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denpristay [2]
1 year ago
12

If point B, shown on the coordinate plane below, is reflected over the y-axis to create B’, what will be the coordinates of B’?(

-5, 2)(5, 2)(-5, -2)(5, -2)

Mathematics
1 answer:
Reil [10]1 year ago
5 0

Solution

- The transformation for reflection over the y-axis is given below:

(x,y)\to(-x,y)

- We have been given the coordinate of B to be (-5, -2) as shown below:

- Thus, applying the transformation formula given above, we have:

\begin{gathered} (x,y)\to(-x,y) \\ (-5,-2)\to(-(-5),-2)=(5,-2) \end{gathered}

- Thus, the reflected point B' is

(5,-2)

- This is shown below:

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Answer:

therefore the correct options are:

B. the equation is an exponential decay equation.

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Step-by-step explanation:

i) the cost of an automobile is given by the equation is

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ii) the above equation is an exponential decay equation. It is a decay equation because growth rate is 0.73 which is less than 1 and greater than zero.

ii) when t = 0 then the cost is C(0) = 28000 represents the initial cost.

iii) from the equation in i) we can understand that the cost depreciates 27% per year over the course of t years.

therefore the correct options are:

B. the equation is an exponential decay equation.

F. $28000 represents the initial cost of an automobile that depreciates 27% per year  over the course of t years.

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3 years ago
(2 * 10^-2) +(9*10^-3)<br> Please before Wednesday
anzhelika [568]

Answer:

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Step-by-step explanation: Hopes this helps :)

3 0
2 years ago
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Describe the sampling distribution of Phat. Assume the size of the Population is 25,000. N = 500 P = 0.4 Determine the Mean of t
PIT_PIT [208]

Answer:

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Step-by-step explanation:

Given that :

Population size = 25000

n = 500 ; p = 0.4

Size of random sample (n) = 500

5% of population size : 0.05 * 25000 = 1250

Distribution is normally distributed since n < 5% of population size

Hence, the mean of the distribution = p = 0.4

Standard deviation = √((pq) /n)

q = 1 - p ; q = 1 - 0. 4 = 0.6

Standard deviation = √((0.4 * 0.6) /500)

Standard deviation = 0.0219089

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Answer:

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25 sin x = 16.2 * sin 49

sin x = (16.2 * sin 49) / 25

sin x = 0.48905

x = 29.28 degrees.

8 0
3 years ago
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Alex

Answer:

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Step-by-step explanation:

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