Answer:
all of the above
Step-by-step explanation:
according to your question
substitute the values from the quadratic formula.
a= 3
b= -5
c= -3
simplify the numerator
5±√61/2 times 3
Multiply 2 by 3
<h2><em>
ANSWER:5±√61/6</em></h2>
Answer:
The degrees of freedom are:
The confidence level is 0.95 or 95%, the significance would be and , the critical value for this case would be
And replacing we got:
Step-by-step explanation:
Information given
In order to calculate the mean and the sample deviation we can use the following formulas:
(2)
(3)
represent the sample mean
population mean
s=9.956 represent the sample standard deviation
n=10 represent the sample size
Confidence interval
The confidence interval for the mean is given by the following formula:
(1)
The degrees of freedom are:
The confidence level is 0.95 or 95%, the significance would be and , the critical value for this case would be
And replacing we got:
You can check whether this is true using Pythagoras' Theorem. The Pythagorean Theorem:
a² + b² = c², where c is the hypotenuse of a right triangle.
Let's plug in the given values and check the validity of the statement.
a² + b² = c²
7² + 9² = 11²
49 + 81 = 121
130 = 121
This is false. Thus,
Answer:
False - a triangle with side lengths 7, 9, and 11 is not a right triangle.
From -∞ to -4 the blue line is above the X axis which means it is >0
The blue line is negative between -4 and -3
This would make the correct answer: F(x) > 0 over the interval (-∞,-4)