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3 years ago

14

After getting 5 new rocks, George gave half of his rock collection to Susan. If George gave Susan 36 rocks, which equation could

be used to determine how many rocks George started with?

2 answers:

Aleksandr [31]3 years ago

6 0

Answer:

63 is the answer

DanielleElmas [232]3 years ago

3 0

George started with 67 Rocks.

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max2010maxim [7]

I think the first one c and the second one a

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2 years ago

In a circle an arc length 10 is intercepted by a central angle of 2/3 radius

djverab [1.8K]

We have been given that in a circle an arc length 10 is intercepted by a central angle of 2/3. We are supposed to find the radius of the circle.

We will use arc-length formula to solve our given problem.

$l=r\theta$ , where,

$l$ = Arc length,

$r$ = Radius,

$\theta$ = Central angle corresponding to arc length.

Upon substituting our given values in arc-length formula, we will get:

$10=r\cdot \frac{2}{3}$

$10\cdot \frac{3}{2}=r\cdot \frac{2}{3}\cdot \frac{3}{2}$

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Therefore, the radius of the given circle would be 15 units.

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3 years ago

Please send answers!!

xz_007 [3.2K]

Answer:

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Step-by-step explanation:

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4 0

2 years ago

The circle below is centred at point (2,-1) and has a radius of length 3 what is its equation ?

NeTakaya

Answer:

Option C

Step-by-step explanation:

The standard form of equation of a cirle is:

(x-h)^2+ (y-k)^2=r^2

In the given question as the point is given and the radius of circle is given:

So,

(h,k)=(2,-1)

and

r=3

Here,

h=2

k= -1

Putting the values of h,k and r in standard form

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(x-2)^2+ (y+1)^2=(3)^2

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(x-2)^2+ (y+1)^2=9(3)^2

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3 years ago

8×1+5×(1/10)+9×(1/1,000)

dybincka [34]

8×1+5×(1/10)+9×(1/1000)
8+5×(.1)+9×(.001)
8+.5+.009
Answer is 8.509

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3 years ago