Answer:
(cos a cos b - sin a sin b)
Step-by-step explanation:
It's easy
390625
^if that’s what you meant in the picture cause your question was confusing
Answer:
y = 25 + 40x
Step-by-step explanation:
Let
y = the total amount of money Justin has
x = number of weeks
Amount Justin has in the bank = $25
Amount Justin earns per week = $40
Equation for how much money Justin has (including the amount he has in the bank) in x weeks
the total amount of money Justin has = Amount Justin has in the bank + (Amount Justin earns per week * number of weeks)
y = 25 + (40 * x)
y = 25 + 40x
The equation is
y = 25 + 40x
87.2 - 25.9 = 87.2 - 26 = 61.2 + 0.1 = 61.3
