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3 years ago

Find x. Simplify completely.

Mathematics

1 answer:

Lilit [14]3 years ago

4 0

Step-by-step explanation:

Answer is 20.

Please use paythagoras theorem in every triangles.

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Which expression represents the distance between the points (11, 4) and (5,8)?

antiseptic1488 [7]

Answer:

$\displaystyle d = 2\sqrt{13}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Point (11, 4) → x₁ = 11, y₁ = 4

Point (5, 8) → x₂ = 5, y₂ = 8

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(5-11)^2+(8-4)^2}$
[√Radical] (Parenthesis) Subtract: $\displaystyle d = \sqrt{(-6)^2+(4)^2}$
[√Radical] Evaluate exponents: $\displaystyle d = \sqrt{36+16}$
[√Radical] Add: $\displaystyle d = \sqrt{52}$
[√Radical] Simplify: $\displaystyle d = 2\sqrt{13}$

4 0

3 years ago

In a fitness program, Pedro does 20 sit-ups on the first day, and increases this by 2 sit-ups everyday. Determine the day when t

Fittoniya [83]

Answer:

day 540

Step-by-step explanation:

He increases his number of situps by 2 each day meaning on day 1 he'd do 2 extra, on day 2 he'd do 4 extra, on day he'd do 6 extra etc. We can show this by saying +2x where x is the day he is on. Then since he started with 20 we have to add 20 so it would be 20+2x. We want to know what day it is when he does 1100 situps so we can set our equation equal to 1100 and solve for X which is the day it would be.

20+2x=1100

2x=1080

I hope this helps and please don't hesitate to ask if there is anything still unclear!

x=540

5 0

3 years ago

A clothing store is tracking how much money adults are spending on clothes each month from their only store. Which description r

den301095 [7]

A clothing store is tracking, adults who are spending on clothes each month from their only store then the adults who buy any clothes consider as population of the store.

Adults who buy any clothes represents a population, who are spending money on clothes each month from their only store.

As others adults who buy their children’s clothes does not include them selves, while buying clothes.

Adults who are not married will buy clothes buy them selves.

So, we cannot consider as population of the store.

Adults who are in college will not buy adults clothes, a teenagers.

So, they are not consider as population of the store.

Therefore,

Adults who buy any clothes consider as population of the store.

To learn more about information visit Population :

https://brainly.com/question/24216546

#SPJ1

6 0

1 year ago

The Equation is 34 + 4 ⋅ 5 = ____. (input whole numbers only)

solong [7]

Answer:

Step-by-step explanation:

34 + 4 ⋅ 5 (by PEDMAS, do multiply first)

= 34 + 20

= 54

4 0

3 years ago

Read 2 more answers

Rt - 2n = y solve for t

Nesterboy [21]

Answer:

$t=\frac{y+2n}{r}$

General Formulas and Concepts:

Pre-Alg

Equality Properties

Step-by-step explanation:

Step 1: Define equation

rt - 2n = y

Step 2: Solve for t

Add 2n to both sides: rt = y + 2n
Divide both sides by r: t = (y + 2n)/r

8 0

3 years ago