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grigory [225]
2 years ago
7

There is a bag filled with 4 blue, 3 red and 5 green marbles.

Mathematics
1 answer:
bearhunter [10]2 years ago
7 0

Answer:

1/11

Step-by-step explanation

There are 12 marbles in the bag. When we first pick we have 4 blue marbles. So 4 blue marbles/12 random marbles. When we pick blue and noted, there are 3 marbles in the bag because of we didn't put it back. So when we choose again there are 11 marbles and 3 blue marbles in the bag. Choosing a blue one case is 3/11.

The last part of this case is happening as a chain. So we need to multiply our two answers.

=4/12*3/11

=1/3*3/11

=1/11

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10 - 9 x 5 + 6 x (-2)
olya-2409 [2.1K]

Answer:

The answer to your equation is -47.

Step-by-step explanation:

Follow the order of operations. First do 9*5=45, and 6*-2 to get -12. Next, just finish the equation from left to right to get -47.

5 0
3 years ago
Read 2 more answers
A circle is centered at the point (5, -4) and passes through the point (-3, 2).
zepelin [54]

Answer:

(x-5)^2+(y+4)^2=100

Step-by-step explanation:

As we know the given points

Center = (5, -4)

and

Point on circle = (-3,2)

The distance between point on circle and center will give us the radius of circle

So,

The formula for distance is:

\sqrt{(x_{2}-x_{1} )^{2}+(y_{2}-y_{1})^{2}}\\Taking\ center\ as\ point\ 1\ and\ the\ other\ point\ as\ point\ 2\\d=\sqrt{(-3-5)^{2}+(2-(-4))^{2}}\\d=\sqrt{(-8)^{2}+(2+4)^{2}}\\d=\sqrt{(-8)^{2}+(6)^{2}}\\\\d=\sqrt{64+36}\\d=\sqrt{100} \\ d=10\\So\ the\ radius\ is\ 10

The standard form of equation of circle is:

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

where h and k are the coordinates of the center. So putting in the value:

(x-5)^{2}+(y-(-4))^{2}=(10)^{2}\\(x-5)^{2}+(y+4)^{2}=100

8 0
3 years ago
The product of two numbers is 30 if one of the numbers is six over 11 what is the other number
Naya [18.7K]
Xy=30
x=6/11
6/11y=30
Divide by 6/11 on both sides
y=55
5 0
2 years ago
Math linear functions
Ivenika [448]

Answer:

60x-80

Step-by-step explanation:

per hour is x and the fee is negative 80

5 0
3 years ago
8 times the square of a nonzero number is equal to 96 times the number. What is the number?
Bingel [31]
8x^2 = 96x
8x^2 - 96x = 0
8x(x - 12) = 0

8x = 0....x = 0

x - 12 = 0
x = 12

ur number is 12

5 0
3 years ago
Read 2 more answers
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