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3 years ago

Write the first 4 terms of the sequence defined by the given rule f(n)=n2 -1

Mathematics

1 answer:

Softa [21]3 years ago

5 0

Answer:

Step-by-step explanation:

Substitute n = 1, n = 2, n = 3 and n = 4 to the equation f(n) = n² - 1:

f(1) = 1² - 1 = 1 - 1 = 0

f(2) = 2² - 1 = 4 - 1 = 3

f(3) = 3² - 1 = 9 - 1 = 8

f(4) = 4² - 1 = 16 - 1 = 15

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I dont get this please help me on this thanks

marishachu [46]

Answer:

x=-2

Step-by-step explanation:

-4(x-7)=36

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move constant to the right and change its sign

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3 years ago

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What are the zeros of the function? f(x)=+-6x

Step2247 [10]

The function given is a line with one zero at the center (0,0)

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3 years ago

Domain and range of: s={(-9,6),(5,6),(-3,0)}

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Answer:

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3 years ago

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tresset_1 [31]

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3 years ago

In a pot of chilli, there are 3 parts of beans to every 4 parts of ground beef if a total of 21 combined parts we're used to mak

serg [7]

Answer:

9 parts of beans and 12 parts of ground beef is in the chilli.

Step-by-step explanation:

Given:

In a pot of chilli, there are 3 parts of beans to every 4 parts of ground beef.

If a total of 21 combined parts we're used to make.

Now, to find each ingredients is in the chilli.

As, given there are 3 parts of beans to every 4 parts of ground beef.

Let the beans be $3x.$

And the ground beef be $4x.$

Total combined parts = 21.

Now, to get the each ingredients we solve an equation:

$3x+4x=21$

$7x=21$

Dividing both sides by 7 we get:

$x=3.$

The beans = $3x=3\times 3=9.$

The ground beef = $4x=4\times 3=12$ .

Therefore, 9 parts of beans and 12 parts of ground beef is in the chilli.

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4 years ago