Answer:
The area of the room and its uncertainty in square meters is:
15.642±0.040 
Step-by-step explanation:
We know the area of a rectangular room is the multiplication of the length and width:
Now we need to know the uncertainty, the uncertainty of a multiplication is:
(1)
: Area uncertainty
: Length uncertainty
: Width uncertainty
A: Area of the room
L: Length
W: Width
Clearing the uncertainty of the area:
(2)
The area of the room and its uncertainty in square meters is:
15.642±0.040
1,000. 4,200 / 21 = 200. 5 * 200 = 1,000
If you factor 4x²-12x, you can divide 4x from each term.
4x² ÷ 4x = x
-12x ÷ 4x = -3
Therefore, the other term becomes (x-3) because 4x(x-3) = 4x²-12x
12.36% I think sorry if its wrong ;-;
Answer:
$6.50
Step-by-step explanation:
If she bought 4 blow pops for $2.00, each blow pop is $0.50.
You then multiply the cost for each blow pop ($0.50) by the number of blow pops she will buy (13).
