Answer: the answer is -2
Step-by-step explanation: use slope formula
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There is no common factor between 15, 17 and 18 because 17 is prime.
15z² +17z - 18 =
d = 17² - 4.15.-18
d = 289 + 1080
d = 1369
z = (-17 +/- \/1369) : 2 * 15
z = (-17 + 37) : 30
z' = 20 : 30 = 2/3
z" = (-17 - 37) : 30
z" = -54 : 30 = -1.8
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Answer:
The expression represents the amount of money in the bank account after the increase is: x=1.158n.
Step-by-step explanation:
With the information provided, you can say that the amount of money in the bank after the increase would be equal to multiplying the amount at the beginning of the year for the result of adding up 1 plus the percentage of the increase, which would be:
x=n*(1+0.158)
x=n*1.158
x=1.158n, where:
x is the amount of money in the bank account after the increase
n is the amount of money at the beginning of the year
