Answer:
1=90%
Step-by-step explanation:
20-2=18, 18/20=90%
25 is the answer hope it helped
Answer:
(2*n)+9=n-30
Step-by-step explanation:
I'm not sure but I think that is the equation
Answer:
Step-by-step explanation:
So you can use the special formula for 30-60-90 triangle or you can use the whole Soh Cah Toa thing.
I honestly prefer trig. so a is the opposite side of the 30 deg and 12 is the hyp. This should scream sine to you since sine goes with opposite/hypotenuse.
sin(30 deg)=a/12
Multiply both sides by 12
giving a=12 sin(30)
Type into calculator unless you know your unit circle well.
a=6
Answer:
2.1 + 2x = 7.5
Step-by-step explanation:
