The required zero places of the given equation y= x² + 5x + 6 is x = -2 and x = -3.
Given that,
An equation y= x² + 5x + 6,
To determine the Zeros of the equation given above.
<h3>What is the equation?</h3>
The equation is the relationship between variables and is represented as y =ax + b is an example of a polynomial equation.
Here, given equation is, y= x² + 5x + 6
Now, let y = 0
x² + 5x + 6 = 0
x² + 2x + 3x + 6 = 0
x(x + 2) + 3 (x + 2) = 0
(x + 2) * (x + 3) = 0
x + 2 = 0 ; x + 3 = 0
x = -2 and x = -3
Thus, the required zero places of the given equation y= x² + 5x + 6 is x = -2 and x = -3.
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Using a^2+b^2=c^2
7^2 +7^2=c^2
49+49= c^2
c^2= 98
c= the square root of 98
Answer:
2
Step-by-step explanation: 1 1/3= 1.3 reapeating 1 1/2= 1.5 1.3x1.5= 2
Answer:
Test statistic is -1.8975
The mean number of days until a home is sold is not different than the Hamilton county mean of 86 days in the nearby county.
Step-by-step explanation:
Null hypothesis: The mean number of days until a home is sold in the nearby county is the same as Hamilton county.
Alternate hypothesis: The mean number of days until a home is sold in the nearby county is different from Hamilton county.
Z = (sample mean - population mean) ÷ sd/√n
sample mean = 80 days
population mean = 86 days
sd = 20 days
n = 40
Z = (80 - 86) ÷ 20/√40 = -6 ÷ 3.162 = -1.8975
Assuming a 0.05 significance level, the critical value for a two-tailed test lies between -1.96 and 1.96
Conclusion: Since the test statistic -1.8975 falls within the region bounded by -1.96 and 1.96, fail to reject the null hypothesis
