Step-by-step explanation:
multiple possibilities.
e.g.
we could use Pythagoras to get QR, and then use the law of sine to get angle P.
or we can use the law of sine to get angle R, and then use the rule that the sum of all angles in a triangle is always 180° to get angle P.
I propose the second option :
the law of sine :
a/sin(A) = b/sin(B) = c/sin(C)
with a, b, c being the sides always opposite of their associated angles.
33.8/sin(R) = 57.6/sin(90) = 57.6
sin(R) = 33.8/57.6 = 0.586805555...
R = 35.93064691...°
180 = 90 + 35.93064691... + P
P = 54.06935309...°
8x4=32
32+40=72
72/2=36
36+6=42
The number is 42
To do this simply see how many times 10 can go into 124.
It can go in 12 times right?
12 is your whole number.
The four is still left and it is going to stay there. So right now you have:
12 and 4/10
4/10 can be simplified by dividing it by 2.
This leaves you with 2/5
Your answer is 12 and 2/5
-2. All you’re doing is going from the number you start with and performing the opperations in the order they appear (-4+3-2+6-5=-2)
