Please help me answer the question in the picture

Mathematics

1 answer:

Lelu [443]3 years ago

5 0

Answer:

C) (3, -1)

Step-by-step explanation:

answer for A p e x

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It is given that q=(h^2-k^2)/(3m). Express k in terms of q, m and h.

Lemur [1.5K]

$q = \frac{h^2-k^2}{3m} \\ 
q(3m)=h^2-k^2 \\
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Which describes the slope of the line in the graph?

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D) undefined
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Explain how you could use a number line to show that -4 + 3 and 3 + (-4) have the same value

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-4 -3 -2 -1 0 1 2 3
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in other words adding a negative is the same as subtracting a postitve

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4 years ago

When solving: 1,175 ÷ 5, using partial quotients, how would you decide which power of 10, when multiplied by 5, should be subtra

grandymaker [24]

Answer:

When doing this how you would decide the power of ten is by thinking and finding it. And then multiple that by five and yes subtract that

Step-by-step explanation:

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3 years ago

The initial cost of an office fax machine is $100. After 1 year, its value becomes $80. Which is the correct linear depreciation

Elis [28]

Answer:

$y=100-20x$

Step-by-step explanation:

Let the x-axis be the time (in years) and the y-axis the value of the fax machine (in dollars).

We know that the initial value of the fax machine is $100; in other words, when the time is zero years, the value is $100, or as an ordered pair (0, 100). We also know that after 1 year the value decreases to $80, so (1, 80).

Now we can find the slope of the line passing through those two points using the slope formula

$m=\frac{y_2-y_1}{x_2-x_1}$