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r-ruslan [8.4K]
3 years ago
11

Which is an equivalent equation solved for r?

Mathematics
2 answers:
Anna [14]3 years ago
8 0

Answer:

r= C over 2π

Step-by-step explanation:

C =  2πr

To solve for r, divide each side by  2π

C/  2π =  2πr/  2π

C/  2π =  r

Elza [17]3 years ago
8 0

Answer: r= C over 2π or r=\dfrac{C}{2\pi}

Step-by-step explanation:

Formula to find the circumference of a circle is given by :-

C=2\pi r, where r is the radius of the circle .

To find the formula for r , we need to divide both sides by 2\pi, we get

r=\dfrac{C}{2\pi}

Hence, an equivalent equation solved for r will be :-

r=\dfrac{C}{2\pi} i.e. r= C over 2π

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What is the value of the expression 3/19 divided 7/2
Andrew [12]

Answer:

Exact Form:

6/133

Decimal Form:

0.04511278

Step-by-step explanation:

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2 years ago
Bottom left Angle: <br><br> Top Angle:<br><br> Bottom right Angle:
Arturiano [62]
Angles in a triangle always add up to 180 degrees

Here, we add up all the angles given to equal it to 180 degrees:

X + X + 10 + X + 5 = 180

Collect like terms -> 3X + 10 + 5 = 180

Add the whole numbers -> 3X + 15 = 180

Take 15 from to the other side (then make it negative) to isolate the X:
3X = 180 - 15

The subtract -> 3X = 165

Take 3 over to the other side (and it it should divide 165) and isolate the X -> X = 165/3

Finally, X = 55

Now wherever you see X in the triangle, replace it with 55.

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8 0
2 years ago
Solve for x -3x+2=-11 please
larisa [96]

Answer:

6.5

Step-by-step explanation:

We need to solve out for x , the given Equation is ,

: \implies x - 3x + 2 = -11

: \implies -2x = -11 -2

: \implies -2x = -13

: \implies x = -13/-2

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3 years ago
Read 2 more answers
Select the correct answer. Joshua likes to read. He read 6 books when he was 6 years old. Every year he doubled the number of bo
astra-53 [7]

Answer: C.186


Step-by-step explanation:

1. You know that he read 6 books when he was 6 years old and every year he doubled the number of books he read the previous year.

2. Let's call n the number of book he read each year and n_t the number of books he read between the ages of 6 and 10, then:

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n=6

- At 7 years old:

n=6*2=12

- At 8 years old:

n=12*2=24

- At 9 years old:

n=24*2=48

- At 10 years old:

n=96

The total books he read between the ages of 6 and 10 is:

n_t=6+12+24+48+96\\n_t=186

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3 years ago
£1.95 multiplied by 6
Sliva [168]
<span>£1.95 multiplied by 6 is </span>£11.7
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3 years ago
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