What is the mean of the data set? 6, 7, 2, 1, 5, 2, 1, 6,

3.75

Step-by-step explanation:

First, you add all the numbers together,

1+1+2+2+5+6+6+7

1+1=2+2=4+2=6+5=11+6=17+6=23+7=30

Now divide 30 by how many numbers there are in the list. There are 8 numbers.

30/8=3.75

Hope this helped!

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116