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Jobisdone [24]
3 years ago
12

Which of the following polygons has five lines of symmetry?

Mathematics
1 answer:
Ivan3 years ago
6 0
Pentagons are and example.
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Unit 5: Systems of Equations & Inequalities Homework 2: Solving Systems by Substitution
Oksanka [162]

By solving the system by substitution, we got the solutions:

x = 2/3, y = 8/3.

<h3>Solving the system of equations:</h3>

I guess we need to solve problem number 5, so let's do that.

Here we have the system of equations:

y = x + 2

3x + 3y = 6

To solve it by substitution, we need to isolate one of the variables in one of the equations and then replace that in the other equation.

For example, here we can see that "y" is already isolated in the first equation, so we can use that and replace it in the second equation.

3x + 3y = 6

3x + 3*(y = x + 2) = 6

3x + 3*(x + 2) = 6

Now we have an equation that only depends on x, so we can solve it:

3x + 3x + 2 = 6

6x + 2 = 6

6x = 6 - 2 = 4

x = 4/6 = 2/3.

Now we can use the first equation to find the value of y:

y = x + 2 = 2/3 + 2 = 2/3 + 6/3 = 8/3.

Then the solution is:

x = 2/3 and y = 8/3.

If you want to learn more about systems of equations, you can read:

brainly.com/question/13729904

6 0
3 years ago
How do I describe each pattern in words <br> 13, 23, 33, 43
mariarad [96]
The pattern is added in 10 like 13 + 10=23
6 0
4 years ago
Read 2 more answers
For a standard normal distribution, which of the following variables always equals 1?
STatiana [176]

Answer:

Z=1

Step-by-step explanation:

5 0
3 years ago
PLEASE HELP The cost in dollars C(x), where x is the number of miles driven, of renting a car for a day is C(x)=0.55x+36. What i
Nina [5.8K]

Answer:

independent is miles, dependent is dollars

Step-by-step explanation:

y depends on x

x is always independent variable and y is dependent.

8 0
4 years ago
There are 16 cats and 14 dogs in a local animal shelter.
nevsk [136]
The answer would be D because it is comparing cats and dogs in the shelter. I assume you made a typo saying neiborhood instead of shelter. Hope this helps you










4 0
4 years ago
Read 2 more answers
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