Please please need help on this one

Find the circumference of a circle whose area is 24

zalisa [80]

The answer is: " 17.35 " .

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→ The circumference of the circle is: " 17.35 units " .

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The area, "A", of a circle:

A = $\pi$ * r² ;

Note: $\pi = 3.14$ .

The area of the circumference, "C", of a circle:

C = 2 $\pi$ r .

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Given:

A = 24 ;

Use the formula for the area, "A" of a circle, to find the radius, "r" .

Then, plug the value obtained for "r" into the formula for the circumference, "C" , of a circle:

C = 2 $\pi$ r l

To solve for the circumference, "C", of the circle.

________________

A = $\pi * r^{2}$ ;

24 = 3.14 * r² ;

↔ 3.14 * r² = 24 ;

Divide each side of the equation by "(3.14)" ;

[3.14 * r²] / 3.14 = (24) / (3.14) ;

to get:

→ r² = 7.64331210191 ;

Take the positive square root of each side of the equation;

to isolate "r" on one side of the equation; & to solve for the radius, "r" ;

→ ⁺√(r²) = ⁺√(7.64331210191) ;

to get:

→ r = 2.76281034802 ;

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Now, plug this "obtained value" for the radius, "r" into the equation for the formula for the circumference, "C" of a circle:

→ C = 2 $\pi$ * r ;

to solve for the circumference, "C", of the circle:

→ C = 2 * (3.14) * (2.76281034802) ;

= (6.28) * (2.76281034802) ;

= 17.3504489856 ;

→ round to: " 17.35 units" .

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The answer is: " 17.35 " .

__________________________________

→ The circumference of the circle is: " 17.35 units " .

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6 0

3 years ago

HELPPPP FOR 30 points!!! HELPP

lara [203]

Answer: 1. $499

2. $270.48

3 0

3 years ago

Kyla spends 60 Minutes of each day exercising. Let d be the number of days that Kyla exercises, and let m represent the total nu

stealth61 [152]

Answer: There is linear relationship between the number of days that Kyla exercise in the total minutes that she exercises.

The independent variable is 'd' and m is the dependent variable which depends on the number of days she exercise.

The linear equation for the situation is given by

$m=60d$

Step-by-step explanation:

Let d be the number of days that Kyla exercises, and let m represent the total numbers of minutes she exercise.

Kyla spends 60 Minutes of each day exercising which is constant .

Then the total numbers of minutes she exercise(m) in d days is given by

$m=60d$ which is the linear equation.

The relationship between the number of days that Kyla exercise in the total minutes that she exercises is linear, where d is the independent variable, and m is the dependent variable which depends on the number of days she exercise.

[ad d increases m increases by rate of 60 minutes per day]

The linear equation for the situation is given by

$m=60d$

7 0

3 years ago

Randi earned a profit of $60.00 on her last snow shoveling and salting job. Write an equation that can be solved to find how man

notka56 [123]

Answer:

Profit earned by Randi on her last snow shoveling and salting job= $ 60

Let number of hours spent by Randi on that day while working as a shoveler and salter = x hours

Writing the statement in terms of inequality

→ Number of hours worked= Amount of profit earned

→ x=60

→If profit is less than $60.00, then Number of hours will be less.

→If Profit is more i.e greater than $60.00, Number of hours will be more.

4 0

3 years ago

The base of a triangular field is 22m. The area of the field is 550m2 . find the height

Sergio [31]

Step-by-step explanation:

Area of triangular prism =1/2 ×base×height

550=1/2×22×h

h=550/11

h=50m

hope it helps.

6 0

3 years ago

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