Answer:
first and last statement listed
Explanation:
because f(c) is showing time, the start of the reaction will be when the y axis = 0 (because 0 time will have passed)
we can see the value of x/c is 20 when y/f(c) is 0 (20, 0)
indicating that the concentration of the chemical is 20 milligrams/liter at the start of the reaction.
<u>{first statement correct}</u>
<em>[second statement incorrect]</em>
Because the x-value [c] is increasing with the y-value [f(c)], we know that the concentration of the chemical increases as the reaction progresses over time. (time increases, concentration increases)
<u>{last statement correct}</u>
<em>[third statement incorrect]</em>
note that "the concentration of the chemical does not fall below 20 milligrams/liter" does not say anything about when [meaning during the reaction, at the start of, or before are all being considered] the concentration is less than 20 milligrams/liter.
We can see, that <em>before</em> this reaction, the concentration of the chemical <em>does </em>fall below 20 milligrams/liter
<em>[fourth statement incorrect]</em>
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hope this helps!!
Answer:
a is 50
b is 100
and c is 130
Step-by-step explanation:
1) the reason why a is 50 because a circle has a constant angle which is 360 so we just need to subtract 360 by 310 to find out the missing angle to complete the entire circle.
2) a straight angle has a constant angle which is 180 degrees and now we have the given angle 80 so to complete the straight angle we just need to subtract 180 to 80.
3) now as we've found a, which is 50 degrees, we now also know that a straight angle is 180 degrees so just subtract 180 by 50 so we get 130.
I'm sorry I'm really bad at explanations but I tried and I hope it helps.
thank you
Answer:
0.33
Step-by-step explanation:
If you have the number 1 and divide it by 100, you get 1/100, 0.01, or 1% of 1. If you multiply 1/100 by 33, you get 33/100, 0.33, or 33% of 1.