Answer:
486, 486r,486r^2,486r^3,486r^4,2
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2 = 486r^5
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r^5= 1/243
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r = 1/3
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Ans: 486*(1/3),486*(1/9),486(1/27),486(1/81)
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Step-by-step explanation:
150,000
100,000 < 150,000 < 200,000
Answer:
(d). 
Step-by-step explanation:
sin² β + cos² β = 1
cos (α + β) = cos α cos β - sin α sin β
cos α = √(1 - 
) = 21 / 29
cos β = 12 / 13
sin β = √(1 - 
) = 5 / 13
sin α = 20 / 29
cos (α + β) = 
× 
- 
× 
=
Simplify 140/96 into 35/24 since they have the common factor 4. Then convert it to 1 whole and 11/24
