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Stella [2.4K]
4 years ago
10

What is the approximate area of a circle with a radius of 4 feet

Mathematics
1 answer:
Dima020 [189]4 years ago
5 0

Answer:

Area = 50.24 feet^2

Step-by-step explanation:

radius = 4 feet

Area =?

Area =\pi r^2\\\\

Substitute values into the given equation

Area =3.14\times 4^2\\\\Area =3.14\times 16\\\\Area =50.24\:ft^2

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Consider the following game: Roll a fair 6-sided die. You win if the result is greater than 4; otherwise, you lose. To play, you
dalvyx [7]

Answer:

-$1.33 or lose $1.33

Step-by-step explanation:

In this game, there are two possible outcomes.

- There is a 2 in 6 chance (rolling a 5 or a 6) that you win $8.

- There is a 4 in 6 chance (rolling a 1, 2, 3 or a 4) that you win nothing.

Note that for any outcome, you start off paying $4 to play.

The expected value of this game is:

E(X) =\frac{2}{6} *\$8+\frac{4}{6}*\$0-\$4\\E(X) = -\$1.33

You are expected to lose $1.33 per play.

4 0
3 years ago
the black triange in the first quadrant is the original figure label each other triangle with its transformation PLS HELP ASAP 6
Olenka [21]

Answer:

Step-by-step explanation:

Transformation from figure 1 to figure 2,

Translation of figure 1 by 6 units to the left.

Transformation of figure 1 to figure 3,

Reflection of figure 1 across y-axis.

Transformation from figure 1 to figure 4,

Translation of figure 1 by 6 units to the left and 4 units down.

Transformation from figure 1 to figure 5,

Translation of figure 1 by 3 units left and 6 units down.

Transformation from figure 1 to figure 6,

Reflection of figure 1 across x-axis.

4 0
3 years ago
Estimate the solution of the equation x – 8.1 = 5.3 to the nearest whole number.
Art [367]

Answer:

13 is your answer

Step-by-step explanation:

x - 8.1 = 5.3

  +8.1    +8.1         Add 8.1 to both sides

x     =     13.4

Which if you want the whole number i'd be 13, Because if your rounding the 3, 4 won't bump the 3 up any because 4 isn't greater than 5.

Hope my answer has helped you!

7 0
3 years ago
Read 2 more answers
Y=3(x-1)(x+6) written in standard form?
AURORKA [14]

Answer:

y=3x2` +15x-18

Step-by-step explanation:

8 0
4 years ago
Jack and Jill collect coins. Jack has 56 coins, and Jill has 80 coins. Both recently joined a coin-collecting club. Jack's club
Free_Kalibri [48]

Answer:

So, after 6 months, they both have the same number of coins.  

Step-by-step explanation:

Jack has 56 coins

Jill has 80 coins

Jack collect 12 coins per month

Jill collect 8 coins per month

Let after m months, they both have the same coin.

56 + 12 m = 80 + 8 m

12 m - 8 m = 80  - 56

4 m = 24

m = 6

So, after 6 months, they both have the same number of coins.  

7 0
3 years ago
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