What is 421906 rounded to the nearest hundred thousand

Answers

Answer 1
Answer:

Answer:

421906

is 421910 to the nearest hundred thousand


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The value of the Euler \phi function (\phi is the Greek letter phi) at the positive integer n is defined to be the number of positive integers less than or equal to n that are relativel prime to n, For example for n=14, we have {1, 3, 5, 9, 11, 13} are the positive integers less than or equal to 14 which are relatively prime to 14. Thus \phi (14) = 6.Find the following:\phi(9) = __________.\phi(15) = __________.\phi(75) =__________.

Answers

Answer:

\bf \phi (9)=5

\bf \phi (15)=8

\bf \phi (75)=40

Step-by-step explanation:

Positive integers relative primes to 9 which are less or equal than 9

{1,2,4,5,7}

so

\bf \phi (9)=5

Positive integers relative primes to 15 which are less or equal than 15

{1,2,4,7,8,11,13,14}

and

\bf \phi (15)=8

Positive integers relative primes to 75 which are less or equal than 75

{1,2,4,7,8,11,13,14,16,17,19,22,23,26,28,29,31,32,34,37,38,41,43,44,46,47,49,52,53,56,58,59,61,62,64,67,68,71,73,74}

and

\bf \phi (75)=40

Find the standard form of the equation
(-7,-13) and (7,-11)

Answers

Answer:

x-7y=84

x-7y-84=0

Step-by-step explanation:

y=mx+c

y=ax+b

ax+by=c or ax+by-c=0

m= 1/7

y=1/7x-12

x-7y=84

x-7y-84=0

I need help on this, all I need to know is how to find the missing angle, no answer just the equation. Thank you!

Answers

Answer:

How to Find a Missing angle in a triangle

Step-by-step explanation:

1st Make sure the sum adds up to 180 degrees add the two angles together and the subtract from 180  If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.

:) Hope this Helps

Answer:

X = 50

Step-by-step explanation:

The  sum of all angles in a triangle is 180 degrees:

So, 180 = 65 + 65 + X

180 = 130 + X

130 + X = 180

X = 180 - 130

X = 50 degrees

Hope it helps!

Help help please I dont know how to do this

Answers

Answer:

50

Step-by-step explanation:

Answer:

83

Step-by-step explanation:

78 + 124 + 75 = 277

360 - 277 = 83

What number should I multiply 1 1/4 by to get 7/12

Answers

Let's take our given information and transform it into numbers. We will let x equal the "mystery" number we need to find. Here is our equation:
1 (1)/(4) x= (7)/(12)
Now, all we need to do is convert the mixed fraction into an improper fraction:
(5)/(4) x= (7)/(12) 
Now, just multiply the reciprocal of 5/4 with 7/12, giving us:
x=(4)/(5)* (7)/(12)
Finally, just straight up multiply to get an answer of x = 28/60, which can be simplified down to x = 7/15. Therefore, the number you have to multiply 1 1/4 to get 7/12 is 7/15. Hope this helped!
1 and 1/4 is the same as 5/4 so essentially we are asking what do we multiple 5/4 by to get 7/12. Try to keep things as fractions initially to see if there is a fractional answer with whole numbers.

Let x represent the number:
x . 5/4 = 7/12
i.e. 5x/4 = 7/12
We want to get x on it's own so multiply both sides of equation by 4
5x = 4 . (7/12) = 28/12
now divide both sides by 5 to get x on its own
x = (28/12) / 5
This does not equate to a whole number fraction as 28 and 12 are not divisible by 5. So simply convert to decimal
x = 2.3333 / 5 = 0.46666



A freight train is traveling 30 miles per hour. An automobile starts out from the same place 1 hour later and overtakes the train in 3 hours. What was the rate of the automobile? Show the work...

Answers

i hope this helps you