Answer:
1. Anything to do with the same slope but different a B (Ex. y=1/3x+1 and y=1/3x-8)
2. No solutions
Step-by-step explanation:
1. Because the two lines are <u>parallel</u>, when no intersection between two lines happens, there will need to be a change in the B but the same slope. Remember the formula for an equation is y=mx+b. The m stands for the slope. With parallel lines, slopes are the same. If lines were to never intersect, you would have to change the b to a different number so that both lines could keep going at the same time, but never intersect.
2. Remember, solutions only happen when the two lines intersect. Infinite solutions happen when the lines are the same. One solution happens when two lines only have one point where they intersect. No solutions happen when the two lines don't intersect at all. Based off the graph given, there are no intersections so, there will be no solutions.
Answer: 1.18
Step-by-step explanation:
Let m be mean
Mean= sum/ n
Mean= (5.3+2.3+2.9+4.3+3.8 ) / 5
m= 18.6 / 5
M= 3.72
Mean= 3.72
Standard deviation sample formula is:
S.D= sqrt((|x-m|^2) / n-1)
So let start with |x-m|^2
For 1st: |5.3-3.72|^2=2.4964
For 2nd: |2.3-3.72|^2=2.0164
For 3rd: |2.9-3.72|^2=0.6724
For 4th: |4.3-3.72|^2=0.3364
For 5th: |3.8-3.72|^2=0.0064
Summation of |x-m|^2 = 5.528
Standard deviation sample formula is:
S.D = sqrt((summation of |x-m|^2) / n-1)
S.D=sqrt(5.528 / 4)
S.D=sqrt(1.382)
S.D=1.176
S.D=1.18 to 2 decimal place
Answer:
i actually dont know im so sorry but i will keep trying to find the answer
14-6+5
13
13 is the required answer
Answer:
72÷6=12
so at the nursery it cost $12 per shrub
66÷6=11
so at the store it cost $11 per shrub
so if you buy 21 shrubs from the nursery it will cost: 12×21=$252
but if you buy 21 shrubs from the store it only cost: 11×21=$231
$252-$231=$21
