A

Mathematics

1 answer:

yulyashka [42]4 years ago

3 0

Answer:

2x -5

Step-by-step explanation:

-3 + 2(x - 1)

Distribute

-3 +2x -2

Combine like terms

2x -5

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Juliet is trying to increase her savings account and she decides that she is going save an additional $1200 every month. If her

PilotLPTM [1.2K]

5430/x=1200/12
Solve for x
X=543/10

Check
5430/(543÷10)=1200/12
It's true
The answer is d because
(534/10) 1200

4 0

3 years ago

Analyze the graph of the function f(x) to complete the statement.

ozzi

f(x) is the same as y, so we can say y = f(x)

Writing f(x) < 0 means we want to find when y < 0.

Visually, we are looking at the graph when the curve is below the horizontal x axis.

This is the portion in red that I have marked in the diagram (see attached image below). I apologize for the numbers being blurry.

The left red portion is from negative infinity to -3. In terms of a compound inequality we write $-\infty < x < -3$ which in interval notation is $(-\infty, -3)$ . The curved parenthesis tells the reader to exclude both endpoints.

The right red portion is from x = -1.1 to x = 0.9, excluding both endpoints. So we say $-1.1 < x < 0.9$ which becomes the interval notation $(-1.1, 0.9)$ . This is not ordered pair notation even though it looks identical to it.

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<h3>Answer in interval notation: $(-\infty, -3) \cup (-1.1, 0.9)$ </h3>

The "U" means "set union" which glues together the two separate intervals. Basically it's saying "x is either in the interval (-infinity, -3) or it is in the interval (-1.1, 0.9)"