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2 years ago

If v=-1, x=-2 and y= 3, find the value of: 3v + 2x

Mathematics

1 answer:

Dominik [7]2 years ago

6 0

Answer:

-7

Step-by-step explanation:

3 v + 2 x

Where, v = -1 and x = -2

3 ( - 1) + 2 ( -2)

-3 - 4

-7

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3 years ago

Please answer correctly !!!!! Will mark brainliest !!!!!!!!!

Brut [27]

Answer:

The width is 2x+1

Step-by-step explanation:

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3 years ago

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Suppose you have a bag containing 2 black marbles and 3 red marbles. You reach into the bag, select a marble, see what color it

TiliK225 [7]

Answer:

$\dfrac{9}{25}$

Step-by-step explanation:

Given that the bag contains black and red marbles.

Number of black marbles in the bag = 2

Number of red marbles in the bag = 3

Total number of marbles in the bag = Number of black marbles + Number of red marbles = 2 + 3 = 5

Let us have a look at the formula for probability of an event E, which can be observed as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

$P(\text{First red marble}) = \dfrac{\text{Number of red marbles}}{\text{Total number of marbles}} = \dfrac{3}{5 }$

Now, the marble chosen at first is replaced.

Therefore, the count remains the same.

$P(\text{Second red marble}) = \dfrac{\text{Number of red marbles}}{\text{Total number of marbles}} = \dfrac{3}{5}$

Now, the <em>required probability</em> can be found as:

$P(\text{First red marble})\times P(\text{Second red marble}) = \dfrac{3}{5}\times \dfrac{3}{5} = \bold{\dfrac{9}{25} }$

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3 years ago

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3 years ago

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Minchanka [31]

Please find attached photograph for your answer. Please do mark me Brainliest

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3 years ago

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