3 years ago

What is the domain of f(x) = 3x - 27

Mathematics

1 answer:

Olin [163]3 years ago

6 0

9514 1404 393

Answer:

{x | x is a real number}

Step-by-step explanation:

The domain of any polynomial function is "all real numbers."

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A 39 inch piece of steel cut into 3 pieces so that the second piece is twice as long as the first piece and the third piece is t

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expeople1 [14]

Answer:

f(x) = 2/3 x +3

Step-by-step explanation:

We know the y intercept ( where it crosses the y axis) is 3

We can calculate the slope from 2 points (-3,1) and (0,3)

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3 years ago

3/28 of the animals are birds. 4/15 are birds of prey. What fraction of the animals are birds of prey.

vova2212 [387]

Let's call animals "a", and birds "b", birds of prey, "p"

so, b= $\frac{3}{28} a$

and p= $\frac{4}{15} b$
what;s the relation of p to a?

we substitude b into the last one:

and p= $\frac{4}{15}* \frac{3}{28} a$
so:
p= $\frac{4*3}{15*28} a$

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p= $\frac{1*1}{5*7} a$

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