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Nezavi [6.7K]
3 years ago
9

a box of 8 marbles has 4 red,2 green and 2 blue marbles. If you select one marble, what is the probability that it is a red or b

lue marble
Mathematics
1 answer:
Vinvika [58]3 years ago
8 0

your answer should be 0.80

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Simplify: a²b⁵c<br> ______<br> a⁴bc³​
Darya [45]

Answer:

\frac{b ^{4} }{a ^{2}c ^{2}  }

Step-by-step explanation:

when dividing subtract the exponents

4 0
3 years ago
Two card are pulled from a normal deck of 52 cards, without replacement.
8090 [49]

Answer:

The probability that both cards that are drawn are hearts is 1/17.

Step-by-Step-Explanation:

First off, know that there are 13 heart cards in the deck of 52 cards. Therefore, the chance of pulling a single heart card is 13/52. Let's say we do pull a heart card. Since there is no replacement for the heart card taken out of the deck, we now have 12 heart cards out of a deck of 51 cards. The chance of pulling out a heart card in now 12/51. To find the probability that both cards drawn out are hearts, multiply the two fractions together: (13/52)⋅(12/51)=156/2652=1/17.

<h2></h2><h2>So hence, your answer is 1/17</h2>

-----------------------------------——————---------------------------------------------------------

Thanks!

Answered by: FieryAnswererGT

#learnwithbrainly

Want to Thank me? JUST MARK ME BRAINLIEST! So simple!

8 0
2 years ago
Can someone help me please ???????
Inessa [10]

Answer:

d=1

Step-by-step explanation:

Factor d^2 - 2d - 8 into (d-4)(d+2)

Move -2/d+2 onto the other side, changing it into 2/d+2.

\frac{-3d}{(d-4)(d+2)} +\frac{3}{d-4}+\frac{2}{d+2} = 0

Let the empty side equal zero.

Add 3/d-4 and 2/d+2

\frac{5d-2}{(d+2)(d-4)}

Then add that to -3d.

\frac{2d-2}{(d+2)(d+4)}

Multiply 0 by d+2 and d-4 to get 2d-2 by itself.

2d=2

d=1

I can't edit the equation, but it's d-4 althroughout the question. Sorry for being so slow.

6 0
3 years ago
If F(x) and G(x) are two functions such that F(G(x)) = x then F(x) and G(x) are ..?
lana [24]
They are inverse functions though to be completely thorough your teacher should have also put g(f(x)) = x as well. Though I can see what your teacher is aiming for at least.

The idea is that whatever the output of g(x) is, it's plugged into f(x) and the initial input is the result. So g(x) takes a step forward and f(x) takes a step back undoing everything g(x) did. Which is exactly what an inverse operation does. 
4 0
3 years ago
Read 2 more answers
What is the square root of 1152?
Alex787 [66]
The square root is <span>33.941125497


</span>
4 0
3 years ago
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