What are the next 3 terms in the sequence 3,6,9,12?
2 answers:
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Area inside the semi-circle and outside the triangle is (91.125π - 120) in²
Solution:
Base of the triangle = 10 in
Height of the triangle = 24 in
Area of the triangle =
Area of the triangle = 120 in²
Using Pythagoras theorem,
Taking square root on both sides, we get
Hypotenuse = 23 inch = diameter
Radius = 23 ÷ 2 = 11.5 in
Area of the semi-circle =
Area of the semi-circle = 91.125π in²
Area of the shaded portion = (91.125π - 120) in²
Area inside the semi-circle and outside the triangle is (91.125π - 120) in².
Answer:
(a) 85,602,300
(b) 352,621,800
Step-by-step explanation:
(a) In 1998, <em>x</em> = 1998 - 1985 = 13
The number of subscribers in 1998 = 85602.3 × 1000 = 85,602,300
(b) In 2009, <em>x</em> = 2009 - 1985 = 24
The expected number of subscribers in 2009 = 352621.8 × 1000 = 352,621,800