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3 years ago

Jejxjdndnndndbdbdnsnbdbdb

Mathematics

1 answer:

amm18123 years ago

3 0

I have no clue ...I'm nt so good in maths

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What is the formula for the distance between 2 points?

Vesnalui [34]

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3 years ago

The data indicate the following approximate percentages:

Mariana [72]

Answer:

Answer 1:

2,147,616

Answer 2:

5,145,330

Answer 3:

3,758,328

Answer 4:

8,157,958

Step-by-step explanation:

These are all correct i got 10/10.

8 0

3 years ago

What are the solutions to the equation: <img src="https://tex.z-dn.net/?f=2%20%7Bx%7D%5E%7B2%7D%20%20-%204x%20%2B%205%20%3D%

Orlov [11]

Answer: I don't know what you wanted to be solved, but, I solved for x

Step-by-step explanation:

Solved for x

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7 0

3 years ago

Read 2 more answers

In RST, m R =(2x+10)°, m 5=(2x+25)°, and m T=(x-5)°.

cricket20 [7]

We know that : Sum of Angles in a Triangle is equal to : 180°

⇒ In ΔRST, The Sum of Angles ∠R , ∠S , ∠T should be equal to 180°

⇒ m∠R + m∠S + m∠T = 180°

⇒ (2x + 10)° + (2x + 25)° + (x - 5)° = 180°

⇒ (2x + 2x + x) + (10° + 25° - 5°) = 180°

⇒ 5x + 30° = 180°

⇒ 5x = 180° - 30°

⇒ 5x = 150°

⇒ x = 30°

5 0

3 years ago

What are the exact solutions of x2 − 5x − 1 = 0 using x equals negative b plus or minus the square root of the quantity b square

geniusboy [140]

Answer:

$x=2.5+\frac{\sqrt{29}}{2}\\\\x=2.5-\frac{\sqrt{29}}{2}$

Step-by-step explanation:

So the question here is asking you to use the quadratic formula which is expressed as: $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\$

A quadratic can generally be expressed as: $y=ax^2+bx+c$

So using the equation you gave: $0=x^2-5x-1$

We can identify the following values: a=1, b=-5, c=-1

Btw the equation explicitly write "1" as the coefficient of x, but since it's not provided it's implied that it's 1.

So plugging in the known values, we get the following equation:

$x=\frac{5\pm\sqrt{(-5)^2-4(1)(-1)}}{2(1)}\\\\x=\frac{5\pm\sqrt{25+4}}{2}\\\\x=\frac{5\pm\sqrt{29}}{2}\\\\x=2.5+\frac{\sqrt{29}}{2}\\\\x=2.5-\frac{\sqrt{29}}{2}$

The last step just consists of taking the + and - solution, and since it asks for exact solutions you leave the 29 under the radical, and you don't approximate. There is no further simplification that can be done here.

5 0

2 years ago