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Yuri [45]
3 years ago
12

Find the value of x.

Mathematics
1 answer:
Aneli [31]3 years ago
6 0
Answer: x=66
explanation: x+(x-20)+(2x+10)+(x+40)=360
5x+30=360
5x=330
x=66
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Nonamiya [84]

Fun.  I prefer Oxymetazoline.

For the control group we have a headache probability of

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The variance of the difference is

s² = c(1-c)/n₁ + e(1-e)/n₂

so the standard deviation is

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We get a t statistic on the difference of

t = d/s = .025/.0139 = 1.79

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p = P(z > 1.79) = 1 - .96327  = 0.037 = 3.7%

Answer: That's less that 10% so we have evidence to conclude that headaches are significantly greater in the experimental group.

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4 years ago
Which figure has at least one line of symmetry?
CaHeK987 [17]

Answer:

the second green shape because the first one is a rectangle which has 2 equal sides

6 0
3 years ago
1.What is the area of the circles<br><br> What is the area of the shaded region?
Rama09 [41]

Answer:

47.32 in^2

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178

Step-by-step explanation:

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$5,520.00 there ya go

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3 years ago
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