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3 years ago

What are sets and how can they be represented ?

1 answer:

7 0

A set is usually denoted by a capital letter, such as A, B, or C. A set may be described by listing all of its elements enclosed in braces.

For example, if Set A consists of the numbers 2, 4, 6, and 8, we may say: A = {2, 4, 6, 8}.

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How do you do this problems?

rewona [7]

x = 6

Step-by-step explanation:

It's based on similarity of triangles

DEF ~ △XYZ

$\implies \mathsf{ \frac{DE }{ XY } = \frac{EF}{YZ} = \frac{ FD}{ZX}}$

The sides should be taken in order, like the triangles start with DE and XY so, we'll proportionate DE and XY and then the next two sides and so on.

I'm using $\mathsf{ \frac{DE }{XY } = \frac{EF}{YZ} }$ to get the value of x.

[You can use any two fractions out of the three given above. ]

$\implies \mathsf{ \frac{10}{x - 1} = \frac{8}{4} }$

$\implies \mathsf{ \frac{10}{x - 1} = 2 }$

$\implies \mathsf{ 10 = 2 (x - 1) }$

$\implies \mathsf{ 10 = 2 x - 2 }$

$\implies \mathsf{ 10 + 2= 2 x }$

$\implies \mathsf{ 1 2= 2 x }$

$\implies \mathsf{ x = 6 }$

Hence, the value of x is 6.

5 0

2 years ago

Please help with steps as well!!

satela [25.4K]

Answer:x=24

Step-by-step explanation:x/2-8=4

Add 8 to both sides

x/2=12

Multiply each side by 2

x=24

3 0

3 years ago

Read 2 more answers

A 2-quart carton of frozen yogurt costs $2.56. What is the price per fluid ounce?

lisov135 [29]

Answer:

3.12

Step-by-step explanation:

3 0

3 years ago

1. Which figure comes next in the pattern below?

LenaWriter [7]

The awnser is D
Purrr

6 0

2 years ago

Calculate the total perimeter and area of the shaded ring

Vlad1618 [11]

Answer:

be specific

Step-by-step explanation:

which shaded eing

4 0

2 years ago