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Bas_tet [7]
3 years ago
12

F(x)=x^2 horizontal shift of 3 vertical shift of -2 reflected over the x-axis. Write the equation

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
5 0

f(x) = -(x-3)^{2} -2 is the required function.

<u>Step-by-step explanation:</u>

We have to find the transformation after the horizontal and vertical shifts and then reflection over the x-axis for the given function.

f(x) = x^{2}

If there is a horizontal shift of 3, then the function becomes, f(x) = (x-3)^{2}

If there is a vertical shift of -2, then the function becomes, f(x) = (x-3)^{2} -2

The function is reflected over the x- axis then the function becomes,

f(x) = -(x-3)^{2} -2

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the number of defectives in 10 different samples of 50 observations each is the following: 5, 1, 1, 2, 3, 3, 1, 4, 2, 3. what is
Law Incorporation [45]

The estimate of the population proportion of defectives is 0.05.

Given that,

There are 10 different samples of 50 observations, that is, total of 500 observations.

To find : The estimate of the population proportion of defectives

And total number of defectives from 500 observations is (5+1+1+2+3+3+1+4+2+3) = 25

Thus, the point estimate for the population proportion defectives will be,

=25/500=0.05

or just obtain the individual proportion of each sample and then take their average to obtain the same result.

Thus, the point estimate for the population proportion defectives will be 0.05

To learn more about proportion click here:

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1 year ago
An airplane travels 5040 kilometers against the wind in 9 hours and 6660 kilometers with the wind in the same amount of time. Wh
dmitriy555 [2]

Answer:

Wyzant

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Flying against the wind, an airplane travels 4200 km in 7 hours. Flying with the wind, the same plane travels 4000 km in 4 hours. What is the rate of the plane in still air and what is the rate of the wind?

Answer · 1 vote

Let Va = the velocity of the airplane Let Vw = the velocity of the wind When flying with the wind: (Va+Vw)*(4 hours) = 4000 4Va + 4Vw = 4000 4Vw = 4000 - 4Va Vw = 1000 - Va When flying against the wind: (Va-Vw)*(7 hours) = 4200 km7Va - 7Vw = 4200 Substitute 1000-Va for Vw and solve for Va: 7Va - 7(1000-Va) = 4200 7Va -7000 + 7Va = 4200 14Va = 11200 Va = 800 km/hr Rate of wind: Vw = 1000 - Va = 1000 - 800 = 200 km/hour

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Flying against the wind, an airplane travels 4500 in 5 hours. Flying with the wind, the same plane travels 4640 in 4 hours. What is the rate of the plane in still air and what is the rate of the wind?

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The speed of plane in still air is 1030 km/hr and wind

Step-by-step explanation:

6 0
3 years ago
Sam is planting a garden that measures
nikitadnepr [17]

Answer:

63.7 feet

Step-by-step explanation:

We can re-write the width and the length both as rational numbers:

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- Length: L=9.8=\frac{98}{10}

So now we can find the area of the garden by multiplying width and length:

A=wL=\frac{65}{10}\cdot \frac{98}{10}=\frac{65\cdot 98}{10\cdot 10}=\frac{6370}{100}=63.7


7 0
3 years ago
while roping a fence post jane catches the post 5/6 of the time. time catches the post 3/4 of the time. who catches the post mor
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5/6 is equivalent to 20/24

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3 0
3 years ago
the price of a board game was reduced from $40 to $25. by what percentage was the price of the board game reduced?
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