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Rina8888 [55]
3 years ago
15

Simplify by combining like terms. -4a + b + 9 + a -b-3 plz help !

Mathematics
1 answer:
Sedaia [141]3 years ago
3 0

Answer:

- 3a + 6

Step-by-step explanation:

subtract and add like items together like

- 4a + a = -3a

b-b= 0

and

9-3 = 6

so the answer is

-3a +6

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4 years ago
The altitude above sea level of an airplane just after taking off from an airport on a high plateau is given by the linear funct
Zolol [24]

Answer:

Slope, m = 1100

y-intercept,c = 2491                                                            

Step-by-step explanation:

We are given the following in the question:

y(x) = 1100x + 2491

The above gives the altitude of the airplane above the sea level in feet(y) after x minutes since the take off.

Comparing the above equation, to a general linear equation, we have,

y = mx + c

where m is the slope and c is the y-intercept.

Comparing we get,

Slope, m = 1100

y-intercept,c = 2491

Interpretation:

  • The slope of equation tells us about the rate of change of function with unit increase in value of x. Thus, the altitude of airplane increases 1100 feet when the time increases by 1 minute.
  • The y-intercept is the value of y when x is 0. Thus, the altitude of airplane is 2491 feet when the airplane has not taken off.

6 0
3 years ago
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natita [175]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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nikitadnepr [17]

Answer:

Step-by-step explanation:

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7 0
2 years ago
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Natasha_Volkova [10]

Answer:

Step-by-step explanation:

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Hope this helps

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