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3 years ago

We can use the formular-

Mathematics

1 answer:

german3 years ago

7 0

Answer:

r = 4.24 inches

Step-by-step explanation:

Given that,

The surface area of the ball, A = 226.8 sq inches

The formula for the surface area of a sphere is given by :

$A=4\pi r^2$

Where

r is the radius of the ball

$r=\sqrt{\dfrac{A}{4\pi}} \\\\r=\sqrt{\dfrac{226.8}{4\pi}} \\\\r=4.24\ inch$

So, the radius of the ball is 4.24 inches.

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A game has a circular playing area in which you must hit a ball into a circular hole. The area of the playing area is 16ft2. The

Bad White [126]

Answer:

$4.9\%$

Step-by-step explanation:

we know that

To find out the probability of hitting a ball into the circular hole, divide the area of the hole by the area of the playing area

Let

x ----> the area of the hole

y ----> the area of the playing game

$P=\frac{x}{y}$

we have

$y=16\ ft^2$

Find the area of the hole

The area of the circle (hole) is equal to

$A=\pi r^{2}$

we have

$r=1/2=0.5\ ft$ ----> the radius is half the diameter

assume

$\pi =3.14$

substitute

$A=(3.14)(0.5)^{2}$

$A=0.785\ ft^2$

Find the probability

$P=\frac{x}{y}$

we have

$x=0.785\ ft^2$

$y=16\ ft^2$

substitute

$P=\frac{0.785}{16}$

$P=0.0491$

Convert to percentage

$0.0491*100=4.91\%$

Round to the nearest tenth

$4.9\%$

5 0

3 years ago

How to do this Help me

victus00 [196]

.....................................................

7 0

3 years ago

9.24 is what percent of 38.5?

serg [7]

9.24 is 24% of 38.5
100%=38.5
x%=9.24

100%/x%=38.5/9.24
(100/x)*x=(38.5/9.24)*x
100=4.16666666667*x
y (4.16666666667) to get x
100/4.16666666667=x
24=x
x=24

8 0

3 years ago

2(k+m) = 5, solve for m

Dovator [93]

$2(k+m)=5\ \ \ \ | divide\ by\ 2\\\\
k+m=2,5\ \ \ \ | subtract\ k\\\\
m=2,5-k\\\\Solution\ is\ m=2,5-k.$

3 0

3 years ago

Laura has 9 apples jon has 6 apples how many apples do they have together

mote1985 [20]

Togeher they have 9 + 6 = 15 apples.

4 0

3 years ago