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mina [271]
3 years ago
11

Please help..I dont get this and please Dont put a Link below please.

Mathematics
1 answer:
lianna [129]3 years ago
3 0

Answer:

x = 27, y = 74

Step-by-step explanation:

Hi again :)

Since the angles of 5x + 4 and the one adjacent to x = 14 are corresponding angles, they are equal. That means that (5x + 4) + (x + 14) = 180 degrees.

5x + 4 + x + 14 = 180

6x + 18 = 180

6x = 162

x = 27

Also, the angle (5x + 4) and (2y - 9) are vertical angles, they are equal in value. We know the value of x now, so we'll substitute that in and solve for y.

5(27) + 4 = 2y - 9

135 + 4 = 2y - 9

139 = 2y - 9

148 = 2y

y = 74

As always, lmk if you have questions.

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(08.03)Consider the following set of equations:
11Alexandr11 [23.1K]

Equation R: -3y = -3x - 9

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Replace y in Equation R with equation S:

-3(x+3) = -3x - 9

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4 0
3 years ago
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Create a matrix. use a graphing calculator to solve the system using the rref function.
zloy xaker [14]

Answer:

x=-\dfrac{44}{7}

y=\dfrac{58}{7}

Step-by-step explanation:

Arrange the equations so that all the variables are in columns (x as the first column, y as the second, equals a number as the third):

-11x - 4y = 36

5x + 5y = -10

Define and edit Matrix A.  We need a 3 x 2 matrix.  Input the coefficients and constant:

\left[\begin{array}{ccc}-11&-4&36\\5&5&-10\end{array}\right]

Find rref function, enter matrix A:  rref([A])  (press enter)

This gives you:

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which means:

x=-\dfrac{44}{7}

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8 0
2 years ago
Calculate the mean and median of each data set, and determine what type of distribution it has. Data Set 1 5 8 9 6 3 2 10 8 5 4
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Answer:

Data Set 1:

Mean = 5.73

Median = 5

Data Set 2:

Mean = 5.34

Median = 5.64

Step-by-step explanation:

<h3>The Mean:</h3>

<u>To find the mean, you need to add up all the data, and then divide this total by the number of values in the data.</u>

<u>Data Set 1:</u>

5 + 8 + 9 + 6 + 3 + 2 + 10 + 8 + 5 + 4 + 3 = 63

There are 11 values, so you divide the total by 11:

63 ÷ 11 = 5.7272.. ≈ 5.73

<u>Data Set 2:</u>

8 + 7 + 3 + 2 + 4 + 6 + 2 + 7 + 4 + 9 + 6 + 5 + 5.27 + 6 + 5.73 + 5.55 = 85.55

There are 16 values, so you divide the total by 16:

85.55 ÷ 16 = 5.34

<h3>The Median:</h3>

<u>To find the median, you need to put the values in order, then find the middle value. If there are two values in the middle then you find the mean of these two values.</u><u> </u>

<u>Data Set 1:</u>

The numbers in order:

2, 3, 3, 4, 5, (5), 6, 8, 8, 9, 10

The middle value is marked in brackets, and it is 5.

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This time there are two values in the middle. They have been in brackets The median is found by calculating the mean of these two values:

(5.55 + 5.73) ÷ 2 = 5.64

So, the median is 5.64

<u>-TheUnknownScientist</u><u> 72</u>

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Answer:

A

Step-by-step explanation:

I think it is a because if you mutiply and you will get your answer

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