Answer:
The answer is b and d
Step-by-step explanation:
The other answers are wrong.
Therefore b and d are correct.
Hope you get it right and this helps!
Answer:
You would realize that this is a right triangle with angles of 45-45-90. This means that the sides are 1-3 root 2-2. Hope this helps!!
Step-by-step explanation:
Answer: The value of n is 321.
Step-by-step explanation:
Since we have given that
Sample size = 321
Percentage of them developed headaches = 7%
So, the value of p would be

Now, the value of q would be

And the mean for the number of subjects who develop headaches would be

and the standard deviation would be

Hence, the value of n is 321.
Answer:
x = -7
Step-by-step explanation:
41 + 76 + x + 70 = 180
x + 187 = 180
x = 180 - 187
x = -7