Answer:
true
Step-by-step explanation:
1/2 (sin(x+y)+sin(x-y))
= 1/2 (sin x cos Y + cos x sin y + sin x cos y - cos x sin y)
= 1/2 * 2 sin x cos y
= sin x cos y
The expression is true.
Answer: 71 coins
Step-by-step explanation:
First and foremost, we should note that:
12 months = 1 year
2 years = 12 × 2 = 24 months
Since she has 25 coins in her first month and adds 2 coins to her monthly collections, this means that she has 23 more months. This can be expressed as:
= 25 + 2x
where, x = number of months
= 25 + 2(23)
= 25 + 46
= 71 coins
She will have 71 coins after 2 years.
Is there a picture for me to look at?
Answer:
I would say the answer would be y=25x
Step-by-step explanation:
Y=35x as in you increase 35 every time you go up on the graph
Remember you can do anything to an equatino as long as you do it to both sides
add 6n to both sides
6n-5n=6n-6n-4
1n=0n-4
n=-4
