The sample mean is the sum of the sample values divided by the number of them:
(7 +7 +10 +6 +9 +6 +8 +7.5 +8.5 +8)/10 = 77/10 = 7.7
The sample mean is 7.7.
Not completely sure what you’re asking but y=3.5x has the sharpest rise and out of the bottom four y=3x does
Let's solve your equation step-by-step.
2+5x+2=0
Step 1: Simplify both sides of the equation.
2+5x+2=0
(5x)+(2+2)=0(Combine Like Terms)
5x+4=0
5x+4=0
Step 2: Subtract 4 from both sides.
5x+4−4=0−4
5x=−4
Step 3: Divide both sides by 5.
5x
5
=
−4
5
x=
−4
5
Answer:
x=
−4
5
x + 5 = (x + 5) − 5, which has no solution
1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48 and 96
