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3 years ago

I am not sure what this means? But branliest to correct answer :)

Mathematics

1 answer:

Setler79 [48]3 years ago

3 0

Answer:

Step-by-step explanation:

It is 8 combination 4- using a TI 84, type in 8, then hit math- over to probability then nCr- then 6

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How to solve this problem step by step. Make brainliest answer if its done. Please

sladkih [1.3K]

D is halfway between A and B

so the coordinates of D are (2,2)

E is halfway between A and C so the coordinates of E are (-1,1)

now you need to find the gradient/slope of DE and BC using the formula:

$\frac{y2 - y1}{x2 - x1}$

<h3>Gradient of DE: </h3>

SUB IN COORDINATES OF D AND E

$\frac{1 - 2}{ - 1 - 2}$

therefore the gradient of DE is 1/3.

<h3>Gradient of BC:</h3>

SUB IN COORDINATES OF B AND C

 $\frac{ - 2 - 0}{ - 3 - 3}$ 

therefore the gradient of BC is -2/-6 which simplifies to 1/3.

<h3>therefore, BC and DE are parallel as they both have a gradient/slope of 1/3 and parallel lines have the same gradient</h3>

6 0

4 years ago

A picture is x+20 cm in width and 2x-10 cm in length. The frame is a

Jobisdone [24]

Answer:

A = 1100cm^2

Step by step Explanation:

given the dimensions of width and length of the picture are x+20 by 2x-10 and the frame is a constant 5 cm wider from the edge of the picture to the frame, than the area of the frame is defined as (x+30)(2x)-(x+20)(2x-10) = 30x+200.

If the width is equal to the length which I assume is true if the width is constant.

than x+30=2x, which means x = 30.

if this is true than 30(30)+200 = 1100cm^2

8 0

3 years ago

Does anyone know how to like graph it for me like just tell me where they go please and thank you!

emmainna [20.7K]

Answer:(0,4), (-1,0), (-4,-2)

Step-by-step explanation:

5 0

3 years ago

Suppose that your net income for the month is $1,500 and that your total expenses are $2,500

Aleks [24]

Answer:

You will need to double your net income in order to make a profit.

Step-by-step explanation:

1500 x 2 = 3000 - 2500 = 500 which is 500 dollars profit

6 0

3 years ago

What is the value of a

Diano4ka-milaya [45]

Answer: Multiplying 3x and -x we obtain A= -3x^2

8 0

3 years ago