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
Answer:
1) $0.18 - rounded
$0.18125 - original answer
2) $2.70
Step-by-step explanation:
For first equation:
1. Divide $1.45 by 8.
2. Get $0.18125
3. Round to $0.18
For second equation:
1. Multiply the amount of bananas (15) by how much they are ($0.18)
15 X $0.18 = $2.7
2. Get answer: You pay $2.70 for 15 bananas.
Answer: 0.3000
Step-by-step explanation:
Answer:
(4,3)
Step-by-step explanation:
i looked it up on mathaway
Answer:
G-$3000, L- $1200, M- $1800
Step-by-step explanation:
Georgia= 5/10 * 6000= $3000
Leanee= 2/10 * 6000= $1200
Maya= 3/10 * 6000= $1800
