Answer: Esy the answer is; C.
Step-by-step explanation:
The higher the negative value the less or lower the number is.
CONFUSING Right? XD
Answer:
No Solution.
Step-by-step explanation:
-6(x-7)+6(x+5)=73
-6x+42+6x+30=73
72=73
no solution
Answer:
17) 
18) 
19) 
20) 
Step-by-step explanation:
We know,
1 MB = 1000 KB
513 MB = (1,000 * 513) KB
= 513,000 KB
Now,
1 KB = 1,000 bytes
513,000 KB = (1,000 * 513,000) bytes
= 513,000,000 bytes
∴ 513 MB is 513,000,000 bytes
1. Mean.

2. <span>Standard deviation.
First we have to square each value and calculate the mean of that squares:

so the variance:

and the standard deviation:

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