Hello,
since sin 30°=1/2 and cos 30°=√3/2
then
8(cos 30+i sin 30°)=8*(√3/2+i/2)=4√3+4i
Answer:
sara will have 215.00. Sara already had 7.00 saved. 208 + 7= 215.00
Elsa will 208 dollars
Step-by-step explanation:
52 weeks in a year.
52x4 = 208
Answer:
x = 48 ft
Step-by-step explanation:
Triangle DEF is similar to triangle XYZ
10 x 4 = 40 ft
so
12 x 4 = 48 ft
Answer
x = 48 ft
The area of square: s · s = s²
The area of rectangle: (s + 6) · s = s(s + 6)
So:
s² + s(s + 6) = 56
s² + s(s + 6) - 56 = 0
Answer D.
Here we have one large triangle with two smaller triangles drawn inside. The two smaller triangles are similar.
Thus, a/12 = 12/16, or a/12 = 3/4, or 4a=36, or a = 9.
Find b in the same way: b/20 = 9/12 (and so on).
