Answer: 2. please brainliest
Step-by-step explanation:
Answer:
No, they are not the same.
Step-by-step explanation:
Lets say the price is 100 dollars. Lets start with the 25 and then 10 percent off. Since its 25% off we need to multiple the 100 dollar price by .75.
100*.75=75
Now that we have the 75 dollar price, we need to take off the 10%. We need to multiply the current price of 75 by .9
75*.9=67.5
The price after these 2 discounts is $67.50
Now lets do the 35% off right away. Since is 35% off we need to multiple our right of 100 by .65.
100*.65=65
The price after the 35% off is $65
So no, they are not the same.
? = 2. Thats the only one i got that equals 8xy^2. Not sure if its right tho.
Answer:
Step-by-step explanation:
Given sin²∅ + sin∅ = 1, we are to find the value of sin²∅ + sin⁴∅. ... 2
From sin²∅ + sin∅. = 1; sin²∅ = 1 - sin∅. ... 3
Substitute equation 3 into 1
sin²∅ + sin⁴∅
= sin²∅ + (sin²∅)²
= (1 - sin∅)+( 1 - sin∅)²
open the parenthesis
= 1 - sin∅+ (1-2sin∅+ sin²∅)
= 1 - sin∅+ 1-2sin∅+ sin²∅
= 1+1-sin∅-2sin∅+sin²∅
= 2 - 3sin∅+sin²∅
Since sin²∅ = 1 - sin∅, the resulting equation becomes;
= 2 - 3sin∅+(1 - sin∅)
= 2 - 3sin∅+1-sin∅
= 3-4sin∅
