Answer:
∠ 2 = 60°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Subtract the sum of the given angles fro 180° for ∠ 2, that is
∠ 2 = 180° - (57 + 63)° = 180° - 120° = 60°
Answer: t= 460.52 minutes
Step-by-step explanation:Q'=Q/100
Q'= rate in and out of water
Finding the differential equation
Let Q'(t)= The quantity of dye in the tank for t time
But rate in=0 Q/200 ×2=Q'
Q'/Q=-1/100
Dividing by Q gives
Ln/Q/ + c = -1/100 + c1
Integrating both sides gives
Ln/Q/ = -(1/100)t + c2
But c+c1=C2= A constant
Q=C2e(-t/100)
200e-(t/100)
t= ln200
t=460.52minutes
Answer:
B
Step-by-step explanation:
Damage to car = $2,500
Deductible to be paid = $500
As he has to pay the deductible of $500 When he will pay this deductible then insurance company will cover up everything. So the insurance company will cover up $2500 damage to his car he just has to pay the deductible.
Simple interest = $38.4
Solutions
Simple interest, I = principal x rate x time
Principal = $640
Time = 2 years
Rate = 3% = 3/100 = 0.03
Remember, always divide your rate in percent by 100.
Don't forget to read the question and approximate correctly.
I can't answer this man.. Theres no math problems
