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qaws [65]
3 years ago
5

In a bag there are 4 black marbles and 2 green marbles. What is the probability of choosing a black marble, not replacing it, th

en choosing a green marble?
Mathematics
1 answer:
uranmaximum [27]3 years ago
8 0

Answer:

It'd be 4/15

Step-by-step explanation:

The total marbles is 6, so for black it's 4/6, but it's not being put back in so for the next one, the denominator would be 5. For green it's 2/5

4/6 times 2/5 equal 4/15

Hope this helps!

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\bf \textit{using the 2nd fundamental theorem of calculus}\\\\
\cfrac{dy}{dx}\displaystyle \left[ \int\limits_{0}^{x}\ cos^{-1}(t)dt \right]\implies cos^{-1}(x)
\\\\\\
f'(0.3)\iff cos^{-1}(0.3)\approx 1.26610367277949911126

now.. 0.3 is just a value...we'e assuming Radians for the inverse cosine, so, if you check, make sure your calculator is in Radian mode
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3 years ago
Factor p^4-81 completely showing all work.
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Answer:

Step-by-step explanation:

p^4-81=(p^2)^2-9^2=(p^2+9)(p^2-9)=(p^2-9(-1))(p+3)(p-3)\\=(p^2-9i^2)(p+3)(p-3)\\=(p+3i)(p-3i)(p+3)(p-3)

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3 years ago
What value of x results in f(x) = 1 given the<br> function f(x) = 9 - 4x?
BlackZzzverrR [31]

Answer:

2 =x

Step-by-step explanation:

f(x) = 9 - 4x

Let f(x) = 1

1 = 9 -4x

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Divide by -4

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3 0
3 years ago
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Answer:

Martin Drove about 60,000

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Step-by-step explanation:

90,000 - (20,000 +10,000) = x

60,000 = x

86,456 - (24,901 - 7,997) = x

53,558 = x

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3 years ago
Hank has 120 basketballs. He stores 25% of them in a cage at home, and the rest of them are at the gym. How
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Answer:

30 are at his house.

25% of 120 is 30.

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3 years ago
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