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baherus [9]
3 years ago
6

Please Help with these 3 questions Please

Mathematics
1 answer:
Pepsi [2]3 years ago
3 0
For 14 the answer is -9
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Urn I contains three red chips and one white chip. Urn II contains two red chips and two white chips. One chip is drawn from eac
Lelechka [254]

Answer:

0.7

Step-by-step explanation:

The Probability of Chips in Urn 1

P(R) = 3/4

P(W) = 1/4

The Probability of Chips in Urn 2

P(R) = 1/2

P(W) = 1/2

The problem can be solved using probability tree method. The probability tree of the given question is attached with the answer.

The Probability tree shows the exchange of chips firstly and then the final probability of Red Chips and White Chips in Urn 1.

To find the final answer we can sum up the probabilities of the branches which are ticked in the diagram.

Probability of Branch 1 (ticked in diagram)

3/4 x 3/5 x 3/4 = 0.3375

Probability of Branch 2 (ticked in diagram)

3/4 x 2/5 x 2/4 = 0.15

Probability of Branch 3 (ticked in diagram)

1/4 x 2/5 x 1 = 0.1

Probability of Branch 4 (ticked in diagram)

1/4 x 3/5 x 3/4 = 0.1125

Final Probability = 0.3375 + 0.15 + 0.1 + 0.1125

= 0.7 Answer

7 0
3 years ago
Please help me! :) I will give 15 thank yous! Please help<br> 
Korvikt [17]
80 because if you multiply all them you would get 64,000 then divide it
3 0
3 years ago
What is the maximum number of possible solutions for the system shown below?
julsineya [31]

\bf \begin{cases} 3x^2+y^2=4\\[-0.5em] \hrulefill\\ x^2+y=5\implies \boxed{y}=5-x^2 \end{cases} \\\\\\ \stackrel{\textit{substituting \boxed{y} in the 1st equation}}{3x^2+\left( \boxed{5-x^2} \right)^2=4}\implies 3x^2+25-10x^2+x^4=4 \\\\\\ x^4-8x^2+21=0\impliedby \begin{array}{llll} \textit{the degree of this polynomial}\\ \textit{is 4, and by the fundamental}\\ \textit{theorem of algebra, it can}\\ \textit{have \boxed{4} solutions at most} \end{array}

7 0
3 years ago
What is the equation of the line that passes through the point (-4,3) and has a slope of –5/4​
Inga [223]

Answer:

Step-by-step explanequation of line passing through (x₁,y₁):-

y-y₁=m(x-x₁)

The equation of line which passes through (4,3) and slope is 5/4

y-3=5/4(x-4)

4y-12=5x-20

5x-4y-8=0ation:

3 0
1 year ago
Robert is going to invest $640 and leave it in an account for 20 years. Assuming the interest is compounded quarterly, what inte
ollegr [7]

Answer:

Interest rate ≈ 3.48%

Step-by-step explanation:

5 0
2 years ago
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