Answer:
;-;
Step-by-step explanation:
I can't see nothing see nothing
In this you could say 2.5L and 3.5L for total 6L. minus the 5L drunk and get about a liter left. in actuality:
x = 2.45 + 3.65 - 4.85 = 1.25
I would say that the estimation was reasonable.
in probability, it is equally as likely that a decimal lies between x and x.5 as it is for it to lie between x.5 and x+1. therefore when given a few numbers the rounding effect would likely round overall the same amount of points down as up. this would make it likely that the estimation would have on my an error within the amount rounded to. as you can see I rounded to 0.5 and the answer was half that
Answer:
40
Step-by-step explanation:
In the triangle, there is a 90 degree angle and Angle 1 (what we are looking for) and the other angle, lets call is Angle 2.
Lets find Angle 2 first.
First of all, the angle between angle 40 and 90 can be found easily.
That angle (lets call it "x) and 40 and 90 make a straight angle (180 degrees). So we can write:
40 + x + 90 = 180
Lets solve for "x":
40 + x + 90 = 180
130 + x = 180
x = 180 - 130
x = 50
Now, This angle (50) and Angle 2 are same [vertical angles]
So,
Angle 2 = 50
Now, there are 180 degrees in 3 angles in a triangle. So for the triangle shown, we cacn write:
90 + Angle 1 + Angle 2 = 180
90 + Angle 1 + 50 = 180
Angle 1 + 140 = 180
Angle 1 = 180 - 140
<u>Angle 1 = 40</u>
I think is true
Please let me know if it right