Answer:
The 95% confidence interval is (29.54 - 53.46}
Step-by-step explanation:
given data:
Se = 6.1
n = 755
a) best estimate
b) at 95% confidence interval
at 95% confidence interval for [/tex]\mu[/tex]
The 95% confidence interval is (29.54 - 53.46}
So
100%=original
25% discount
100-25=75
it is 180 sale
75%=180
find 100%
a hack is to recognize that 75/3 times 4=100 so
75%=180
divide 3
25%=60
times 4
100%=240
the real way is proportions
75:180 =100:x
75/180=100/x
multiply both sides by 180x
75x=18000
divide 75
x=240
origitnal price=$240
Answer:
What are the equations and anwsers?
Let's apply the law of sine to calculate angle C
sin(81)/26 = sin(C)/28
0.1646 = sin(C)/28 and sin(C) =1.063. Sine sin(α) cannot be > than 1, so this triangle is invalid
Yes It is a right triangle
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