Both x and y equal 2.
2•2=4 + 2•2=4
4+4=8
2+2=4
Answer: x = 0, and y = -2
Step-by-step explanation:
-5x + y = -2 .........(1)
-3x + 6y = -12 ......(2)
From equation (1)
-5x +y = -2 .........(1)
y = 5x - 2 .............(3)
Now substitute for y in equation (2)
-3x + 6 (5x -2 ) = -12
Make use of 6 to open the bracket ,we now have
-3x + 30x - 12 = -12
= 27x - 12 = -12
Collect the like terms
27x = -12 + 12
27x = 0
Divide through by 27 to get the value of x
x = 0/27
x = 0
To determine y, substitute for x in equation (3)
y = 5x - 2
y = 5(0) - 2
y = 0 - 2
y = -2
Check : Substitute for x and y in equation (1)
-5x + y = -2
-5(0) + (-2) = -2
0 -2 = -2
0 - 2 = -2
Answer:
x = 60
Step-by-step explanation:
Total degrees of all interior angles (the three angles inside the triangle) is always 180°
So u use 180/3 = 60 which is x
There are forty cases of insomnia to be used in the study. There are two variables, the therapy and the improvement of sleep. There are two categorical variables in the study.
<h3>What is a variable?</h3>
The term variable refers to something whose value changes. An experiment would always have to variables; the independent variable and the dependent variable. The dependent variable changes when the independent variable is changed.
In this experiment, there are forty cases of insomnia to be used in the study. There are two variables, the therapy and the improvement of sleep. There are two categorical variables in the study.
Learn more about variable:brainly.com/question/17344045
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Answer:
10=x
Step-by-step explanation:
Intersecting Chords Formula:(segment piece) x (segment piece) =
(segment piece) x (segment piece)
6*5 = 3*x
30 = 3x
Divide by 3
30/3 = 3x/3
10 =x
