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Deffense [45]
3 years ago
3

The probability of drawing two red balls from a jar at random without replacement is 310 . The probability of drawing a red ball

first is 916 . What is the probability of drawing a second red ball, given that the first ball drawn was red?
Mathematics
2 answers:
Ugo [173]3 years ago
5 0

Answer:

8/15

Step-by-step explanation:

I just took the quiz

lawyer [7]3 years ago
4 0
Drawing a first red ball: A
Drawing a second red ball: B

Probability of drawing two red balls: P(A ∩ B)=0.310
Probability of drawing a red ball first: P(A)=0.916
Probability of drawing a second red ball given that the first ball drawn was red: P(B\A)=?

P(B\A)=P(A ∩ B) P(A)→
P(B\A)=(0.310)(0.916)→
P(B\A)=0.28396→
P(B\A)=0.284

Answer: T<span>he probability of drawing a second red ball, given that the first ball drawn was red is 0.284</span>
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The area of of a triangle is 56 m² give all possible sets of whole number dimensions for the base and height ot the triangle
ch4aika [34]

\bf \textit{area of a triangle}\\\\ A=\cfrac{1}{2}bh~~ \begin{cases} b=base\\ h=height\\ \cline{1-1} A=56 \end{cases}\implies 56=\cfrac{1}{2}bh\implies 112=bh \\\\\\ \boxed{112=2\cdot 2\cdot 2\cdot 2\cdot 7}\to \begin{cases} 16\cdot 7\\ 8\cdot 14\\ 4\cdot 28\\ 2\cdot 56 \end{cases}\qquad or\qquad \begin{cases} 7 \cdot 16\\ 14 \cdot 8\\ 28 \cdot 4\\ 56 \cdot 2 \end{cases}

so their product is 112, so tis just a matter of doing some quick prime factoring and combining the factors about.

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3 years ago
Round 5.53 to one decimal place?
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Rounded to ones: 6.0

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5 0
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Read 2 more answers
2x(x+4)+7+=(x+8)+ 2x(x+1)+12=
Katena32 [7]

Answer:

x=2.600

Step-by-step explanation:

2x(x+4)+7+=(x+8)+ 2x(x+1)+12

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

  ->        2*x*(x+4)+7+-((x+8)+2*x*(x+1)+12)=0

-> ((2x•(x+4))+7)-(((x+8)+2x•(x+1))+12)  = 0

->  (2x • (x + 4) +  7) -  (2x2 + 3x + 20)  = 0

->  5x - 13  = 0

-> Add  13  to both sides of the equation :  

                     5x = 13

Divide both sides of the equation by 5:

                    x = 13/5 = 2.600

Please mark as brainliest

8 0
3 years ago
Help me plspslsplpsl 42x^2+34-8-12
OverLord2011 [107]

\bf Step-by-step~explanation:

\bf Step~1:

To solve this, we have to simplify these numbers by adding like terms.

42x^2+34-8-12\\\\(34-8=26, 26-12=14)\\\\42x^2+14\\

\bf Step~2:

Next, we factor our expression. To do so, we look for the greatest common factor of 42 and 14, which is 14. We know that because 42 divided by 14 is 3.

\frac{42}{14} =3

\boxed{ \bf Our~final~answer: 14(3x^2 + 1)}

8 0
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$74.00 sweatshirt; 5% tax<br> |
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Answer:

the tax amount is $3.7

Step-by-step explanation:

Given that

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= Price of the sweatshirt × tax rate

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= $3.7

Hence, the tax amount is $3.7

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