Answer:
D is the correct answer
Step-by-step explanation:
Fifth row of Pascal pyramid is 1 , 5, 10, 10, 5 , 1
The expansion should always have n + 1 number of terms
Where n is the power
It would cost him $424.50
Explanation:
Let h = # of hours and y = # of life jackets
Cost = 25 + 5.50h + 6y
Cost = 25 + 5.50 (3) + 6(2)
Cost = $424.50
$1675 at 4.6% for 4 years
<span>Interst of P = $1675 at R = 4.6% for T = 4 years = P x R x T = $1675 x 4.6% x 4 = $308.20
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Hope this helps:D
Answer:
cos 2 x=1-sin^2 x
Step-by-step explanation:
x=-135°
cos 2x=cos (-270)=cos (-270+360)=cos 90=0
or cos 2x=1-2sin ²x=1-2(sin (-135))²
=1-2(-sin 135)²
=1-2(sin 135)²
=1-2(sin (180-45))²
=1-2(sin²45)
=1-2 (\frac{1}{\sqrt{2}})²
=1-1
=0
