Step-by-step explanation:
0.2x² − 0.8x = 1.6
Multiply both sides by 5.
x² − 4x = 8
Complete the square by adding 4 to both sides.
x² − 4x + 4 = 12
(x − 2)² = 12
x − 2 = ±√12
x = 2 ± √12
The positive solution is x = 2 + √12 ≈ 5.46.
Answer:
decrease income
Step-by-step explanation:
income is already lower than expenses so lowering it further is the worst you can do out of all 4
50% of data will be less than 50
Step-by-step explanation:
A normal distribution has the shape of the graph like a bell.
Given

we have to find how much data will be less than 50.
So we have to calculate z-score for 50.

The z-score is zero. As we have to find the number of values less than 50 we will find the area to the left of curve

In order to convert the probability into percentage
=0.50*100
=50%
Hence,
50% of data will be less than 50
Keywords: Probability, Area under the curve
Learn more about z-score at:
#LearnwithBrainly
Answer:
33
Step-by-step explanation:
6x4+9= 33