Hi. I need to know how to- write a radical expression as a radical exponent??
2 answers:
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Answer:
First one: 37.5
Second one: 108
Step-by-step explanation:
For the first one:
the figure shown is a triangle
The area of a triangle can be calculated using this formula
where b = base length and h = height
The triangle shown has a height of 7.5 and a base length of 10
Using this information we plug in the values into the formula.
Hence the area of the figure is 37.5 square units
For the second one.
The figure shown is a parallelogram with a height of 9 and a base length of 12
The area of a parallelogram can simply be calculated by multiplying the base length by the height
So area = 9 * 12
9 * 12 = 108
Hence the area of the figure is 108 square units
Answer:
Option (b) 36.7
Step-by-step explanation:
Data provided in the question:
Treatment 1 Treatment 2 Treatment 3 Treatment 4
Sample Size 50 18 10 17
Sample Mean 32 36 42 48
Now,
The overall mean is calculated as
=
Here, Xi = Sample mean
n = sample sizes
Thus,
Overall mean
= [ (50 × 32) + (18 × 36) + (10 × 42) + (17 × 48) ] ÷ [ 50 + 18 + 10 + 17 ]
= [ 1600 + 648 + 420 + 816 ] ÷ 95
= 36.67 ≈ 36.7
hence,
Option (b) 36.7