All categories

3 years ago

Evaluate the expression when x=6 3x +7

Mathematics

1 answer:

Brums [2.3K]3 years ago

8 0

3(6) + 7
^
18 + 7= 25

You might be interested in

2(x-4) + 3x-x² for x = 3.

finlep [7]

Answer:

-2

Step-by-step explanation:

$2(3-4) +3(3)-3^2\\= 2(-1) + 3(3) -3^2\\= -2 + 9 - 9\\= -2$

8 0

2 years ago

in a certain game, a fair die is rolled and a player gains 20 points if the die shows a 6. if the die does not show a 6, the pla

BaLLatris [955]

The expected gain or loss is an illustration of mean and expected values.

The expected total gain is 83 points

The given parameters are:

Addition of 20 points for rolling a 6
Removal of 3 points for not rolling a 6

The probability of rolling a 6 in a fair die is 1/6.

The probability of not rolling a 6 in a fair die is 5/6.

So, the expected gain in each game is:

$\mathbf{E(x) = 20 \times \frac 16 - 3 \times \frac 56}$

$\mathbf{E(x) = \frac{20}6 - \frac{15}6}$

Take LCM

$\mathbf{E(x) = \frac{5}6}$

$\mathbf{E(x) = 0.83}$

The number of games is 100.

So, the expected gain is:

$\mathbf{Gain = 100 \times 0.83}$

$\mathbf{Gain = 83}$

Hence, the expected total gain is 83 points

Read more about expected value at:

brainly.com/question/13499496

5 0

3 years ago

For the person who needed to see the picture

umka21 [38]

Answer:

in total only 2 triangles can fit in the box

Step-by-step explanation:

all u have to do is take the box length (10) and divide it by the triangle length (5) and you get 2

5 0

2 years ago

Read 2 more answers

Please solve worksheet.

mars1129 [50]

Answer:

install socratic it give you all answer

Step-by-step explanation:

3 0

3 years ago

I am not really sure how to solve these and I really need an explanation..

Murrr4er [49]

Answer:

add 5x +2x and then find value of other numbers

8 0

3 years ago