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4 years ago

When is a sequence geometric?

Mathematics

2 answers:

ladessa [460]4 years ago

4 0

The answer is A. Geometric means multiply & you have to multiply by the same number for it to be a sequence

podryga [215]4 years ago

4 0

Answer: The answer is (A) when each term is multiplied by the same number to get the next term.

Step-by-step explanation: We are given four types of sequences out of which we are to select the geometric sequence.

A geometric sequence, is a sequence of numbers where each term after the first term is found by multiplying the previous one by a fixed, non-zero number, which is called the common ratio.

For example, the sequence 3, 6, 12, 24, ... is a geometric progression with first term 3 and common ratio 2.

Thus, the correct option is (A).

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X - 7 < -20 inequalify

Naily [24]

Step-by-step explanation:

x - 7 < -20

x < -20 + 7

x < -13

X = (-12, -11, -10,...)

3 0

3 years ago

Kyoko is reading a book by her favorite author. She read the first 20 pages in One-half of an hour. Reading at the same pace, Ky

irga5000 [103]

Answer:

It will take her 3 hours to read 120 pages.

Step-by-step explanation:

The number of pages read(y) after x hour can be modeled by a linear function in the following format:

$y = ax + b$

In which a is the number of pages read per hour and b is the initial number of pages read.

A straight line goes through (0, 0)

This means that when $x = 0, y = 0$

$y = ax + b$

$0 = a*0 + b$

$b = 0$

(0.5, 20)

When $x = 0.5, y = 20$

$y = ax$

$20 = 0.5a$

$a = \frac{20}{0.5}$

$a = 40$

The function in:

$y(x) = 40x$

According to the graph, which statement must be true?

It will take her 2 hours to read 60 pages.

$y(2) = 40*2 = 80$

Less than 2 hours for 60 pages, so this is false.

It will take her 3 hours to read 120 pages.

$y(3) = 40*3 = 120$

This statement is true.

It will take her 4 hours to read 180 pages.

$y(4) = 40*4 = 160$

More than 4 hours to read 180 pages. So false.

It will take her 5 hours to read 210 pages.

$y(5) = 40*5 = 200$

More than 5 hours to read 210 pages. So false.

8 0

3 years ago

PLEASE HELP ASAP

liberstina [14]

Answer: 0.3 + 0.15 =0.45 use that for all of them

Step-by-step explanation:

6 0

4 years ago

A pile of 10 000 sheets of paper is 85 cm thick what is the thickness of 1 sheet of paper

leonid [27]

Answer:

0.0085 centimeters.

Step-by-step explanation:

85/10000 is equal to 0.0085 centimeters, which is absurdly thin for anything, really.

3 0

3 years ago

La Dosis de un medicamento es de 120mg el primer dia y 5mg menos cada uno de los siquientes. el tratamiento dura 12 dias ¿Cuanto

Alenkasestr [34]

El paciente debe tomar 1,110 miligramos.

4 0

3 years ago