Answer:
Step-by-step explanation:
Sin(30) / X = Sin(45) / 12
use algebra to isolate X
1 / X = [ Sin(45) / 12 ] / Sin(30)
flip both sides
X = Sin(30) / [Sin(45) /12 ]
invert the denominator on the right side
X = Sin(30) * 12/ Sin(45)
Do you know what Sin(30) is off the top of your head?
and also Sin(45) ?
these are worth remembering... and you can b/c they are just
sin(0) = 0/2
sin(30) = 1 / 2
sin(45) = 
/2
sin(60)= 
/ 2
sin(90) = 
/ 2 (aka 1)
note the numerators just counts up 0, 1, 2, 3, 4 :)
Cos works the same way but counts from 90° back to 0 but exactly like sin other wise, hence why Cos and Sin both = /2 at 45 °
anyway
X = 1 / 2 * 12/ /2
X = 3
A=3
B= 2
:) nice , huh
Answer:
9:50
Step-by-step explanation:
To get the ratio, we can just simplify a fraction down to 1.
Since there's 18 dimes, and 100 coins in total, we'll start with the fraction
18/100
Put 18/100 in simplest form
9/50
Then Turn the fraction into a ratio
9/50 -> 9:50
For every 9 dimes there's 50 coins.
I hope this helped.
(Simplified to 1, is 1/5.56 or 1:5.56)
Answer:
17 units
Step-by-step explanation:
Distance between points 
is given by 
The trail starts at P(−2, 2) and goes to Q(5, 2).
Take 
units
It goes from Q to R(5, −5)
Take 
units
It goes from R to S.
Take 
units
units
Answer:
Step-by-step explanation:
To turn 63% into a fraction, write it as a fraction over 100, then simplify it:
I am joyous to assist you at any time.
Answer:
27=n+7
-7 -7
20=n
Step-by-step explanation:
