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Akimi4 [234]
3 years ago
8

The point ( -6 , 8 ) is reflected across the y axis. What is the coordinates of the reflection

Mathematics
2 answers:
Digiron [165]3 years ago
6 0

The new coordinations would be (6,8)

Neporo4naja [7]3 years ago
5 0

Answer:

(6, 8)

Step-by-step explanation:

The y- axis (the vertical axis) acts as a mirror point.  When reflecting over the y axis, the y value will stay the same.  Think about looking into a mirror on your wall, your height is the same on both sides of the vertical reflecting object

The x-value will change and be the other side of the y-axis.  It will be the same distance away from the y-axis that is was, but will have an opposite sign.

Here is was 6 units to the left of the y-axis (where x values are negative), now it is 6 units to the right of the y-axis (where x values are positive)

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Slav-nsk [51]

The profit of that day is (C) P = $3,000.

<h3>What is profit?</h3>
  • A profit is a difference between the revenue generated by an economic entity's outputs and the opportunity costs of its inputs.
  • Total revenue minus total cost, including both explicit and implicit costs, equals total revenue.
  • Unlike accounting profit, it only refers to the explicit costs that appear on a company's financial statements.
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To find the profit of that day:


Given:

  • P = 500x − 20x², where 'x' is the number of machines per day produced.
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By substituting x = 10 in the above equation, we get:

  • P = 500 × 10 - 20 × 10²
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Therefore, the profit of that day is (C) P = $3,000.

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2 years ago
Triangle ABC is similar to triangle CDE. Both are right triangles.
Morgarella [4.7K]
Let's review "similar" and "congruent."  "Congruent" means the same--so two congruent line segments will be the same length; two congruent figures have the same angle measures, same side lengths, same area, etc.  "Similar" means that the sides and area are PROPORTIONAL, not the same: you can divide or multiply them all by the same number and get the measures of the other.  Note that the angles must still be the same measures.

So, let's look at A, first comparing AB and CD.  AB is 4 units long, and CD is 2 units long.  4/2=2, so AB is twice the length of CD.  What about BC and DE?  BC=6, and DE=3.  6/3=2.  Since BOTH AB and BC are twice the length of CD and DE, they are proportional.  A is correct!

In B, if side AC has the same slope as side CE, then basically they have the same incline.  They are on the same line, and this line has a slope.  Since they are both on this line, they both must have the same slope as this line, and therefore the same slope as each other.  B is correct.

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