Answer:
I need help to sooo yeah
Step-by-step explanation:
Soryy
Answer:
ohh try the tutor well help you with this
Answer:
C) 5 hours
Step-by-step explanation:
Find the mean of the sample
Add the numbers together and divide by the number of points
mean = ( 4.5 + 6.25 + 3+ 2.5+ 7 + 6.75)/6
=30/6
=5
D
given the 2 equations
x + 2y = - 8 → (1)
- 4x + y = 5 → (2)
multiply (1) by 4
4x + 8y = - 32 → (3)
add (2) and (3) term by term to eliminate term in x
9y = - 27 ( divide both sides by 9 )
y = - 3
substitute y = - 3 in either (1) or (2) and solve for x
(1) : x - 6 = - 8 ( add 6 to both sides )
x = - 2
solution is (- 2, - 3 ) → D
It’s 8.9 because in a simpler way 8 is greater than 7
