Suppose you and a friend are playing a game that involves flipping a fair coin 3 times. Let x = the number of times that the coin shows heads. The probability distribution of X is shown in the table.
Number of Heads
0
1
2
3
Probability
0.125 0.375
0.375 0.125
The expected number of heads is
The standard deviation of the number of heads is
Round to three decimal places.
Done

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

ummm seems that u didnt post the attachement !

sas (side angle side)

aa(angle angle)

sss(side side side)

sas you have to find two sides with an angle in between

aa you find two angles because it will always add up to 180

sss find all sides

step-by-step explanation: