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Sonja [21]
3 years ago
5

Explain one way to add a 3-digit number

Mathematics
1 answer:
IrinaK [193]3 years ago
8 0

Line them all up by 100th, 10ths and Ones Place! Hope that this helps you

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A rectangle's area is given by the expression 6n2-n+
Zolol [24]

Answer:

Length of rectangle:    2n - (1/3)  + 9/(3n)

Width of rectangle =  3n

Rectangle area  = A = 6 n^2  - n + 9

Step-by-step explanation:

Rectangle area  = A = 6 n^2  - n + 9

test what the roots are:    b^2 - 4ac  = (-1)^2 - 4*6*9 < 0  no real roots

-215 < 0  discriminant

(6 n^2  - n + 9)  / (3n) =

2n  -  (1/3)  +  9/(3n)

If the area is divided by 3n,  the quotient is  2n - (1/3) and the remainder is 9

8 0
3 years ago
HELP I DONT KNOW THESE :(
Leya [2.2K]
The answer is -1 and 2
5 0
3 years ago
sally can paint a room in 7 hours while it taks steve 9hours to finsh the same room. how ling will it take them to paint if they
Nata [24]
How much part can sally paint in an hour ?
a ÷ 7 = a/7

And what about Steve ?
a ÷ 9 = a/9

Where, a is the total area of the room.

So, let the time taken by both of them to paint the room together be 't'

So,
t(a/7 + a/9) = a
t(9a/63 + 7a/63) = a
t(16a/63) = a
t = 63/16 ≈ 4 hr
6 0
3 years ago
Read 2 more answers
A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first of the 64 squares of a chess
Ivahew [28]

Answer:

1. 65536

2. 458752000

Step-by-step explanation:

2 to the power of 16 is 65536

458752000=65536*7000

8 0
3 years ago
4x+y=10 solve the missing value
nalin [4]

Answer:

2

Step-by-step explanation:

4x + y = 10 \\ 4(2) + 2 = 10

8 0
3 years ago
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