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KonstantinChe [14]
3 years ago
7

The formula for finding the perimeter of a rectangle is P = 2 × l + 2 × w.

Mathematics
1 answer:
shepuryov [24]3 years ago
7 0

Answer:

D.Trapezoid

Step-by-step explanation:

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A cube and the net for the cube are shown. <br><br> What is the surface area of this cube?
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Ok, 6×25=150, since there are 6 sides, the answer is 150cm.
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taylor bought 2 bottles of orange juice and a bottle of apple juice for $6.55. The bottle of apple juice cost $0.35 less than th
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$6.90 :)


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Chicken Delight claims that 87% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 80 or
jeka57 [31]

Answer:

There is strong evidence that less than 87% of the orders are delivered in less than 10 minutes.

Decision rule: Reject the null hypothesis if (P-value < level of significance)

Test statistic z=-2.70

Decision: Reject the null hypothesis (0.003<0.010)

Step-by-step explanation:

In this question we have to test an hypothesis.

The null and alternative hypothesis are:

H_0: \pi\geq0.87\\\\H_a:\pi

The significance level is assumed to be 0.01.

The sample of size n=80 gives a proportion of p=61/80=0.7625.

The standard deviation is:

\sigma=\sqrt{\frac{\pi(1-\pi)}{N} }=\sqrt{\frac{0.87*0.13}{80} }=0.0376

The statistic z is then

z=\frac{p-\pi+0.5/N}{\sigma}=\frac{0.7625-0.87+0.5/80}{0.0376} } =\frac{-10125}{0.0376} =-2.70

The P-value is

P(z

The P-value (0.003) is smaller than the significance level (0.010), so the effect is significant. The null hypothesis is rejected.

There is strong evidence that less than 87% of the orders are delivered in less than 10 minutes.

Decision rule: Reject the null hypothesis if (P-value < level of significance)

Test statistic z=-2.70

Decision: Reject the null hypothesis (0.003<0.010)

6 0
3 years ago
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A pitcher of fruit punch holds 2 gallons. If 9 people share the entire pitcher equally, how much pitcher does each person get?
bonufazy [111]
The answer is .23 gallons
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