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yarga [219]
2 years ago
13

A bag contains 9 marbles: 2 are green, 2 are red, and 5 are blue. Deon chooses a marble at random, and without putting it back,

chooses another one at
random. What is the probability that the first marble is green and the second is red? Write your answer as a fraction in simplest form.
Mathematics
1 answer:
Licemer1 [7]2 years ago
6 0

Answer: probability for 1st marble being green is 2/9 and 2nd marble being red is 1/4

Step-by-step explanation:

I hope this is correct. since there are 9 marbles and 2 of them are green, you do 2/9 which is 2/9 in its simplest form. And since you didn't put back the first marble there are 8 marbles left and 2 of them are red. You do 2/8 which in its simplest form is 1/4. I hope this helps

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Create an expression equivalent to 2 (3x =1) 3x+4 using the least number of terms
Mariana [72]

Answer:

18x^2 + 18x -8

Step-by-step explanation:

To use the least number of terms, simplify the expression. To simplify, distribute into the parenthesis and combine like terms.

2(3x-1)(3x+4) = 2(9x^2-3x+12x-4) = 2(9x^2+9x-4) = 18x^2 + 18x -8

6 0
3 years ago
The graph of the parent function y = x cubed is horizontally stretched by a factor of One-fifth and reflected over the y-axis. W
sasho [114]

Answer: OPTION D.

Step-by-step explanation:

Below are some transformations for a function f(x):

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If f(-x), then the function is reflected over the y-axis.

If f(bx)  and b>1, then the function is horizontally compressed.

If  f(bx)  and 0 < b, then the function is horizontally stretched.

In this case you know that the parent function is:

y=x^3

According to the information given in the exercise, the parent function IS horizontally stretched by a factor of \frac{1}{5} and it is also reflected over the y-axis.

Therefore, based on the transformations explained before, you can notice that the transformation is:

f(-bx)

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Therefore, the equation of the transformed function is:

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8 0
3 years ago
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Solve the system of equations by substitution <br><br> y = 2x + 1 and 3x + y = 16
Luden [163]

Answer:  y=7,x=3

Steps:

y = 2x + 1

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Simplify

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Isolate x for 5x + 1 = 16: x = 3

For y = 2x + 1

Substitute x = 3

y = 2 · 3 + 1

Simplify

y = 7

The solutions to the system of equations are:

y = 7, x = 3

Hope This Helps!

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3 years ago
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zhuklara [117]

Answer:

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Step-by-step explanation:

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