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maw [93]
2 years ago
10

See image attached below

Mathematics
1 answer:
natali 33 [55]2 years ago
6 0

Answer:

x = 35

Step-by-step explanation:

The figure has 6 angles so the figure is a convex hexagon

The sum of interior angles in a convex hexagon is equal to 720

4x - 5 + 117 + 3x - 3 + 3x + 6 + 118 + 4x -3 = 720 <u>add like terms</u>

14x + 230 = 720 <u>subtract 230 from both sides</u>

14x = 490 <u>divide both sides by 14</u>

x = 35

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Mrrafil [7]
It’s 21.99


Use c=2pi*radius
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6 0
2 years ago
A consulting firm had predicted that 35% of the employees at a large firm would take advantage of a new company Credit Union, bu
m_a_m_a [10]

Answer:

a) 0.4770

b) 3.9945

c) z-statistics seem a large value

Step-by-step explanation:

<u>a. Find the standard deviation of the sample proportion based on the null hypothesis</u>

Based on the null hypothesis:

p_{0}: 0.35

and the standard deviation σ = \sqrt{p_{0} *(1-p_{0}) } =\sqrt{0.35 *0.65 } ≈0.4770

<u>b. Find the z statistic</u>

z-statistic is calculated as follows:

z=\frac{X-p_{o} }{\frac{s}{\sqrt{N} } } where

  • X is the proportion of employees in the survey who take advantage of the Credit Union (\frac{138}{300}=0.46)
  • p_{0} is the proportion in null hypothesis (0.35)
  • s is the standard deviation (0.4770)
  • N is the sample size (300)

putting the numbers in the formula:

z=\frac{0.46-0.35} }{\frac{0.4770}{\sqrt{300} } } = 3.9945

<u>c. Does the z statistic seem like a particularly large or small value?</u>

z-statistics seem a large value, which will cause us to reject the null hypothesis.

4 0
3 years ago
X+50=278<br><br> PLease help really quick
Anon25 [30]

Answer: x= 228

x= 278-50

x=228

7 0
3 years ago
Read 2 more answers
Is (7,8) a solution of the equation 2x+y=6
victus00 [196]

no it is not i don’t think that adds up correctly if u do the problem

7 0
3 years ago
Read 2 more answers
PLEASE HELP!! WILL GIVE BRAINLIEST!!
Komok [63]

Answer:

The number is 3.

Step-by-step explanation:

5x3=15+12=27

9x3=27

Hope this helps

5 0
3 years ago
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