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Verdich [7]
3 years ago
12

Sasha noticed that the graph of the sales of yearbooks represented a proportional relationship. How could she have calculated th

e constant of proportionality by looking at the graph?
She could divide any y-value by its corresponding x-value.
She could divide any x-value by its corresponding y-value.
She could add any y-value to its corresponding x-value.
She could subtract any x-value from its corresponding y-value.
Mathematics
2 answers:
Arlecino [84]3 years ago
5 0

Answer:

D

Step-by-step explanation:

k0ka [10]3 years ago
3 0

Answer: i think d

Step-by-step explanation:

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The pizza shop sells artwork by local artists. For each piece it sells, the shop receives a 15 percent commission. The most expe
Margarita [4]

Answer:

The 15 percent commission is what the shop received.

Step-by-step explanation:

It said that the most expensive piece it ever sold was 225

not that the most money they made is 225

5 0
3 years ago
Help me plz i need to do this
Lina20 [59]
Which question do you need answered or both?
5 0
3 years ago
Prove Euler's identity using Euler's formula.<br> e^ix = cos x + i sin x
Korolek [52]

First list all the terms out.

e^ix = 1 + ix/1! + (ix)^2/2! + (ix)^3/3! ...

Then, we can expand them.

e^ix = 1 + ix/1! + i^2x^2/2! + i^3x^3/3!...

Then, we can use the rules of raising i to a power.

e^ix = 1 + ix - x^2/2! - ix^3/3!...

Then, we can sort all the real and imaginary terms.

e^ix = (1 - x^2/2!...) + i(x - x^3/3!...)

We can simplify this.

e^ix = cos x + i sin x

This is Euler's Formula.

What happens if we put in pi?

x = pi

e^i*pi = cos(pi) + i sin(pi)

cos(pi) = -1

i sin(pi) = 0

e^i*pi = -1 OR e^i*pi + 1 = 0

That is Euler's identity.

3 0
3 years ago
What’s the area and perimeter for this problem?
notka56 [123]

Answer:

the area of the triangle is 41

the perimiter of the triangle is 33.25

Step-by-step explanation:

4 0
2 years ago
Simplify each expression.<br>1) -8(k - 4)​
Lera25 [3.4K]

Answer:

<h2>-8(k - 4) = -8k + 32</h2>

Step-by-step explanation:

-8(k - 4)         <em>use the distributive property: a(b + c) = ab + ac</em>

= (-8)(k) + (-8)(-4) = -8k + 32

6 0
3 years ago
Read 2 more answers
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