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2 years ago

Giving away brainly for help ASAP

Mathematics

1 answer:

Gelneren [198K]2 years ago

7 0

Answer:

$g(f(x))=25x^2-15x-7$

domain: (-∞,∞)

Step-by-step explanation:

g of f means plug the function f(x) in to x in the function g(x)

$g(f(x))=5(5x^2-3x-2)+3\\g(f(x))=25x^2-15x-10+3\\g(f(x))=25x^2-15x-7$

since this is a parabola with no interval, the domain (the graph on the x-axis from left to right) is all real numbers or (-∞,∞)

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Part a: Reflecting a point across the x-axis, changes the sign of the y-coordinate.

Part b: Reflecting a point across the y-axis, changes the sign of the x-coordinate.

Part c: Reflecting a point across both the axes, changes the signs of both the coordinates.

Explanation:

Part a: Reflecting a point across the x-axis

The reflection is a transformation of a figure which represents a flip.

The rule for a reflection over the x -axis is given by

$(x, y) \rightarrow(x,-y)$

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Thus, Reflecting a point across the x-axis, changes the sign of the y-coordinate.

Part b: Reflecting a point across the y-axis

The rule for a reflection over the y -axis is given by

$(x, y) \rightarrow(-x, y)$

Hence, this represents the change of sign of the x-coordinate.

Thus, Reflecting a point across the y-axis, changes the sign of the x-coordinate.

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3 years ago

How do I solve this problem step by step?

Rom4ik [11]

Answer:

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Step-by-step explanation:

Given:

Perimeter of the pentagon is 52 units.

Solve for value of v.

Solve:

Let first put it into a equation base on the given;

6v + 8 + 8 + 3v + 1 + v + 5 = 52

Add the numbers

6v + 22 + 3v + v = 52

Combine like terms

10v + 22 = 52

Subtract 22 from both sides

10v + 22 - 22 = 52 - 22

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Divide both sides by 10

10v/10 = 30/10

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Check Answer:

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For more information:

brainly.com/question/18640399

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