Subtract sides -7
Thus ;
So the correct answer is (( A )) .
Answer:
A nonresponse might lead to a bias in the study due to the fact that the counselor may assume that those who did not reply to the email may have tried alcohol and they didn't want him(the counselor) to know.
Step-by-step explanation:
In statistical research, a bias is said to occur when systematic errors are introduced into sampling or testing by selecting or favoring one outcome over other outcomes.
Now, applying that definition to this question, we can say that a nonresponse might lead to a bias in the study due to the fact that the counselor may assume that those who did not reply to the email may have tried alcohol and they didn't want him(the counselor) to know.
I putted those equations into order , first I putted on the top the second equation on the bottom, this will help u to find out the difference between them. I did subtraction first , so 4y-(-4y) = 8y , then 6 -19=-13. After u do ur divine u will get Y= -13/8
The area of a triangle is hb/2, we are told the base but not the side lengths. The side length can be found using the pythagorean theorem.
s^2=(b/2)^2+h^2
The height can be found from the area because:
A=bh/2 so
h=2A/b then our pythagorean identity becomes:
s^2=(b/2)^2+(2A/b)^2
s^2=b^2/4+4A^2/b^2 or a little more neatly
s^2=(b^4+15A^2)/(4b^2), we were told A=150 and b=12 so
s^2=358236/576
s=√(358236/576) ft
s≈24.939 to nearest thousandth (which means that they actually rounded wrong because that's...
s≈24.9 to nearest tenth (they must have made earlier rounding somewhere in the earlier calculations, that's why you use symbols until the final calculation :P)
Anyway, they rounded to 25.0