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3 years ago

A number is shown in expanded form.

Mathematics

2 answers:

Nana76 [90]3 years ago

4 0

20,809,204 is the answer because 20,000,000+800,000+9,000+200+4

Margarita [4]3 years ago

4 0

Answer:

2,809,204

Step-by-step explanation:

2*1,000,000 = 2,000,000

8*100,000 = 800,000

9*1,000 = 9,000

2*100 = 200

4*1 = 4

2,809,204

If the third equation isn't 9*1,000 let me know.

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This morning, the temperature rose 2 degrees in 2/3 of an hour at what rate did the temperature rise per hour

insens350 [35]

Answer:

3 degrees per hour

Step-by-step explanation:

2 degrees in 2/3 of an hour

2/2 = 1

1 degree in 1/3 of an hour

1*3 = 3

3 degrees in 1 hour

5 0

3 years ago

I NEED HELP!!! PLEASE HELP!!! FIRST TO ANSWER GETS 50 POINTS AND BRAINLIEST ANSWER!!! HEEELLPPPP!!!! Find the distance between p

daser333 [38]

Answer:

8.6 to the nearest tenth.

Step-by-step explanation:

Using the distance formula d = √ [(y2 - y1)^2 + (x2 - x1)^2] where (x1, y1) and (x2, y2) are the two endpoints.

= √ (4 - -3)^2 + (-3-2)^2

= √(49 + 25)

= 8.60

6 0

3 years ago

Please help thanks!!!

lora16 [44]

$probablity \: of \: \: six = 29 : 150$

<h2>hope it helps you ❣❣ </h2>

<h2>Mark me as brainliest</h2>

in fraction=29/150

3 0

3 years ago

Solve for the value of z: 14/5 = z/24 ____?

natka813 [3]

Answer:

Step-by-step explanation:

Cross multiplying

5z =14*24

5z = 336

Divide by 5

z = 336/5

Or mixed fraction z= 67(1/5)

Decimal z= 67.2

3 0

2 years ago

Read 2 more answers

Write the sum using summation notation, assuming the suggested pattern continues. -9 - 4 + 1 + 6 + ... + 66

Ipatiy [6.2K]

Answer:

Summation notation is:

$\sum_{n=1}^{16}[5(x-1)-9]$

If you prefer it a little more simplified:

$\sum_{n=1}^{16}(5x-14)$

Step-by-step explanation:

First my favorite part, finding a pattern between the consecutive terms.

This is an arithmetic series because the terms are going up by 5 each time.

So arithmetic sequence, think linear equations:

x | y

1 -9

2 -4

3 1

4 6

..................

n 66

We are going to have to find that n but will will eventually...

The equation for a line in point slope form is $y-y_1=m(x_x_1)$ where $(x_1,y_1)$ is a point on the line and m is the slope.

We are already have the slope is 5 (the slope is the common difference in arithmetic sequence).

I'm going to use the first point (1,-9).

So the equation in point slope form is $y-(-9)=5(x-1)$

Subtract 9 on both sides:

$y=5(x-1)-9$

Now we need to know how many terms we are adding so what is x if y=66.

$66=5(x-1)-9$

Add 9 on both sides:

$75=5(x-1)$

Divide both sides by 5:

$15=x-1$

Add 1 on both sides:

$16=x$

We have 16 terms in this sequence where the 16th term is 66.

Summation notation is:

$\sum_{n=1}^{16}[5(x-1)-9]$

You could simplify the 5(x-1)-9.

Distribute: 5x-5-9

Add like terms: 5x-14

3 0

3 years ago

Read 2 more answers