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arsen [322]
3 years ago
5

A bag contains ten marbles of equal size and weight. One marble is blue, one marble is white, three are yellow, and five marbles

are red. A marble is taken from the bag two times. Each time a marble is taken out, it is not replaced. What is the probability of picking a blue marble and picking a white marble? A) 1/100 B) 1/5 C) 1/90 D) 2/15
Mathematics
1 answer:
Andrej [43]3 years ago
4 0
Itz B because 10-2=8
It would be like this 2/10 (btw it's not division...is a fraction) simplified to 1/5
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Evaluate <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%5E%7B-2%7Dx%5E%7B-3%7Dy%5E%7B5%7D%20%7D" id="TexFormula1" title="\
Irina18 [472]

Answer:

\bf C)\: -\cfrac{1}{32}

Step-by-step explanation:

\tt \cfrac{1}{2^{-2}x^{-3}y^5}

\tt x=2\\y=-4

~

Substitute ''x'' with '2' & 'y' with "-4":-

\tt \cfrac{1}{2^{-2}\times \:2^{-3}\left(-4\right)^5}

First let's solve \tt 2^{-2}\times \:\:2^{-3}\left(-4\right)^5

\tt 2^{-2}\times \:2^{-3}=\boxed{\cfrac{1}{32} }

\tt \cfrac{1}{32}\left(-4\right)^5

Calculate exponents:- -4^5= -1024

\tt \cfrac{1}{32}\left(-1024\right)

Remove parentheses, apply rule:- \tt a\left(-b\right)=-ab

\tt-\frac{1}{32}\times \:1024

\tt \cfrac{1}{32}\times \cfrac{1024}{1}

Apply fraction rule:-

\tt -\cfrac{1\times \:1024}{32\times \:1}

\tt \cfrac{1024}{32}

Divide numbers:-

\tt -32

Now that we're done factoring the denominator let's bring down the numerator which is ' 1 ':-

\tt -\cfrac{1}{32}\;\; \bf Answer

<u>☆-------☆-------☆-------☆</u>

3 0
2 years ago
Read 2 more answers
Two sides of a right triangle have lengths of 26 units and 10 units. There are two possible lengths for the third side. What is
Naya [18.7K]
C^2 = a^2 + b^2
26^2 = 10^2 + b^2
676 = 100 + b^2
576 = b^2
shortest side length = 24 units
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2 years ago
How to rewrite 4 x parentheses 25 + 4 parentheses
MissTica
4×29 because 25+4 is 29, we did the thing inside the parentheses so the parentheses is now gone, becoming 4×29
5 0
3 years ago
Help pls also show work if needed!!
kifflom [539]

Answer:

2a. No False

2b. Yes True

2c. Yes True

2d. No False

Step-by-step explanation:

4 0
3 years ago
Median of 5,4,6,3,4?
taurus [48]

Answer:

4

Step-by-step explanation:

3, 4, 4, 5, 6

7 0
2 years ago
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