3 years ago

What is the value of the function at x = 3?

1 answer:

6 0

The value of the function is 4 when x=3.

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attashe74 [19]

The sequence is geometric, so

$a_n = r a_{n-1}$

for some constant r. From this rule, it follows that

$a_3 = r a_2 \implies 20 = 2r \implies r = 10$

and we can determine the first term to be

$a_2 = r a_1 \implies 2 = 10 a_1 \implies a_1 = \dfrac15$

Now, by substitution we have

$a_n = r a_{n-1} = r^2 a_{n-2} = r^3 a_{n-3} = \cdots$

and so on down to (D)

$a_n = r^{n-1} a_1 = 10^{n-1} \cdot \dfrac15$

(notice how the exponent on r and the subscript on a add up to n)

4 0

2 years ago

balandron [24]

The answer is 4/8 because half of 16 is 8 and half of 8 is 4, therefore they are equivalent

3 0

3 years ago

zhuklara [117]

Let's assume length of the room as y
so the width of the room = y - 5

Area
y * (y - 5) = 750

3 0

3 years ago

Bogdan [553]

Answer: True

Step-by-step explanation:

We try to keep the number greater than 1 and lower than 10, so between 1, and 9.

For example: 3545346 would be 3.5x10^6

you can see 3.5 is between 1 and 9

8 0

3 years ago

soldier1979 [14.2K]

2 B boxes will fit in 1 A box

6 0

3 years ago