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Minchanka [31]
2 years ago
10

HELP PLS DUE IN 6 MINUTES 6TH GRADE MATH

Mathematics
2 answers:
Dimas [21]2 years ago
4 0

Answer:

C: None of the above

Step-by-step explanation:

adoni [48]2 years ago
3 0

Answer:

C

Step-by-step explanation:

trust me its easy

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$10.50
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A bag contains 1 blue, 2 green, and 2 red marbles. You choose a marble with one hand and then a second marble with the other han
katrin2010 [14]

The probability that you will first choose a red marble followed by a green marble is 20%.

<h3><u>Probabilities</u> </h3>

Given that a bag contains 1 blue, 2 green, and 2 red marbles, and you choose a marble with one hand and then a second marble with the other hand, to determine what is the probability that you will first choose a red marble followed by to green marble the following calculation must be made:

  • 1 + 2 + 2 = 5
  • 2/5 x 2/4 = X
  • 0.4 x 0.5 = X
  • 0.2 =X
  • 0.2 x 100 = 20

Therefore, the probability that you will first choose a red marble followed by a green marble is 20%.

Learn more about probability in brainly.com/question/26677483

6 0
2 years ago
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Solve for x...........................
yaroslaw [1]

Answer:

Option A is correct, i.e. x = -3, x = 7.

Step-by-step explanation:

Given the equation is x² -4x -21 = 0.

We can compare it with general quadratic equation i.e. ax² +bx +c =0.

then a = 1, b = -4, c = -21.

We can use Quadratic formula as follows:-

x = ( -b ± √(b²-4ac) )/2a

x = ( +4 ± √(16-4*1*-21) )/2*1

x = ( +4 ± √(16+84) )/2

x = ( +4 ± √(100) )/2

x = ( +4 ± 10 )/2

x = (4+10)/2 or x = (4-10)/2

x = 14/2 or x = -6/2

x = 7 or x = -3

Hence, option A is correct, i.e. x = -3, x = 7.

5 0
3 years ago
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