Answer:
27
Step-by-step explanation:
note that tanx cotx = tanx × 
= 1
Given
tanx - cotx = 5 ( square both sides )
(tanx - cotx)² = 5² = 25 ← expand left side using FOIL
tan²x - 2tanxcotx + cot²x = 25
tan²x - 2 + cot²x = 25 ( add 2 to both sides )
tan²x + cot²x = 27
Answer:
i DON'T KNOW............
Step-by-step explanation:
Answer:
69 weeks
Step-by-step explanation:
Let the number of weeks be x.
The first tank holds 621 gallons is leaking at a rate of 4 gallons per week. This means that after x weeks, the amount of water in the tank is:
621 - 4x
The second tank holds 828 gallons is leaking at a rate of 7 gallons per week. This means that after x weeks, the amount of water in the tank is:
828 - 7x
After a certain amount of weeks, the amount of water in both tanks is the same. That means that:
621 - 4x = 828 - 7x
=> 7x - 4x = 828 - 621
3x = 207
x = 207 / 3 = 69
This means that the amount of water in the tank will be the same after 69 weeks.
Answer:
Here is you annswer can you please give brainlist
Step-by-step explanation:
Hi there!
a) 2.49*6=$14.94
b)147.90/8.5=17.4 so $17.4 is the hourly rate I believe.
c) 147.90+14.94=162.84 183.53-162.84=20.69
Hope this helps!
