Answer:


Step-by-step explanation:
the ratio of sides of a 30-60-90° triangle, respectively, are 1 :
: 2
we can solve for 'x' using this proportion:
x/4 = 1/
now cross-multiply:
x = 4
x = 4/
we don't want to leave a radical in the denominator so we can multiply numerator and denominator by
to get:
4
/ 3 or 

Answer:
To solve this I would multiply both sides by 3
Step-by-step explanation:
i would use the multiplication property of equality
Area = (1/2)(base)(height)
48 = (1/2)(12+12)(height)
48 = (1/2)(24)(h)
48 = 12h
h = 48/12
h = 4 units
Letter B
x^2+14x = (x+7)^2
7^2 = 49
so you would add 49 to both sides