Answer:
42
Step-by-step explanation:
10x+15x+6x=217
31x=217
217/31=7
6x7=42
Answer:
Answer: -10a+9b (I think)
Answer:
There will be 22.5 grams left after 32 hours.
Step-by-step explanation:
A half-life is how long it takes for half of the amount to go away. In this case, we see that we have two half-life periods worth, which you can determine by dividing the total time by the half-life time.
32hrs/8hrs = 4 half lives.
Now we can raise 1/2 to the power of how many half lives we have (2). Then we multiply that by the amount in the sample.
(1/2)^4 * 360
1/16 * 360
22.5 grams
And this is an exponential function.
Answer:
Option B. is correct
Step-by-step explanation:
Given:
Data: 12 24 56 7 34 75 34 86 34 78 and 96
To find: the most appropriate first interval
Solution:
A histogram is a pictorial representation to display frequency data using rectangular bars.
In histogram, each bar is for a range of data.
For the given data, options A. is not appropriate as the least value given in the data is 7.
Option C. is not appropriate as then the data falls under just two intervals only.
Option D. is not appropriate as then the data falls under just one interval only.
Option B. is the most appropriate first interval
