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riadik2000 [5.3K]
3 years ago
5

I don't understand no this at all​

Mathematics
1 answer:
Katena32 [7]3 years ago
8 0

Answer:

Just get the perimeter of the smaller rectangle then times it by 4

Step-by-step explanation:

i tried to use a calculator but i cant do the perimeter of the smaller triangle because i dont know what x is sorry ill try to figure it out.

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Pre Calc work, I need help with writing piece wise functions from graphs. Can anyone help? Giving brainliest
Andrei [34K]

The definition of the piece-wise function is:

  • f(x) = 2.5x + 1, -2 \leq x \leq 2
  • f(x) = -3, 2 < x < 6.

<h3>What is a piece-wise function?</h3>

A piece-wise function is a function that has different definitions, depending on the input.

In this problem, for inputs between -2 and 2, the function is a line that goes through (-2,-4) and (2,6). The slope is:

m = (6 - (-4))/(2 - (-2)) = 2.5.

The y-intercept is of b = 1, hence the rule is:

f(x) = 2.5x + 1, -2 \leq x \leq 2

For x greater than 2 and less than 6, the function is constant at -3, hence the rule is:

f(x) = -3, 2 < x < 6.

More can be learned about piece-wise functions at brainly.com/question/27262465

#SPJ1

5 0
2 years ago
A triangle is shown. The table names different transformations that can be applied to the triangle.
Citrus2011 [14]

The given transformations are rigid transformation in which the image

can be located by a formula.

Response:

First reflect across the x-axis then reflect across the y-axis

  • Figure: Second graph

First, rotate 180° counterclockwise around the origin. Then reflect across the x-axis.

  • Figure: Third graph

First translate 9 units to the left. Then reflect across the x-axis

  • Figure: First graph

<h3>Which method is used to determine the transformation of an image?</h3>

The coordinates of (x, y) following a reflection across the x-axis is (x, -y)

The coordinates following a reflection across the y-axis is (-x, y)

The points of the triangle following the first transformation is therefore;

(4, 4) → (4, -4) → (-4, -4)

(8, 4) → (8, -4) → (-8, -4)

(6, 6) → (6, -6) → (-6, -6)

The image from the first transformation is (-4, -4), (-8, -4), (-6, -6), which

corresponds to the <u>second graph</u>.

The coordinates following a rotation of (x, y) by 180° about the origin is (-x, -y)

A reflection of the point (-x, -y) about the x-axis is (-x, y).

Therefore;

(4, 4) → (-4, -4) → (-4, 4)

(8, 4) → (-8, -4) → (-8, 4)

(6, 6) → (-6, -6) → (-6, 6)

The image from the second transformation is (-4, 4), (-8, 4), (-6, 6), which corresponds to the <u>third graph</u>.

The coordinates following a translation of 9 units to the left is (x - 9, y)

A reflection of the point (x - 9, y) about the x-axis is (x - 9, -y)

Therefore;

(4, 4) → (4 - 9, -4) = (-5, -4)

(8, 4) → (8 - 9, -4) = (-1, -4)

(6, 6) → (6 - 9, -6) → (-3, -6)

The image from the third transformation is (-13, -9), (-1, -4), (-7, -6), which corresponds to the<u> first graph</u>.

Learn more about rigid transformations here:

brainly.com/question/11408409

6 0
3 years ago
Read 2 more answers
Solve the linear equation by combining like terms: 23 + 7 - 2x = 8x
Aleks [24]

Answer:

23+7-2x=8x

We simplify the equation to the form, which is simple to understand  

23+7-2x=8x

We move all terms containing x to the left and all other terms to the right.  

-2x-8x=-23-7

We simplify left and right side of the equation.  

-10x=-30

We divide both sides of the equation by -10 to get x.  

x=3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Rida and elisa are each paid by the hour. rida worked 5 1\2. hours and earned 77. elisa worked 3 3\4 HOURS AND EARNED 60. WHOSE
skad [1K]
Rida:
5 1/2 :77
5.5 : 77
Divide both sides by 5.5 to get $/hour:
1:14

Elisa:
3 3/4:60
3.75:60
Divide both sides by 3.75 to get $/hour:
1:16

16 is bigger than 14 so Elisa earns more.

Hope this helps :)

5 0
4 years ago
Which is greater 8/10 or 63/100 ?
bazaltina [42]
8/10 is greater than 63/100, it is grater because when u change them into a percentage 8/10 is higher
4 0
3 years ago
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