4(13-b)=6(2-0.5b)
52-4b=12-3b
-4b+3b=12-52
-b=-40
b=40
Answer:
Step-by-step explanation:
66.
rectangle or square (if sides are equal.)
67.
trapezoid
68
trapezoid.
69.
scalene quadrilateral.
a = 4 first term, r = ?, T10 = 100.
Tn = ar^n - 1 formula for g.p
T10 = 4r^ 10 - 1
100 = 4r^9
Divide both side by 4
100/4 = 4/4r^9
25 = r^9 take the 9th root of both side
9√25 = 9√r^9
r = 9√25
To find the nth term
Since Tn = ar^n - 1
The probability of flipping 1 head when flipping 3 coins is 3/8.
Hope I helped!