Answer:H2+Br2-->2HBr
Step-by-step explanation:
The amount of atoms on the left side must be equal to the amount of atoms on the right side for each element.
On the left you got 2xH and 2xBr.
This means you must have the same amount on the right.
2HBr =2xH + 2xBr
Answer:
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Step-by-step explanation:
a. 
50 x 9 = 450. A=450
b. I can scale the unit rate of the area given above and largen the area of the map. Ex. 
=
<---(scaled by 2)
Then we can enlarge it however we want so,
= 
<--(scaled by 2 once more)
If the statement above is true then we can scale times 4.
= 
<---(scaled by 4)
A= 
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Answer:
There is no following, we have data of all the people
Step-by-step explanation:
There where Sixty-five salespersons asked and the if we add all the persons that where asked it is the same. So there is no following
Fourteen people answered that they generally sell two cars; 14
nineteen generally sell three cars; 19
twelve generally sell four cars; 12
nine generally sell five cars; 9
eleven generally sell six cars 11
Adding 14+19+12+9+11=65 persons
The ordered pairs are (1,-1) (1,-2) (2,-3) (2,-4).
This is not a function because in order to be a function, every x value needs to have one and only one y value. You can see here that the x values have two y values, so it is not a function.
Answer:
(21, 2 )
Step-by-step explanation:
Given the 2 equations
y = - 
x + 9 → (1)
y = 
x - 12 → (2)
Substitute (2) into (1)
x - 12 = - x + 9 ( add x to both sides )
x - 12 = 9 ( add 12 to both sides )
x = 21
Substitute x = 21 into either of the 2 equations and evaluate for y
Substituting into (2)
y = × 21 - 12 = 14 - 12 = 2
Solution is (21, 2 )
