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3 years ago

You pick a card at random, put it back and then pick another card up.

Mathematics

1 answer:

jeyben [28]3 years ago

7 0

Answer:

1/6 chance.

Step-by-step explanation:

First, there is a 1/3 chance of picking a 3 out of 3 cards. After you pick the three, there is only a 2 and a 4 in the bag left, so its a 1/2 chance of picking a 4, the only one greater than three. Multiply 1/3 by 1/2 and you get 1/6.

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Create the f(x) function based on the table. Your answer should be in function notation. X f(x) - 10 -6 -9 -5 1-8 -4 -7 1-3 5 9

Minchanka [31]

Answer:

$f(x) = x + 4$

Step-by-step explanation:

First create an equation in slope-intercept form, y = mx + b. To do this, find the rate of change or slope (m), and the y-intercept (b).

Using two pairs, (-7, -3) and (-8, -4),

$slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{-4 -(-3)}{-8 -(-7)} = \frac{-1}{-1} = 1$

m = 1

To find b, substitute m = 1, x = -7 and y = -3 into y = mx + b.

Thus:

-3 = (1)(-7) + b

-3 = -7 + b

-3 + 7 = b

4 = b

b = 4.

Replace y with f(x), m with 1 and b with 4 in y = mx + b.

The function would be:

$f(x) = x + 4$

6 0

3 years ago

Which of these can NOT be written as an equation?

Aleksandr [31]

Answer:

Two times t minus 6

Step-by-step explanation:

Mathematically,it is written as 2t-6

And in order for a set of characters to be written as an equation,there has to be an answer or definite result and has the "=" sign

4 0

3 years ago

With import tax, a dealer spent 5250 for importing some cosmetics if the total of the cosmetics was 5000 what was the percentage

forsale [732]

Answer: 5%

Step-by-step explanation:

Given

With import, Dealer spent $Rs.\ 5250$

If the cosmetic cost is $Rs\ 5000$

Import tax is $\Rightarrow 5250-5000=Rs\ 250$

Percentage of import tax

$\Rightarrow \dfrac{250}{5000}\times 100=5\%$

3 0

3 years ago

Each wall in Keith's room is 12 meters long and seven and 7 7/8 meters wide. He plans to paint one wall blue. Each can of paint

expeople1 [14]

Answer:

i am not so sure but my guess would be 8 cans of paint

Step-by-step explanation:

i tried my hardest and this is what i got 2 times with doing the math hopwthis helps wish the best of luck.

6 0

3 years ago

Read 2 more answers

What is the formula of (a+b)² and (a-b)²<br>?

oksian1 [2.3K]

Answer:

The formula of (a+b)² and (a-b)² are as follows:

Step-by-step explanation:

(a+b)²=a²+2ab+b²

(a-b)²=a²-2ab+b²

5 0

3 years ago

Read 2 more answers