x+35x-105\\=x^3+12x^2+21x-98$