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MrMuchimi
3 years ago
8

a bag has 1 red marble, 4 blue marbles, and 3 green marbles. peter draws a marble randomly from the bag, replaces it, and then d

raws another marble randomly. what is the probability of drawing 2 blue marbles in a row? explain your answer
Mathematics
1 answer:
alexdok [17]3 years ago
8 0
I did this my sophmore year in highschool and I'm trying to remember lol. But first you add all the marbles together. 1+4+3. its eight. and since the marble was put back in this makes it an independant event. i believe the answer would be 2/8 considering that there isnt enough numbers to follow through with the equation of (P(a or b)=P(a)xP(b) . P is the probability and a and b are the variabls that represent the events. You would plug in the numbers of the probabilities into the equation, if you think the question calls for it. sorry it may not have been a staright up answer. 
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Answer:

(-2,-12), (-1,-6), (0,-3) and (1,-3/2)

Step-by-step explanation:

g(x) = -3(1/2)^x

Putting values of x

x     g(x)

-2    -3(1/2)^-2 = -12

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1      -3(1/2)^1 = -3/2

Now, making the graph we will plot

(-2,-12), (-1,-6), (0,-3) and (1,-3/2)

The graph is shown in figure below.

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3 years ago
Really need help with this question ASAP!!!
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H=-5(t^2 - 16t)

H=-5(t^2 - 16t +64)+320

H=-5(t-8)^2 +320

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3 years ago
Solve the following system of equations. What is one x-value of a solution? f(x)=x^(2)+7x-24 g(x)=-3x-40
Yuki888 [10]

One x- value of the solution is : -2 or -8

<h3>What is an equation?</h3>

An Equation is an algebraic statement that shows that two quantities are equal.

Analysis:

for one x-value of a solution, f(x) = g(x)

x^{2} + 7x -24 = -3x - 40

x^{2} +7x +3x -24 +40 = 0

x^{2} + 10x +16 = 0

x^{2} +8x +2x +16 = 0

x(x+8) +2(x+8) = 0

(x+2)(x+8) = 0

x = -2 or -8

In conclusion, the values of x are -2 or -8

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5 0
1 year ago
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Answer:

15x^2 - 9x - 42

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3 years ago
there are 5 green marbles, 4 red marbles, and 3 yellow marbles in a bag. John selects a marble at random, keeps it, and then sel
Daniel [21]

Answer:

1/22

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