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igor_vitrenko [27]
3 years ago
6

Find the perimeter of the parallelogram STUV. Use 3.14 for pi.

Mathematics
2 answers:
Vladimir79 [104]3 years ago
8 0

(You don't need to use pi to find the perimeter of the parallelogram STUV)

12*2 + 8*2 = 24 + 16 = 40

sweet-ann [11.9K]3 years ago
7 0
Since parallelograms have two sets of congruent sides, the perimeter will be
12+12+8+8 = 40
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Answer is C. VT just took the test and this was the answer 100 percent.

Step-by-step explanation:

just took the test

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6)a garden was square, but last year she made it makes or shortening one side 5 meters and the other 8 meters. If the area of th
Alekssandra [29.7K]

Answer:

let dimention of original garden be x

then (x-8)(x-5) = 180

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5 0
2 years ago
Suppose a consumer group suspects that the proportion of households that have three cell phones NOT known to be 30%. A cell phon
leva [86]

Answer:

We conclude that the actual percentage of households is equal to 30%.

Step-by-step explanation:

We are given that a consumer group suspects that the proportion of households that have three cell phones NOT known to be 30%.

Their marketing people survey 150 households with the result that 43 of the households have three cell phones.

Let p = <u><em>proportion of households that have three cell phones NOT known.</em></u>

So, Null Hypothesis, H_0 : p = 30%      {means that the actual percentage of households is equal to 30%}

Alternate Hypothesis, H_A : p \neq 30%     {means that the actual percentage of households different from 30%}

The test statistics that would be used here <u>One-sample z-test for proportions;</u>

                                T.S. =  \frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion of households having three cell phones = \frac{43}{150} = 0.29

           n = sample of households = 150

So, <u><em>the test statistics</em></u>  =  \frac{0.29-0.30}{\sqrt{\frac{0.30(1-0.30)}{150} } }  

                                     =  -0.27

The value of z test statistic is -0.27.

<u>Also, P-value of the test statistics is given by;</u>

              P-value = P(Z < -0.27) = 1 - P(Z \leq 0.27)

                            = 1 - 0.6064 = <u>0.3936</u>

<u>Now, at 1% significance level the z table gives critical value of -2.58 and 2.58 for two-tailed test.</u>

Since our test statistic lies within the range of critical values of z, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which <em><u>we fail to reject our null hypothesis</u></em>.

Therefore, we conclude that the actual percentage of households is equal to 30%.

4 0
3 years ago
IS 10×1000 a multiplication fact?
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Yes if u can multiply 10 by 1000 then it is a multiplication fact
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Graph of line going through ordered pairs (0, 300) and (450, 0)
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The equation would be y=2/3x+300
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