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Irina-Kira [14]
3 years ago
13

A bag with 12 marbles has 5 blue marbles, 3 yellow marbles, and 4 red marbles. A marble is chosen from the bag at random. What i

s the probability
is not blue?
Mathematics
1 answer:
ddd [48]3 years ago
6 0

Answer:

5/12 i think

Step-by-step explanation:

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HELP PLS WILL GIVE A LOT OF POINT
sveta [45]

Answer:

large = 18 3/4 = 18.75

small = 13/2 = 6 1/2 = 6.5

Step-by-step explanation:

Let l = the weight of large boxes

s = weight of small boxes

2 large and 3 small weights 57

2l+3s = 57

6 large and 5 small wights 145

6l+5s = 145

Multiply the first equation by 3

3(2l+3s) = 57*3

6l +9s =171

Subtract the second equation

6l +9s =171

-6l -5s = -145

-----------------------

     4s =26

Divide each side by 4

4s/4 = 26/4

s = 26/4 = 13/2

Substitute this into the first equation

2l +3s = 57

2l + 3(13/2) =57

Multiply by 2 to get rid of the fractions

2(2l + 3(13/2)) =57*2

4l + 39 = 114

Subtract 39 from each side

4l +39-39 = 114-39

4l =75

Divide by 4

4l/4 = 75/4

l = 75/4 = 18 3/4

7 0
3 years ago
Read 2 more answers
Explain how you could write a quadratic function in factored form that would have a vertex with an x-coordinate of 3 and two dis
skad [1K]
<span>The definition of quadratic function is given by:

</span>(1) \ f(x)=ax^{2}+bx+c \\ \\ where \ a, b, c \ are \ real \ values<span>

So the problem asks for two conditions:

<em>1. Write the quadratic function in factored form. </em>
<em>2. The vertex has an x-coordinate of 3.</em>

Then the equation (1) must be written as follows:

</span>f(x)=(x-m)(x-n) \\ \\ where \ m \ and \ n \ are \ the \ roots<span>

To satisfy the two conditions:

\frac{m+n}{2}=3

So we are free to choose the value of one root, say:

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Thus:

n=6-1=5

Finally, the answer is:

f(x)=(x-1)(x-5)

The graph of this function is shown in the figure below.</span>

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3 years ago
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Likurg_2 [28]

Answer:

x = -6

Step-by-step explanation:

7 0
3 years ago
Which equation does NOT belong with the other three? Explain your reasoning. HELP PLEASE!!
mezya [45]

x - 6 = 0

This equation does not belong because it is already fully simplified.

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I think it would be B
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