X^2 + 10x + 11 = 0
x^2 + 10x = -11
x^2 + 10x + 25 = -11 + 25
(x + 5)^2 = 14 <===
x + 5 = (+-) sqrt 14
x = -5 (+-) 3.74
x = -5 + 3.74 = -1.26 <== solution
x = -5 - 3.74 = - 8.74 <== solution
<u>Answer:</u>
A) Scalene E) Obtuse
<u>Detailed Explanation:</u>
A) Scalene
This triangle would be classified as scalene because none of the angles are equal.
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E) Obtuse
This triangle would be classified as an scalene triangle because one of the angles is larger than 90 degrees.
Find the mean and median for this set. 6, 7, 7, 8, 8, 8, 8, 8, 8.5, 9, 9, 9, 9, 9.5, 10, 10.
julsineya [31]
Mean: 8.375
Median: 8.25
To find mean you must add up the numbers. Then divide the total and the total numbers there are.
The statistical concept of the median is a value that divides a data sample, population, or probability distribution into two halves. Finding the median essentially involves finding the value in a data sample that has a physical location between the rest of the numbers.
Answer:
x=-1/3, y=-13/3. (-1/3, -13/3).
Step-by-step explanation:
y=x-4
4x-y=3
------------
4x-(x-4)=3
4x-x+4=3
3x+4=3
3x=3-4
3x=-1
x=-1/3
y=-1/3-4
y=-1/3-12/3=-13/3
Answer:
B. (3,0)(0 ,-6)
Step-by-step explanation:
What is intercept.?
Intercept are those points where a given line cuts across a given axis.
So for the equation y = 2x - 6
To find the intercept we will bear in mind that we are looking for two points.
The point where the line cuts both the x axis and the y axis .
And to determine that, we will set both x and y to be equal to zero and then solve for both.
So let x = 0
Y = 2x -6
Y = 2(0) -6
Y = -6
One point = (0 ,-6)
Let y = 0
Y = 2x -6
0 = 2x -6
6 = 2x
X = 3
One point = (3,0)
The two points are
(3,0)(0 ,-6)
