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3 years ago

10

How to calculate linear distance between two points on circle circumference?

1 answer:

givi [52]3 years ago

5 0

The distance between two points on the circumference of a circle is called the arc. If the arc length subtends an angle θ to the center of the circle and the circle has a radius r, then the length of the arc is calculated by the formula;
θ/360 × 2πr.

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How do you solve 5/x=x-4

alexandr402 [8]

$\frac{5}{x}=x-4\\
x\not=0\\
5=x^2-4x\\
x^2-4x-5=0\\
x^2+x-5x-5=0\\
x(x+1)-5(x+1)=0\\
(x-5)(x+1)=0\\
x=5 \vee x=-1$

6 0

4 years ago

1. The position of a particle moving along a coordinate axis is given by: s(t) = t^2 - 5t + 1. a) Find the speed of the particle

zimovet [89]

Answer: $\left | 2t-5\right |,\ 2,\ 2t-5$

Step-by-step explanation:

Given

Position of the particle moving along the coordinate axis is given by

$s(t)=t^2-5t+1$

Speed of the particle is given by

$\Rightarrow v=\dfrac{ds}{dt}\\\\\Rightarrow v=\dfrac{d(t^2-5t+1)}{dt}\\\\\Rightarrow v=\left | 2t-5\right |$

Acceleration of the particle is

$\Rightarrow a=\dfrac{dv}{dt}\\\\\Rightarrow a=2$

velocity can be negative, but speed cannot

$\Rightarrow v=\dfrac{ds}{dt}\\\\\Rightarrow v=\dfrac{d(t^2-5t+1)}{dt}\\\\\Rightarrow v=2t-5$

3 0

3 years ago

What would x be in this sum 2(x+2)=8

MAVERICK [17]

2(x+2)=8
2x+4=8
2x=4
x=2

5 0

4 years ago

Read 2 more answers

Can somebody please help me i need this urgently.

sukhopar [10]

Answer:

multiple choice is worth 2

short response is worth 4

Step-by-step explanation:

23x + 10y = 86

28x + 5y = 76

solve by elimination

multiply the top by -1 and the bottom by 2

-23x + -10y = -86

56x + 10y = 152

add them

33x = 66

x = 2

with x = 2 plug x into one of the equations

23x + 10y = 86

23(2) + 10y = 86

46 + 10y = 86

10y = 40

y = 4

x = 2 and y = 4 so

multiple choice is worth 2

short response is worth 4

6 0

2 years ago

Convert from Fahrenheit to Celsius

Igoryamba

<h3>27.8°C</h3>

Step-by-step explanation:

Given F is 82 Degrees

To find - In Celsius ?

Answer

Using the formula:

$\frac{9}{5}C + 32 = F \\ = > C = (F - 32) \times \frac{5}{9} \\ C = (82 - 32) \times \frac{5}{9} \\ = > \frac{250}{9}C \\ = > 27.8°C$

Therefore, The answer is <u>2</u><u>7</u><u>.</u><u>8</u><u>°</u><u>C</u>

5 0

3 years ago