Answer:
(x+5)⋅(x+4)= x2+9x+20
Step-by-step explanation:
(x+5)(x+4)
=x
2
+4x+5x+20=
=x
2
+9x+20
-39/100 is the answer according to me ..
Plz mark me as brainliest if u found it helpful
Before outlier : 7.25
After outlier : 4
7.25 - 4 = 3.25
So the mean decreases by 3.25 when the outlier is removed.
Answer:
The y-intercept represents the price of the computer last Monday.
Step-by-step explanation:
The y-intercept is the point on a graph where x equals zero. Also, the y-intercept is the output value in an equation when x equals zero.
In this situation, x represents the number of days since last Monday. So, when x equals zero, no time has passed.
Therefore, the y-intercept represents the price of the computer last Monday.
Using the equation of the circle, it is found that since it reaches an identity, the point (√5, 12) is on the circle.
<h3>What is the equation of a circle?</h3>
The equation of a circle of center
and radius r is given by:

In this problem, the circle is centered at the origin, hence
.
The circle contains the point (-13,0), hence the radius is found as follows:



Hence the equation is:

Then, we test if point (√5, 12) is on the circle:


25 + 144 = 169
Which is an identity, hence point (√5, 12) is on the circle.
More can be learned about the equation of a circle at brainly.com/question/24307696
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