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olga55 [171]
3 years ago
9

Help please!

Mathematics
1 answer:
daser333 [38]3 years ago
6 0
Since it is no more than 14 years, you would subtract 4 from 14 and get 10, the two numbers you would put the inequality symbol in between would be the 10 and the variable x. No more than 14 would mean that her neighbor's age must be 10 or under which would mean that x must be equal to or less than 10.
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What is the vertex of the graph of y + 2x + 3 = –(x + 2)^2 + 1?
viva [34]
 B (-3, 3)... Hope this helps!!

6 0
3 years ago
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Drag each interval to a box to show if the function shown is increasing, decreasing, or neither over that interval.
ad-work [718]

Answer:

First, we need to know when the function is increasing, and when is decreasing.

When a function is increasing, it's because to higher <em>x-values </em>belong higher <em>y-values. </em>On the other hand, a function is decreasing when to higher <em>x-values </em>belong lower <em>y-values. </em>The effect in the graph will be a upwards direction of the function when is increasing, and a downwards direction when is decreasing.

So, according to the given graph, we see that between 0 and 4 is increasing, the higher x-values are, higher y-values are. Between 4 and 6 is decreasing, is downwards. Between 6 and 8 is increasing. Between 8 and 10 is decreasing. In finally, between 10 and 14 is neither decreasing or increasing, it remains horizontal.

All these interpretations we can expressed using math language, specifically inequalities:

  • 0 < x < 4: increasing.
  • 4 < x < 6: decreasing.
  • 6 < x < 8: increasing.
  • 8 < x < 10: decreasing.
  • 10 < x < 14: neither increasing or decreasing.

4 0
3 years ago
Solve the equation for Y<br> 2x + y = -9
Westkost [7]

Alright, so first we'll have to get y on the other side

So

2x+y=-9

   -y     -y

  +9     +9

2x+9=-y

Then divide is all by -1 so y is positive

-2x-9=y

5 0
3 years ago
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Can anyone show me the steps and answer?
valina [46]

Answer:

  (-∞, 3) ∪ (3, 4) ∪ (4, ∞)

Step-by-step explanation:

<u>Steps</u>:

1. Read and understand the question. Here, you're being asked for the domain of a rational function, one with a 2nd-degree polynomial in the denominator. The domain is the set of x-values for which the function is defined.

2. Understand that the function will be undefined when the denominator is zero, so to answer the question, you must find the values of x that make the denominator zero.

3. Use any of the methods you have been taught to determine the zeros of the denominator polynomial. For this one, it is convenient to factor it:

  x² -7x +12 = (x -3)(x -4)

The values of x that make this zero are 3 and 4, so these values are excluded from the domain.

4. Write an expression in interval notation that includes all real numbers except 3 and 4. That is, you want to translate this to interval notation:

  (-∞ < x < 3) ∪ (3 < x < 4) ∪ (4 < x < ∞)

Using what you know about interval notation, you write it as ...

  (-∞, 3) ∪ (3, 4) ∪ (4, ∞)

8 0
3 years ago
In sequences 1,7,13,19, ...., each number is 6 more than the number before it. In the sequences 1,9,17,25,...., each number is 8
butalik [34]

Answer:

I think 17, but I'm not sure.

Step-by-step explanation:

here's what I think.

So I don't know how to write it, but I got this,

14 + 2 + 1

6 0
2 years ago
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