Given M = 120, σ = 5.6
P (117.4 <x<120)
P (" 117.4-120 5.6 < X-M 120-120 5.6
P(-0.46 < 220)
= 0.5= P(-0.46 <2)
= 0.5 0.3212
0.1788
The standard deviation is 0.1788
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Standard definitions are established as a basis for rules, examples, or comparisons. An example of a standard is a policy governing what 7th graders must learn. An example of a standard is music that has been played many times over the years.
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Answer:
60.9º
Step-by-step explanation:
tan = opp/adj
tanX = 45/25
X = arctan 45/25
use calculator
X = 60.945395900922855
Rounded
60.9º
Let's solve for x first,
3x + 5y - 5y = 1 - 5y
3x/3 = 1/3 - 5y/3
x = 1/3 - 5/3y
Let's now plug that into the other equation,
7(1/3 - 5/3y) + 4y = -13
7/3 - 35/3y + 4y = -13
7/3 - 7 2/3y - 7/3 = -13 - 7/3
- 7 2/3y (-3/23) = -15 1/3 (-3/23)
y = 2
The answer is 2
I make you like it when you do 67
