The answer is Letter D - 3.42
Size - Mean
10 - 3.51
20 - 3.42
30 - 3.39
40 - 3.34
To solve for the mean, add up all the given values then divide it by how many numbers there are. In this case, we will add the mean of the samples then divide the result by the number of the given samples.
= (3.51 + 3.42 + 3.39 + 3.34) / 4
= 13.66 / 4
= 3.415 or 3.42
Answer:
Right option is (D).
ΔABC and ΔDBE are similar triangles by side angle side similarity postulate.
Step-by-step explanation:
We have given,
Two triangles ΔABC and ΔDBE such as :

This relation will contribute to side side similarity.
Also,
∠B = ∠B , This will contribute as an angle similarity .
So combining above two relations,

and ∠B = ∠B
we can conclude that the triangle ΔABC and ΔDBE are similar triangles by side angle side similarity postulate.
Hence the right option is (C)
Answer:
w=15
Step-by-step explanation:
4w+13×5 = 25×5
4w =125-65
4w =60
w=15
Answer:
17
Step-by-step explanation:
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