Answer:

Step-by-step explanation:
Given that a medical study investigated the effect of calcium and vitamin supplements on the risk of older Americans for broken bones. A total of 389 older Americans who lived at home and were in good health were studied over a three-year period. While all of the 389 people took in at least 700 milligrams of calcium and 200 units of vitamin D through their normal diet, 187 of them were given additional supplements containing 500 milligrams of calcium citrate and 70 units of vitamin D daily. Of the 187 who took additional supplements, 11 of them suffered broken bones over the three-year period. Of the 202 older Americans who did not take the additional supplement, 26 of them suffered broken bones over the study period.
Group I Group II Total
n 187 202 389
favour x 11 26 37
The fraction of older Americans who were included in the study suffered broken bones during the three-year period
=Total x/total n
= 
Only the upper-left statement is NOT true.
For this answer, you multiply the weight of each penny nail by x and the weight of each wood nail by y. If the bag holds one pound of nails, you would use the inequality ≤.
.05x + 0.1y ≤ 1
The correct answer is
y=2x-9
Since the lines are parallel, they will gave the same slope (in this case it’s 2)
Our equation will be
y=mx+b
We know the slope is 2, and they’ve given us x and y coordinates. Plugging it in to the slope equation we get
1=2(5)+b
1=10+b
Subtract 10 from both sides and you get
-9=b
Putting it together our new parallel line will be
y = 2x - 9
Answer: 9 under root 6
Step-by-step explanation: