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fredd [130]
3 years ago
15

The receipt shows the prices of goods that Robert bought at the store.

Mathematics
1 answer:
Vladimir79 [104]3 years ago
5 0

Answer:

4%

Step-by-step explanation : by subtracting the 8 by 4

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Explain why a graph that fails the vertical-line test does not represent a function. Be sure to use the definition of a function
ArbitrLikvidat [17]

Explanation:

A function is a relationship where any one x-value/input only has <u>one </u>corresponding y-value/output. (note: a y-value can have multiple x-values).

> This can be called "assigning one y-value to every x element".

The vertical line test places a line that would connect all y-values of an x-value (that is, if it were to have multiple y-values). If multiple points can be found along the vertical line, it is, therefore, by the definition of a function, not a function. (Because an x-value will have more than one y-value).

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4 0
2 years ago
Solve the following formula for x y = 7 m x − 8 b
katovenus [111]

Answer: It depends on which variable you're solving for.

Step-by-step explanation:

Solving for b: b=7/8mx + -1/8xy

Solving for m: m=xy+8b

                             ______

                                   7x

Solving for x: x=-8b

                           ___

                          -7m+y

Solving for y: y=7mx-8b

                           ______

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7 0
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Help please I need answer asap
antiseptic1488 [7]

1) Vertical angles theorem

  • Angles EOF and BOC are vertical angles.

2) Angle addition postulate

  • Angles AOB and BOC add to form angle AOC.

3) Linear pair

  • Angles that add to form a straight angl are a linear pair

4) Subtraction property of equality

  • They subtracted angle AOC from both sides.
6 0
1 year ago
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