All categories

3 years ago

Is this an arthimatic sequence ? 10,20,40,80

Mathematics

1 answer:

elena55 [62]3 years ago

7 0

An arithmetic sequence has a common difference between each term in the series. A geometric sequence has a common ratio between each term in the series.

First, let's determine the rate of change between each term.

10, 20 = multiplied by 2

20, 40 = multiplied by 2

40, 80 = multiplied by 2

The terms appear to have a common ratio of 2, making this a geometric sequence. Therefore, this is NOT an arithmetic sequence.

You might be interested in

What is the value of –1.9 – q when q = 6.7?

inessss [21]

I gotchu the answer is -8.6

8 0

3 years ago

write the equation in slope intercept form of the line that passes through -1, 11 and is parallel to the graph of y = -8x + 3

lawyer [7]

<h2>Answer: The line from the question [ y = -8x + 3 ] passes through the point ( -1, 11 ). </h2>

<h3 /><h3>Step-by-step explanation: </h3>

<u>Find the slope of the parallel line</u>

When two lines are parallel, they have the same slope.

⇒ if the slope of this line = - 8

then the slope of the parallel line (m) = - 8

<u>Determine the equation</u>

We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:

⇒ y - 11 = - 8 (x - (-1))

∴ y - 11 = - 8 (x + 1)

We can also write the equation in the slope-intercept form by making y the subject of the equation and expanding the bracket to simplify:

since y - 11 = - 8 (x + 1)

y = - 8 x + 3

The line from the question [ y = -8x + 3 ] passes through the point ( -1, 11 ).

5 0

2 years ago

ok so this is drag and drop so tell me which answer goes in each box the for the box o the left count that as the first box ty n

Ainat [17]

Answer:

$\Huge\boxed{z$

Step-by-step explanation:

Hello There!

Once again we need to isolate the variable using inverse operations

to get rid of the -8.2 we add 8.2 to each side

-8.2+8.2 cancels out

-9.7+8.2=-1.5

now we have

-1.2z>-1.5

now we wan to get rid of the -1.2

to do so we want to divide each side by -1.2

$\frac{-1.2z}{-1.2} =z\\\\\frac{-1.5}{-1.2} =1.25$

Remember we have to flip the inequality sign because we're dividing by a negative number

we're left with

z<1.25

7 0

3 years ago

Read 2 more answers

10.512×10^_3 write in proper scientific notation

IgorLugansk [536]

10512 is the answer since you just move the decimal place over to the right three times.

3 0

3 years ago

Read 2 more answers

A tennis coach took his team out for lunch and bought 8 hamburgers and 5 fries for $24. The players were still hungry so the coa

g100num [7]

The cost of 1 hamburger is $ 2.5 and cost of 1 fries is $ 0.8

<h3><u>Solution:</u></h3>

Let "f" be the cost of 1 fries

Let "h" be the cost of 1 hamburger

<em><u>Given that, tennis coach took his team out for lunch and bought 8 hamburgers and 5 fries for $24</u></em>

8 x cost of 1 hamburger + 5 x cost of 1 fries = 24

$8 \times h + 5 \times f = 24$

8h + 5f = 24 -------- eqn 1

<em><u>The players were still hungry so the coach bought six more hamburgers and two more fries for $16.60</u></em>

6 x cost of 1 hamburger + 2 x cost of 1 fries = 16.60

$6 \times h + 2 \times f = 16.60$

6h + 2f = 16.60 ------ eqn 2

<em><u>Let us solve eqn 1 and eqn 2</u></em>

Multiply eqn 1 by 2

16h + 10f = 48 ------ eqn 3

Multiply eqn 2 by 5

30h + 10f = 83 -------- eqn 4

<em><u>Subtract eqn 3 from eqn 4</u></em>

30h + 10f = 83

16h + 10f = 48

( - ) ----------------------

14h = 35

Substitute h = 2.5 in eqn 1

8(2.5) + 5f = 24

20 + 5f = 24

5f = 4

Thus cost of 1 hamburger is $ 2.5 and cost of 1 fries is $ 0.8

5 0

4 years ago