n = (180-133) + (180-142)
An ext. angle is equal to the sum of two opposite int. angles
n = 47 + 38
Add:
<u>n = 85</u>
<u>Option D</u>
QS = 11x - 57
since r is the midpoint, QR + RS = QS
Hello There!
<u><em>The number of adult tickets sold in the school play = 225</em></u>
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<u><em>Total Number Of Tickets = 505</em></u>
<u><em>Number Of Student Tickets = x + 55</em></u>
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Number of adult tickets sold can be represented by X
Number of student tickets = X + 55
X+X+55=505
2x+55=505
2x=505-55
2x=450
X=225
Answer:
<u>The exponential model is: Cost after n years = 400 * (1 + 0.02)ⁿ</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Cost of the TV set in 1999 = US$ 400
Annual increase rate = 2% = 0.02
2. Write an exponential model to represent this data.
Cost after n years = Cost in 1999 * (1 + r)ⁿ
where r = 0.02 and n = the number of years since 1999
Replacing with the real values for 2020, we have:
Cost after 21 years = 400 * (1 + 0.02)²¹
Cost after 21 years = 400 * 1.5157
Cost after 21 years = $ 606.28
The TV set costs $ 606.28 in 2020.
<u>The exponential model is: Cost after n years = 400 * (1 + 0.02)ⁿ</u>