Answer:
-51
Step-by-step explanation:
<u>Step 1: Solve inside the parenthesis</u>
12 + 3(18 - 42) + 9
<em>12 + 3(-24) + 9</em>
<em />
<u>Step 2: Multiply</u>
12 + 3(-24) + 9
<em>12 - 72 + 9</em>
<em />
<u>Step 3: Combine the first two numbers</u>
(12 - 72) + 9
<em>-60 + 9</em>
<em />
<u>Step 4: Combine the last two numbers</u>
-60 + 9
<em>-51</em>
<em />
Answer: -51
Answer:
The correct option is C: the isotope of iodine contains 81 neutrons.
Step-by-step explanation:
The mass (A) of the iodine isotope is given by:
Where:
Z: is the number of protons
N: is the number of neutrons
For iodine Z= 53, so if A = 134 the number of neutrons is:
Therefore, the correct option is C. The isotope of iodine contains 81 neutrons.
I hope it helps you!
Answer:
b) Is associated with motor impairment but does not cause it
Step-by-step explanation:
The study didn't explain the timeline of their findings, so we can conclude this research takes data at one time. Research that doesn't take before and after exposure data cannot be used to derive causation since we can't prove that the condition happens after the exposure. But this study still can predict association by risk ratio or odds ratio depends on the study design.
Answer:
A linear graph is nothing but a straight line or straight graph which is drawn on a plane connecting the points on x and y coordinates.
