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Nataliya [291]
3 years ago
8

maria gas a bag with 6 red marbles, 6 blue marbles , and 4 green marbles. without looking, maria picks one marble. she does not

replace it, and she picks another one. on the first pick, maria gets a green marble. what is the probability that she gets a red marble on her second pick?
Mathematics
2 answers:
Diano4ka-milaya [45]3 years ago
8 0

Answer:

2/5

Step-by-step explanation:

viktelen [127]3 years ago
3 0

Answer:

6:6:3

I might be wrong. Hope it helped.

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Harper is a salesperson who sells computers at an electronics store. She makes a base pay amount of $100 per day regardless of s
g100num [7]

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100x-p*1%

Step-by-step explanation:

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The ages of the student volunteers at an event are 13, 11, 12, 15, 16, 11, 12,
aliya0001 [1]

Answer:The mean is 13

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Add all up and divide by 10 because there are 10 numbers

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Which expression is equivalent to -16 - 7?
alexandr1967 [171]

Answer:

- 16 + ( - 7 )

Step-by-step explanation:

- 16 + ( - 7 ) is same as - 16 - 7.

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3 years ago
A shipment of sugar fills 4
Strike441 [17]

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3 years ago
Write as a single term: cos(2x) cos(x) + sin(2x) sin(x)
GREYUIT [131]

Answer: cos(x)

Step-by-step explanation:

We have  

sin ( x + y ) = sin(x)*cos(y) + cos(x)*sin(y)   (1)   and

cos ( x + y ) = cos(x)*cos(y) - sin(x)*sin(y)  (2)

From eq. (1)

if x = y

sin ( x + x ) = sin(x)*cos(x) + cos(x)*sin(x) ⇒ sin(2x) = 2sin(x)cos(x)

From eq. 2

If x = y

cos ( x + x ) = cos(x)*cos(x) - sin(x)*sin(x)  ⇒ cos²(x) - sin²(x)

cos (2x) = cos²(x) - sin²(x)

Hence:The expression:

cos(2x) cos(x) + sin(2x) sin(x)  (3)

Subtition of sin(2x) and cos(2x)  in eq. 3

[cos²(x)-sin²(x)]*cos(x) + [(2sen(x)cos(x)]*sin(x)

and operating

cos³(x) - sin²(x)cos(x) + 2sin²(x)cos(x) = cos³(x) + sin²(x)cos(x)

cos (x) [ cos²(x) + sin²(x) ]  = cos(x)

since cos²(x) + sin²(x) = 1

8 0
3 years ago
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