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3 years ago

SWBAT understand and interpret functions notation

Mathematics

1 answer:

lyudmila [28]3 years ago

3 0

Replace all x with -3
f(-3)=(-3)^2+2(-3)
f(-3)=9-6
f(-3)=3

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Select the table that represents a proportional relationship between x and y.

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Answer:

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Step-by-step explanation:

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3 years ago

Carole's car averages 13.2 mi/gal in city driving and 25.3 mi/gal in highway driving. If she drove a total of 396.0 mi on 19 gal

nika2105 [10]

Answer:

7 gallons were used for city driving.

Step-by-step explanation:

I am going to solve this question by a system of equations.

I am going to say that:

x is the number of gallons driven in the city.

y is the number of gallons driven in the highway.

19 gal of gas

This means that $x + y = 19$

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This means that $13.2x + 25.3y = 396$

How many of the gallons (to the nearest gallon) were used for city driving?

This is x

From the first equation, i will have

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Replacing in the second equation

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$13.2x - 25.3x = 396 - 480,7$

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$x = \frac{84.7}{12.1}$

$x = 7$

7 gallons were used for city driving.

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3 years ago

What is the zero three miles below sea level integer

erastovalidia [21]

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Answer:

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Step-by-step explanation:

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Answer:

C. 83%; 17%

Step-by-step explanation:

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Answer:

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