Answer:
cos(400)
Step-by-step explanation:
Useful things:
Cofunction identity: sin(x)=cos(90-x)
Sine and cosine have period of 360 degrees.
So sin(50)=cos(40) by cofunction identity.
Since cosine has period of 360 degrees then cos(40)=cos(360+40).
That simplifies to cos(400).
Answer: A. 4.79(n)=20.00
Step-by-step explanation:
we need to find what amount of coffee (per pound) is equivalent to $20.00
so we take the unknown amount (n) and multiply it by $4.79
for example, say Ken wants 4 pounds, we need to know if it is equivalent to $20.00
so take 4.79 and multiply it by 4 to see if it is equal to or less than $20.00 in this case $4.79 x 4 = $19.16
hope this helps (^_^)
Answer:
250 Students are musicians, 200 are not.
Step-by-step explanation:
Decimal Version:
If we take "5 out of every nine students are musicians" and make this a fraction we get 5/9. 5/9 as a decimal is approximately 55.555555555556. 55.555555555556% of 450 = 250. So that means 250 students are musicians.
Fraction Version : See attached image.
Answer:
English translate for my help please??!
Step-by-step explanation:
