Answer:
Negative slope, negative correlation
Step-by-step explanation:
The line is described in the attachment. There is a negative correlation, as y reports a negative change whereas x has a positive change. The line has negative slope.
Answer:
1. x = no solution
y = no solution
2. x= 3
y = -4
Step-by-step explanation:
y = 5 - x
2x + 2y = 6
Divide the equation by 2.
x + y = 3
x + (5 - x) = 3
x + 5 -x = 3
x-x + 5 =3
5 =3 ⇒⇒⇒ This is not true. So, we can say that the simultaneous equation don't have a solution.
-7x - 2y = -13
x - 2y = 11
x = 11 + 2y
-7(11 + 2y) - 2y = -13
-77 - 14y - 2y = -13
-16y = 64
y = -4
x = 11 + 2(-4)
= 11 - 8 = 3
Answer:
B, Work with the math instructors to create a list of students currently taking a math class. Randomly select
Step-by-step explanation:
Let's think of each scenario at a time.
(A) We select 100 students enrolled in college randomly that should be fine because we are taking only students that can take classes. this rules out faculty members and any other persons but also there may be students that will never take any math course as part of their study plan, this is ruled out on that basis.
(B)if we take 100 students from the list of math instructor, that will ensure that we have taken students that are taking math class now, and math is part of their study plan, seems fine.
(C) visiting cafeteria randomly on multiple days will give us random persons that may not even be enrolled in university. this can be ruled out on that basis.
(D)Ten class at random and surveying each student in every class will make sampling size large or small depending on students enrolled in each of the class this will not give us reliable results.
We can conclude that (B) is the beast method for obtaining reliable results.
Triangle ABC would remain the same because a dilation generally preserves the measure of an angle.
<h3>What is scale factor?</h3>
A scale factor simply refers to a ratio of two (2) corresponding side lengths or diameter in two (2) similar geometric figures such as triangles.
In this exercise, you're required to construct a dilation of triangle ABC that is centered at B with a scale factor of 2 by using a compass and straightedge.
In conclusion, triangle ABC would remain the same because a dilation generally preserves the measure of an angle.
Read more on scale factor here: brainly.com/question/2826496
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Answer:
1747.8
Step-by-step explanation:
V=pi*r^2*h
V = 3.14*(12.1)^2*3.8
=1747.8