Answer: Discounted function will be

Step-by-step explanation:
Since we have given that
Initial cost of solar energy = $9000
Average annual cost of heating a home with solar energy = $200
Rate of discount he received on the total cost = 25%
Let the number of year will be t
According to question, we need to write a discounted cost as a function of number of years.
So, our function becomes,

Hence, discounted function will be

Answer:
Step-by-step explanation:
0.75/(3*10^(-7)) = 0.25*10^7 = 2.5*10^6
Answer:they win 12 more matches in the second year
Step-by-step explanation:
Each year, the team plays a total of 120 matches. In its first year the team wins 45% of its matches. This means that the total number of matches that the team won in the first year is
45/100/× 120 = 54
The 2nd year ,the team wins 55% out of 120 matches. This means that the total number of matches that the team won in the second year is
55/100/× 120 = 66
Number of matches for the second year - number of matches for the first leg is 66 - 54 = 12
Answer:
55°
Step-by-step explanation:
All triangles have a sum of 180°
180 - (35 + 90) = angle B
180 - (125) = angle B
55 = angle B
So, angle B has a measurement of 55°