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The number of multiples of 19 < 775  =  775 / 19  =  40

And their sum  =   19 (40)(41)/2  = 15580

The number of multiples of 5 < 775  =  770 / 5 =   154

And their sum  =  5 (154)(155) / 2  =  59675

However....we must subtract out the sum of all numbers divisible by both 5 and 19.......this will equal all the multiples  of 19 * 5  = 95.......so  775/95  =  8

So...the sum of these  = 95 (8) (9)/2  =  3420

So...the total sum of all multiples of 5 or 16 less than 775  =  [ 15580 + 59675 - 3420 ]  = 71835

tHANK YA

distance between (4, 2) and (-9, -2)   =   AB

From the Pythagorean theorem:   (green line)² + (purple line)²   =   AB²

(4 - -9)²  +  (2 - -2)²   =   AB²

13²  +  4²   =   AB²

\(\sqrt{185}\)   =   AB

13.60   ≈   AB

30% means = 30 /100 =0.30, then you multiply this by the price of the skateboard:

0.30 x $150 =$45 - the amount you saved on the skateboard.

3% means: 3/100 = 0.03, then you multiply this by the price of the house:

0.03 x $200,000 =$6,000 commission on the house.

1. frequency

5.  b is correct

7 c is correct

8. symmetric

11.  b is correct

13. b is correct

18. 

Total customers between  8:00  and 11:59  =  [  5 + 12 ]   = 17  (1)

Total customers  =  [ 5 + 12 + 22 + 7 + 18 ]   =  64 =  (2)

% between  8:00 and 11:59  =  (1) / (2)   =   `17 /64  = 27%  (rounded)

All things being equal, the car with the larger diameter tires should last longer.

For example  a car with a tire diameter of 20 inches will make  about   (5280 * 12) / (20 pi)  = 1008 revolutions per mile

A car with a tire diameter of 25 inches will make  about     (5280 * 12) / (25 pi)  =  807 revolutions per mile

Thus....the larger tire is getting less wear and tear per the same distance traveled as the smaller tire.....assuming the same width, the larger tire gets about  807 / 1008  =  80% of the wear of the smaller tire......

pls let me copy yours juan

a numerical quantity that is not a whole number (e.g., 1/2, 0.5).

the answer is 9 + 60

pi = 3.14

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the meaning of life:                                                             reproduction

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0.181818181818181818181818181818181818181818181818181818............

$1.00 - $0.68

= $0.32

Therefore, the cashier will give Hana back $0.32 or 32 cents.

The square root of 6/25 = 0.4898979485566356.

It really depends on the type of truck and how it's operated.

0 divided by 0 equals 0. For example, if you have 0 items and you want to divide 0 items from it, you can't really do anything because you have 0 items.

Why not?

Hectictar's surmise that     n * sin (180 /n) approaches "pi" as n approaches infinity is exactly correct...see the graph here :

https://www.desmos.com/calculator/7pjtxl5jl1

I've used "x" instead of "n" but the idea is the same

So...putting this fact together with the answer she gave in part C, the perimeter of an n-gon for some large value of n  approaches   2 * r * [ pi ]  =    2 *pi*r  =  the circumference of a circle with a given radius of "r"