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Vesnalui [34]
3 years ago
7

I need help with this question can anyone help?

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
5 0

Answer:

the answer is 6 just check it

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There is a bag filled with 5 blue and 4 red marbles.
babunello [35]

Answer:  40/81

===========================================

Work Shown:

B = selecting 1 blue

R = selecting 1 red

P(B) = 5/9, since there are 5 blue out of 5+4 = 9 total

P(R) = 4/9, since there are 4 red out of 9 total

P(2 blue) = P(B)*P(B) = (5/9)*(5/9) = 25/81

P(2 red) = P(R)*P(R) = (4/9)*(4/9) = 16/81

The last two equations are valid because we are sampling with replacement. Each selection is independent.

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

P(2 same color) = P(2 blue OR 2 red)

P(2 same color) = P(2 blue) + P(2 red)

P(2 same color) = 25/81 + 16/81

P(2 same color) = (25+16)/81

P(2 same color) = 41/81

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

P(2 different color) = 1 - P(2 same color)

P(2 different color) = 1 - 41/81

P(2 different color) = 81/81 - 41/81

P(2 different color) = (81-41)/81

P(2 different color) = 40/81

4 0
3 years ago
PLEASE SOMEONE!!HELP!! I need the answer right now
GalinKa [24]

Answer:

m = -1, b = 5.

Step-by-step explanation:

We can find the slope, <em>m</em>, by plugging in our coordinates into the slope formula: \frac{y2-y1}{x2-x1} =\frac{2-7}{3-(-2)}=\frac{-5}{5}=-\frac{5}{5}=-\frac{1}{1}=-1. That gives us the slope. Now we can fill that in the slope intercept formula: y=-1x+b. We know one of the coordinates and the slope, which allows to find the y-intercept. We know that for every 1 unit down on the line, we move 1 unit right, and vice versa. Meaning we can just count down (or up in this case), so, (-2, 7), (-1, 6), (0, 5). Therefore, our y intercept is 5.

6 0
3 years ago
How many radians is 150 degrees equal to?
mestny [16]

Answer: 2.618 radians

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please help I’ll give you guys brainiest. !!!!!
Veseljchak [2.6K]

Answer:

g(3) = 8

g(-6) = -37

Step-by-step explanation:

g(x) = g(3) = 3^2-1 =8

g(x) = g(-6) = -6^2-1 = -37

Hope this helps!

7 0
3 years ago
Read 2 more answers
Please please please please quick quick quick
Mkey [24]

Answer:

im not completely sure but i think its a

Step-by-step explanation:

3 0
3 years ago
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