Answer:
measure of angle YVZ=56°
Step-by-step explanation:
angle WVY and angle YVZ form a right angle, meaning they add to 90 degrees.
We can make an equation out of this:
2x+3x+5=90
solve for x
5x+5=90
5x=85
x=17
substitute x back into the expression for angle YVZ because that's the measure we're looking for
angle YVZ=3(17)+5=56
Answer:
Step-by-step explanation:
The result of the decrease of the number 14.4 by 0.2 of it is of 14.2.
<h3>What does it mean to decrease a number a by b of it?</h3>
The equivalent operation is the subtraction of a by b.
In this problem, we want to decrease the number 14.4 by 0.2 of it, hence the operation is:
14.4 - 0.2 = 14.2.
More can be learned about subtraction operations at brainly.com/question/4721701
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Answer:
is 5.8
Step-by-step explanation:
i do it in a calculador so is 5.5
Answer:
Standard error = 0.34
t-statistic = 11.18
Step-by-step explanation:
Given Data:
Mean difference d = 3.8
Standard deviation S.D = 1.36
Number of people = 16
The appropriate test are:
1. Standard error
2. T- statistic
1. Calculating the standard error using the formula;
Standard error = S.D/√n
= 1.36/√16
= 1.36/4
= 0.34
2. Calculating the t-statistic using the formula;
t-statistic = d/(S.D/√n)
= 3.8/(1.36/√16)
= 3.8/(1.36/4)
= 3.8/0.34
= 11.18
