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daser333 [38]
3 years ago
13

Find 3 + (-9)

Mathematics
1 answer:
AURORKA [14]3 years ago
4 0
9 is in parentheses therefore it's elevated above 3 that means you have to do operations on it first.
3 + (-9) = -6
The sum is negative.
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Which two points in the graphed function have an average rate of change of 5?
photoshop1234 [79]

First of all, a positive average rate of change means that the function is increasing, so the answer can only be A->B or B->C.

The average rate of change is defined as

A = \dfrac{f(b)-f(a)}{b-a}

i.e. as the ratio between the vertical and horizontal gain.

In order to go from point A to point B, you gain 1 unit horizontally and 5 units vertically. So, the average rate of change is 5/1=5.

In order to go from point B to point C, you gain 1 unit horizontally and 3 units vertically. So, the average rate of change is 3/1=3.

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3 years ago
A plane travels at a constant speed. It takes 6 hours to travel 3360 miles.
ivolga24 [154]

Answer:

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B-5600

Step-by-step explanation:

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To find the answer for B we need to multiply the answer for A (560) by 10 which gives us 5600

3 0
3 years ago
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Rudik [331]

Answer:

x > 0

Step-by-step explanation:

3 0
3 years ago
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sergeinik [125]

Answer:

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Step-by-step explanation:

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Please give brainliest if this answer satisfies your question.

4 0
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marin [14]

Answer:

All real numbers except 3

Step-by-step explanation:

Given

\frac{x - 4}{2x - 6}

Required

Determine the domain

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Divide both sides by 2

\frac{2x}{2}\neq  \frac{6}{2}

x \neq  \frac{6}{2}

x \neq = 3

<em>As such, the domain of x is all real numbers except 3</em>

4 0
3 years ago
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