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3 years ago

F(x) = x+4 g(x) = 3x2 - 7 Find (f•g)(x)

Mathematics

1 answer:

Marizza181 [45]3 years ago

6 0

Answer:

3x³ + 12x² - 7x - 28

Step-by-step explanation:

(f • g)(x) = f(x) × g(x)

= (x + 4)(3x² - 7)

Each term in the second factor is multiplied by each term in the first factor, that is

x(3x² - 7) + 4(3x² - 7 ) ← distribute both parenthesis

= 3x³ - 7x + 12x² - 28

= 3x³ + 12x² - 7x - 28

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Read 2 more answers

Claudia is reading a book that has 360 pages.She read some of the book last week.She plans to read 46 pages today.When she does,

Ne4ueva [31]

Answer:

242 pages.

Step-by-step explanation:

Let x represent number of pages that Claudia read last week.

We have been given that Claudia is reading a book that has 360 pages. She read some of the book last week. She plans to read 46 pages today. When she does,she will be 4/5 of the way through the book.

The number of total page left after reading 46 pages and x pages last week will be equal to 4/5 of 360.

We can represent this information in an equation as:

$x+46=\frac{4}{5}\cdot 360$