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cricket20 [7]
2 years ago
13

100 points and brainliest for correct answer!

Mathematics
1 answer:
MatroZZZ [7]2 years ago
4 0
Answer B.

∑fx=1637,∑fx
2
=127663,∑f=21
x
ˉ
=Mean=
∑t
∑fx
​
=77.95
σ
2
=
∑f
∑fx
2

​
−(
x
ˉ
)
2
=
21
127663
​
−(77.95)
2
=2.987
σ=1.728
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Draw the graph of f(x) = (x − 1)2 − 2. Start by creating a table of ordered pairs for the function. Then plot the points from th
pogonyaev

The attached graph represents the graph of f(x) = (x - 1)^2 - 2

<h3>How to plot the graph?</h3>

The equation is given as:

f(x) = (x - 1)^2 - 2

Next, we set x to -2, -1, 0, 1 and 2.

So, we have:

f(-2) = (-2 - 1)^2 - 2 = 7

f(-1) = (-1 - 1)^2 - 2 = 2

f(0) = (0 - 1)^2 - 2 = -1

f(1) = (1 - 1)^2 - 2 = -2

f(2) = (2 - 1)^2 - 2 = -1

This means that the table of values is

x      f(x)

-2    7

-1    2

0    -1

1     -2

2    -1

Next, we plot the above points and connect them.

See attachment for the graph of f(x) = (x - 1)^2 - 2

Read more about graphs and functions at:

brainly.com/question/4025726

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7 0
2 years ago
Find the area of each shape, please help and I will give a lot points
Alex73 [517]

Answer:

15. Area of parallelogram = bh

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    h = 4m

    a = 9*4 = 36m^2

   You can also use the rectangle property here.

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    a = 9*6 = 54 m^2

    Though I would prefer the first one better.

16. Area of triangle = 1/2*bh

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    a = 17*3/2 = 51/2 = 25.5m^2

18. Area of a trapezium = a+b/2*h (a and b are two parallel sides and h the            height)

a = 15

b = 7

h = 15

a = 15+7/2*15 = 22/2*15 = 11*15 = 165m^2

19. Area of triangle = 1/2*bh

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    h = 7

    a = 24*7/2 = 168/2 = 84

Hope u understood

Please mark as brainliest

Thank You

5 0
2 years ago
what is the product in simplest form state any restrictions on the variable x+​2/​x-​1/​x+​4/​x^​2+​4*​x-​5
ValentinkaMS [17]

When it is simplified it is (\frac{(x+2)(x+5)}{x+4})

1 or 5

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3 years ago
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For this equation, let b equal the cost per box.
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A 20 cm long thin wire is used to form a square. What is the area of the square?
sergij07 [2.7K]

Answer:

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