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attashe74 [19]
3 years ago
15

I write out all the whole numbers, starting from 1. If I wrote 1994 digits altogether, what was the last complete number I wrote

down?
Mathematics
1 answer:
Nataly_w [17]3 years ago
3 0

Answer:

You wrote the numbers from 1 to 9: 9 digits.

You wrote the numbers from 10 to 99: 90*2 = 180 digits.

You have written 189 digits.

Then you wrote another 1994 - 189 = 1805

All the numbers from 100 to 999 have 3 digits

So you wrote 1805/3 = 601 2/3

This means 601 full numbers and 2 digits from the 602. number.

So 100 + 601 - 1 = 700 was the last number you wrote.

Do you agree?


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What is the slope of the line that passes through (-4,6) and (-6,20)
san4es73 [151]

Answer:

<h2>The answer is - 7</h2>

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1}  \\

where

(x1 , y1) and (x2 , y2) are the points

So the slope is

m =  \frac{20 - 6}{ - 6 -  - 4}  =  \frac{14}{ - 6 + 4}  =  -  \frac{14}{2}  =  - 7 \\

We have the final answer as

<h3>- 7</h3>

Hope this helps you

6 0
3 years ago
I need this solve really fast.<br> Which sequences are geometric? Select three options.
Salsk061 [2.6K]

Answer:

I guess this is the answer

4 0
3 years ago
Simon flips 8 coins and lays them out in a straight line.
bixtya [17]

Answer:

a) 256

b) 1/256

Step-by-step explanation:

_ _ _ _ _ _ _ _

every position has two possibilities (head or tail)

So,

2×2×2×2×2×2×2×2 = 2⁸ = 256

b) all tails is one of the 256 possible outcomes, so the probability is 1/256

8 0
3 years ago
Ruby is visiting San Francisco. From her hotel she walks 2 blocks west and 3 blocks north to a coffee shop. Then she walks 7 blo
castortr0y [4]
The answer is 16 blocks away
7 0
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{2x+7y=-20<br> {x-3y=16<br> Solve for systems of equations
IRISSAK [1]

By solving the linear equations we get the final values of x = 4 & y = 4.

What is the linear equation?

A linear equation is an algebraic equation of the form y=mx + b, where m is the slope and b is the y-intercept, and only a constant and a first-order  term are included.

We have,

               2x + 7y = -20           ----------(i)

                x - 3y = 16               ----------(ii)

By multiplying equation (ii) with 2 we get,

               2x + 7y = -20 ---------(III)

               2x - 6y = 32 -----------(IV)

taking subtraction of equations (III) and (IV), we get

               y = 4

by putting value of y in equation (ii) we get,

               x = 4

Hence by solving the linear equations we get the values of x = 4 & y = 4.  

To learn more about SAS similarity theorem visit,

brainly.com/question/1884491

#SPJ13

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1 year ago
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