Answer:
38°
Step-by-step explanation:
y = 142°
x + y = 180°{ being supplementary angles }
x + 142° = 180°
x = 180° - 142°
x = 38°
Hope it will help :)
Answer: Required 99% confidence interval : (48.30%, 61.7%)
Step-by-step explanation:
Confidence interval for PROPORTION:
, where p = sample proportion , z* = two-tailed critical z-value and S.E. = standard error.
As per given: p=55%
Critical z-value for 99% confidence = 2.576
S.E. = 2.6%
Then, required confidence interval :

Required 99% confidence interval : (48.30%, 61.7%)
Answer:
w > -1
Step-by-step explanation:
53w + 13 < 56w + 16
Get w to one side.
Subtract 53w from both sides.
13 < 3w + 16
Get 3w by itself.
Subtract 16 from both sides.
-3 < 3w
Divide both sides by 3 to solve for w.
-1 < w
or
w > -1
I hope this helps!
N = 40
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Step-by-step explanation:
9.(12/3)²
9.(144/9)
[The 9 in numerator and the 9 in denominator can be cancelled]
144
the answer is 144
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