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Solnce55 [7]
2 years ago
13

Please help, thank you!

Mathematics
1 answer:
maxonik [38]2 years ago
5 0

Answer:

P = \frac{4}{25}\\

Step-by-step explanation:

Big circle area:

A=\pi r^{2} =\pi (10)^{2} =100\pi

Smaller circle área:

A=\pi (4)^{2} =16\pi

Probability:

P=\frac{16\pi }{100\pi } =\frac{4}{25}

Hope this helps

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Which of the following is equivalent to 2^2/5?
pashok25 [27]
The answer is letter A since the mixed form of 7/5 is equal to 1 and 2/5.
3 0
3 years ago
If x^{2} + y*sqrt{xy} = 10 and y^{2} + x*sqrt{xy} = 20, what is x?
dlinn [17]

Answer:

45

Step-by-step explanation:

If x and y are positive integers, what is the value of x√+y√x+y?

(1) x + y = 10

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5 0
3 years ago
Someone please help me with this.
liubo4ka [24]
  • Radius=r=0.7m
  • Volume=231m^3
  • Height=h

\boxed{\sf Volume=\pi r^2h}

\\ \sf\longmapsto π(0.7)^2h=231

\\ \sf\longmapsto 0.49πh=231

\\ \sf\longmapsto πh=\dfrac{231}{0.49}

\\ \sf\longmapsto 3.14h=471.4

\\ \sf\longmapsto h=\dfrac{471.4}{3.14}

\\ \sf\longmapsto h=150m

5 0
3 years ago
Goofy wants to buy white rice. The store has 4 different sizes of white rice bags: $2.00 for 1 pound, $4.25 for 2 pounds, $9.50
Tanzania [10]

Answer:

20 dollars for 12 pounds.

Step-by-step explanation:

This is a critically important question to know the answer to. It is used almost every day by good shoppers.

The trick is to get everything down to 1 pound.

$2.00

$2.00 per pound. The question is the answer.

$4.25

$4.25 / 2 pounds = $2.13 rounded.

$9.50

$9.50 / 5 = $1.90

$20

$20/12 = $1.67 rounded

8 0
3 years ago
5x+6y=13 and -5x+2y=11
murzikaleks [220]

6y = 13 + 2y = 11
4y =  13 + 11
4y = 24

24 \div 4 =
6

7 0
4 years ago
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