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vredina [299]
2 years ago
9

How many solutions can be found for the equation 5x + 3(x − 1) = 10x − 2x − 3? (4 points) None

Mathematics
1 answer:
zzz [600]2 years ago
8 0
Infinitely many is the correct answer
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Is the following graph a function?
Sidana [21]
Your answer is d. hope this helps
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3 years ago
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Which graph represents an equation in the form =?<br><br> Please help me!!
Genrish500 [490]

That's a question about graphs.

In the Cartesian coordinate system, we have two axes: The x-axis (horizontal) and the y-axis (vertical).

When we want to represent a equation in the cartesian coodinate system, we associate a point in the x-axis and other in the y-axis. The Cartesian coordinate is represented by (x, y).

To represent some equation in a graph, we need at least two points to draw a line that cross these 2 points.

For example: To represent the equation y  = x +1, let's replace the value of <em>x</em>:

  • When<em> x = 0</em> → y = 0 + 1 = 1. Therefore, the coordenate is (0, 1).
  • When <em>x = 1</em> → y = 1 + 1 = 2. Therefore, the coordenate is (1, 2).

Finally, if we draw a line tha cross these 2 points, we will have the graph that represents y  = x +1.

Now you know about it, let's solve our problem?

In that question, we should to find the graph that represents the equation y = kx, but we don't know the value of <em>k</em>, so what should we do? It's easy:

<em>k </em>is a constant. That means that the value of k never changes. Now, let's analyze a specific case:

If <em>x = 0</em>, so <em>y = 0</em> as well. But why? We know that any number multiplied by 0 is equal 0. Therefore:

  • When If <em>x = 0 → </em>y = 0 \times k = 0. So, this graph cross the coordinate (0,0).

With the informations that the problem give to us, these are the unique things that we can find, but that's enough.

When we look at the options, just the second graph have a line that cross the coordenate (0, 0). Therefore, the correct answer is the graph below:

I hope I've helped. :D

Enjoy your studies! \o/

8 0
2 years ago
If 10^2y = 25, then 10^-y equals:<br>(a) -1/5<br>(b) 1/625<br>(c) 1/50<br>(d) 1/25<br>(e) 1/5​
Gemiola [76]
<h3><u>given</u><u>:</u></h3>

<u>10 ^{2y}  = 25</u>

<h3><u>to</u><u> </u><u>find</u><u>:</u></h3>

<u>{10}^{y}  = .......</u>

<h3><u>solution</u><u>:</u></h3>

<u>10 ^{2y}  = 25</u>

<u>(10y {)}^{2}  =  {5}^{2}</u>

<u>10y = 5</u>

<u>\frac{1}{ {10}^{y} }  =  \frac{1}{5}</u>

<u>{10}^{ - y}  =  \frac{1}{5}</u>

<u>therefore</u><u>,</u><u> </u><u>the</u><u> </u><u>correct</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>option</u><u> </u><u>E</u><u>.</u>

8 0
2 years ago
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Frank wrote 1/4 of his book
Ede4ka [16]
Let’s make common denominator
1/4 * 2/2 = 2/8 before dinner
1/8 after dinner
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He finished 3/8 of the report
7 0
2 years ago
steve runs a car wash and detail shop. he determines that 50% of customers get their car washed and vacuumed, while 72% get thei
3241004551 [841]

Answer:

The probability is 0.694

Step-by-step explanation:

Let the probability of getting a car washed be

P(W) = 72% = 0.72

Let the probability of getting a car vacuumed be

P(V) = ?

Probability of getting car washed and vacuumed is P(W n V) = 50% = 0.5

From Bayes’ theorem

P(V|W) is the probability that a customer gets their car vacuumed given that they are getting it washed

So mathematically;

P(V|W) = P(V n W)/P(W)

= 0.5/0.72 = 0.694

8 0
3 years ago
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