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Galina-37 [17]
3 years ago
9

so my teacher ask the class a question one of those questions i didn't understand so i came on brainly.com and know i want to no

w what is 56 times 2
Mathematics
2 answers:
Zigmanuir [339]3 years ago
6 0
56 times 2 is 112. But if you have a device to access brainly on, then I'm sure you have a calculator.
zheka24 [161]3 years ago
3 0
56 times 2 you can use the distributive prop 50 times 2 100 then do 6 times 2 12 100+12=112
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Irina-Kira [14]

Given :

p = 0.68

margin of error, E = 0.1

99% confident interval

alpha, α = 1 - 0.99

             = 0.01

$\frac{\alpha }{2}=\frac{0.01}{2} = 0.005$

∴ $z_{\alpha/2}=z_{0.005}=2.5758$ (z-critical value)

Sample size = $z_{\alpha/2} \times \frac{p(1-p)}{E^2}$

                    $=(2.5758)^2 \times 0.68 \times \frac{(1-0.68)}{0.1^2}$

                    $= 6.63475 \times 0.68 \times \frac{0.32}{0.01}$

                   = 144.37

                  = 145 (rounded off)

Therefore, there are 145 businesses does she need to sample to meet this criteria.

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3 years ago
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r-ruslan [8.4K]
5x-4=4x+8
-4x. -4x
X-4=8
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5(12)-4=4(12)+8
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3 years ago
FREEE points to anyone who gets it
spayn [35]

Thank you!! Have a great day!

4 0
2 years ago
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mamaluj [8]
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Answer:

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Step-by-step explanation:

3 0
2 years ago
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