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Musya8 [376]
3 years ago
11

Quadrilateral ABCD is reflected over the x-axis. What are the coordinates of

Mathematics
2 answers:
kari74 [83]3 years ago
7 0

Answer:

<h2>A</h2>

Step-by-step explanation:

Let A=(a,b) then the reflected over the x-axis will be A'=(a,-b)

A=(5,5) --> A'=(5,-5)

B=(5,1) --> B'=(5,-1)

C=(2,1) --> C'=(2,-1)

D=(1,5) ---> D'=(1,-5)

m_a_m_a [10]3 years ago
5 0

Answer: A

Step-by-step explanation:

X values to the right of the y axis are positive. X values to the left of the y axis are negative.

Y values above the x axis are positive.

Y values below the x axis are negative.

Pairs of coordinates are always noted as (x,y) with the x value of a point given first and the y value of that same point given second.

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Answer:

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Step-by-step explanation:

<u>Step (i):</u>-

A sample of 26 main roads results in a mean waiting time of 21.1 minutes with a sample standard deviation of 5.4 minutes.

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<u>Null hypothesis: H₀</u> :  The council decides that it will increase the transportation budget if the amount of waiting time for drivers exceeds 18 minutes.

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<u>Alternative hypothesis</u> :H₁:  

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<u>Level of significance :</u> ∝=0.05

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The test statistic

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Null hypothesis is rejected at  5% significance level of significance

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