7 Days She Have earned over 500
6 days won't be enough since by then she still haven't reached 500
<h3>Given :-</h3>
- Perimeter of triangle = 42
- Side 1 of triangle = (x + 4)
- Side 2 of triangle = (3x + 8)
- Side 3 of triangle = (5x + 6)
<h3>To find:-</h3>
<h3>Explanation:</h3>
So to find length of sides we have to find the value of x.We can find value of x , by this formula:



So:-






















- Side 1 of triangle = (x + 4)
- Side 1 of triangle =2.67 + 4
- Side 1 of triangle = 6.67
- Side 2 of triangle = 3x + 8
- Side 2 of triangle = 3 × 6.67 + 8
- Side 2 of triangle = 20.01 + 8
- Side 2 of triangle = 28.01
- Side 3 of triangle = 5x + 6
- Side 3 of triangle = 5 × 2.67 + 6
- Side 3 of triangle = 13.35 + 6
- Side 3 of triangle = 19.35
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~WindyMint
Given:





To find:
The variance. of combined set.
Solution:
Formula for variance is
...(i)
Using (i), we get




Similarly,




Now, after combining both sets, we get




Therefore, the variance of combined set is 15.4.
Answer: 2:1 B is the answer I think this is correct.
Step-by-step explanation:
I would say A. is the correct answer. Definitely a weird one. Hope this helps!