3 years ago

Identify the rule that correctly describes each sequence 12,8,4,0,-4.....

Mathematics

2 answers:

denis23 [38]3 years ago

6 0

Each term is 4 less than the previous term

Rina8888 [55]3 years ago

6 0

12-8=4
8-4=4
4-0=4 this should be enough to help you understand the answer

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3 years ago

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cricket20 [7]

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gregori [183]

Answer:

$(f-g)(x)=x^2-4x-21$

Step-by-step explanation:

We are given the two functions:

$f(x)=x^2-3x-28\text{ and } g(x)=x-7$

And we want to find:

$(f-g)(x)$

This is equivalent to:

$=f(x)-g(x)$

Substitute:

$=(x^2-3x-28)-(x-7)$

Distribute:

$=x^2-3x-28-x+7$

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3 years ago

A scale model of a city has a scale of 1 cm : 2.5 km. Two buildings in the model are 1.7 cm apart. To the nearest tenth of a kil

spin [16.1K]

This is the concept of linear proportionality, we are required to calculate the actual length between two buildings which have a distance of 1.7 cm when drawn to scale of 1 cm: 2.5 km. This can be calculated as follows;
actual distance= (distance on the map)*(scale factor)
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The answer is 4.25 km

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