Answer:
No solutions
Step-by-step explanation:
4x + 2y = 2
2x + y = 4
we need to evaluate for y is "2x + y = 4" to be able to solve this.
2x + y = 4
2x - 2x + y = 4 - 2x
y = -2x + 4
4x + 2y = 2
4x + 2(-2x + 4) = 2
4x -4x + 8 = 2
8 = 2
NO solutions
It is similar because it gives you the equation to do to solve it but its different because you don't solve it <span />
Answer:
Mean = 11.8
Median = 11
Step-by-step explanation:
Here we are asked to calculate the median and the mean for these set of numbers
Let’s start with the mean
The mean refers to the average, we simply add all the numbers together and divide by their count.
That would be;
Arithmetic mean = (10+ 5 + 18 + 9 + 17 + 12)/6 = 71/6 = 11.833 which is 11.8 to the nearest tenth
To get the median, what we do is to first rearrange the values we have from the lower to the highest.
That would be;
5,9,10,12,,17,18
Looking at the numbers after rearranging, the two middle numbers we have are 10 and 12.
So we add these together divide by 2.
That would be (10+12)/2 = 22/2 = 11
Answer:
i believe it is c)82 but i may be wrong
Step-by-step explanation:
Answer:
2nd option
Step-by-step explanation:
Using the identities
tan²θ + 1 = sec²θ
cotθ = 
Given
secθ = - 
, then
tan²θ + 1 = (- )² = 
( subtract 1 from both sides )
tan²θ = 
( take the square root of both sides )
Since 
< θ < π and tanθ < 0 , then
tanθ = - 
Then
cotθ = 
= - 
