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3 years ago

Can someone please help me i really don’t know this ;( !!!

Mathematics

1 answer:

Svetlanka [38]3 years ago

8 0

Answer:

the solution is (3,-5)

Step-by-step explanation:

Graph the points then get the solution

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Please answer this with explanation. Please I really am struggling. I will mark you brainalist. Please solve it Please

Hatshy [7]

Answer:

13, 11, 4, 16, 6, 22

Step-by-step explanation:

<em>Let the second digit be x and the last digit be y</em>

Given:

Data set: 13, x, 4, 16, 6, y
Mean = 12
y = 2x or x = 2y

The mean of the data is the average. The average can be calculated by determining the sum of the terms and dividing it by the total digits.

$\implies \text{Mean of data:} \ \dfrac{13 + x + 4 + 16 + 6 + y}{6} = 12$

Let us substitute the value of y (2x) in the data.

$\implies \dfrac{13 + x + 4 + 16 + 6 + 2x}{6} = 12$

Now, add all the terms in the data and simplify.

$\implies \dfrac{39 + x +2x}{6} = 12$

$\implies \dfrac{39 + 3x}{6} = 12$

Distribute the denominators and simplify.

$\implies \dfrac{39}{6} + \dfrac{3x}{6} = 12$

$\implies \dfrac{13}{2} + \dfrac{x}{2} = 12$

$\implies 6.5 + \dfrac{x}{2} = 12$

Subtract 6.5 both sides and simplify.

$\implies 6.5 + \dfrac{x}{2} - 6.5 = 12 - 6.5$

$\implies \dfrac{x}{2} = 5.5$

Use cross multiplication and simplify.

$\implies x= 5.5 \times 2$

$\implies x= 11$

To determine the value of "y", simply substitute the value of "x" into the expression that represents the value of "y".

$\implies y = 2x$

$\implies y = 2(11)$

$\implies y = 22$

When the x and y values are substituted in the data, we get;

⇒ 13, 11, 4, 16, 6, 22

Therefore, the data is 13, 11, 4, 16, 6, 22.

8 0

2 years ago

Lauren bought 6 yellow roses, 10 orange roses, and 12 pink roses to make a bouquet. What is the ratio of the number of yellow ro

7nadin3 [17]

Answer: 1/12

Step-by-step explanation:

It asked for 6 yellow roses to 6.

Then it asked for the total so 6+10+12=72

6/72.

Then simplify it 6/6= 1

72/6= 12

So the answer is 1/12

6 0

3 years ago

Trọng lượng một sp là bnn pp chuẩn với trung bình là 20,5 và độ lệch chuẩn là 2. Lấy ngẫu nhiên 4 sp để kiểm tra thì với xs 0,95

Illusion [34]

You need to make this is all languages if you want help thank you . :)

8 0

3 years ago

Expand and simplity 4(2x - 1)3(2x 5)<br> Plzz help me

k0ka [10]

Answer:

240^2 - 120x

Step-by-step explanation:

4(2x - 1) x 3 x (2x 5)

4(2x - 1) x 3 x (10x)

4(2x - 1) x 3 x 10x

120x x (2x-1)

240^2 - 120x

7 0

3 years ago

Find the gradient of the line segment between the points (4,3) and (5,6).

vesna_86 [32]

<h2>SOLVING</h2>

$\Large\maltese\underline{\textsf{A. \space What is Asked}}$

Find the gradient of the line segment between the points $\bf{(4,3)\:and\:(5,6)}$

$\Large\maltese\underline{\textsf{B. This problem has been solved!}}$

The formula used, here is

$\bf{m=\dfrac{y2-y1}{x2-x1}$

$\cline{1-2}$

Now let's put in the co-ordinates from these two points.

$\bf{m=\dfrac{6-3}{5-4}}$ | subtract on top & bottom

$\bf{m=\dfrac{3}{1}}$ | divide

$\bf{m=3}$

$\cline{1-2}$

$\bf{Result:}$

$\bf{=m=3}$

$\boxed{\bf{ aesthetic\not101}}$

3 0

2 years ago

Read 2 more answers