Answer: y= -17
Step-by-step explanation:
y= 1 - 2x
so when x=9,
y= 1 - 2(9)=1 - 18= -17
3(x-7)=6(x-10)
3x-21=6x-60
3x-21+21=6x-60+21
3x=6x-39
3x-6x=6x-39-6x
-3x=-39
-3x/-3=-39/-3
x=13
Answer:
12?
Step-by-step explanation:
Answer:
<h2>1 </h2>
Step-by-step explanation:
A data arranged in descending order is a data arranged from the biggest to the smallest. The medisn of the data sets is the value at the middle of the dataset after rearrangment.
For the dataset {8, x, 4,1}, the median will be x and 4. Since we have two median values, we will take their average as shown
Median(1) =
... 1
Simialrly for dataset {9, y, 5,2}, the median will be y and 5.
Median(2) =
...2
Since the medians of the two given datasets are equal, we will equate equation 1 and 2 and calculate for y-x as shown;


Therefore y-x = -1
(y-x)² = (-1)²
= 1