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olga nikolaevna [1]
3 years ago
6

you want to purchase concert tickets that Cost $80. so far you have saved $17 and you plan to save an additional $7 a week. how

many weeks will it take you to save enough money to attend the concert?
Mathematics
1 answer:
Agata [3.3K]3 years ago
4 0
In 9 weeks he will have enough money to attend the concert
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Which represents a function?
VLD [36.1K]

Answer:

\boxed{  \text{Option \: D}}

Step-by-step explanation:

All the relations are not functions. We can determine ( identify ) whether a relation is function or not by drawing a vertical line intersecting the graph of the relation. This is called vertical line test.

  • If the vertical line intersects the graph of a relation at one point , the relation is a function .
  • If it cuts at more than one point , it is not a function. It means that if there are more points of the graph of a relation of a vertical line , same first component ( pre - image ) has more images ( second component ) which is not the function by definition.

--------------------------------------------------

Let's check all of the options :

☐ Option A :

  • The vertical line cuts the graph at two points. So , the graph does not represent a function.

☐ Option B

  • No! This is also not a function as the vertical line cuts the graph at two points.

☐ Option C

  • Nah! This too can't be called a function as the vertical line cuts the graph at two points.

☑ Option D

  • Yep! The vertical line cuts the graph at one point. Thus , the graph represents a function.

Yayy!! We found our answer. It's ' Option D '.

Hope I helped ! ツ

Have a wonderful day / night ! ♡

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4 0
2 years ago
X² - 2x=0<br> what is this...like what’s the outcome
Tanzania [10]

Answer:

x=0  x=2

Step-by-step explanation:

X² - 2x=0

Factor

x(x-2) = 0

Using the zero product property

x=0  x-2 =0

x=0  x=2

4 0
2 years ago
The sum of the interior angles of a polygon is 1080 degrees. How many sides does the polygon have?
postnew [5]

9514 1404 393

Answer:

  8

Step-by-step explanation:

The formula for the number of degrees in the sum of the interior angles of an n-sided polygon is ...

  sum of angles = 180°(n -2)

Filling in the given value and solving for n, we get ...

  1080 = 180(n -2)

  6 = n -2 . . . . . . divide by 180

  8 = n . . . . . . . . add 2

The polygon has 8 sides.

4 0
3 years ago
How do i plot 3 points on a graph when all I am given is "x=4" ? and I need to find "x and y" for 3 points.​
ipn [44]

Answer:

(4,-1) (4,0) (4,1)

Step-by-step explanation:

If you graph this, it will be a straight vertical line.  No matter what y is, x will always be 4.

8 0
1 year ago
Please answer this in two minutes
alexandr1967 [171]

Answer:

u = \sqrt{6}.

Step-by-step explanation:

This is a 45-45-90 triangle.

That means that there are two side lengths with lengths of x, and a hypotenuse with a length of xsqrt(2). We can then set up a proportion.

\frac{1}{\sqrt{3} } =\frac{\sqrt{2} }{u}

1 * u = \sqrt{3} * \sqrt{2}

u = \sqrt{6}.

Hope this helps!

3 0
3 years ago
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