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<h3>Final value : x² -9x - 11</h3>
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<h3>Step by step </h3>
2x + 1 = ⅕ × (x² + x - 6)
2x + 1 = ⅕x² + ⅕x - 6/5
1/5x² +1/5x - 2x - 6/5 - 1 = 0
1/5x² -9/5x - 11/5 = 0
x² - 9x - 11 = 0. #times by 5
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#Give me brainliest pls im tired typing all of this
Answer:
1. MAD for Jada's data set = 1
Step-by-step explanation:
Mean Absolute Deviation = sum of the distances of each data value from the mean ÷ number of data value
Jada's data set is given as: 4, 4, 4, 6, 6 ,6
Mean = 5
✔️Find the distance between each data value form the mean
4 = |4 - 5| = 1
4 = |4 - 5| = 1
4 = |4 - 5| = 1
6 = |6 - 5| = 1
6 = |6 - 5| = 1
6 = |6 - 5| = 1
✔️Find the sum of the distances of each data value from the mean
1 + 1 + 1 + 1 + 1 + 1 = 6
✔️Find the MAD:
MAD = 6/6
MAD = 1
Because x1 = x2 = -8 the line is vertical.
The slope of a vertical line is undefined.
Answer: 20
Step-by-step explanation:
Let the total number of pencils that Jackson has be represented by x.
Since 20% of his pencils are broken which equals 4. This can be written and represented in an equation as:
20% of x = 4
20/100 × x = 4
0.2x = 4
x = 4/0.2
x = 20
There are a total of 20 pencils
Lets say a fork costs x $. Therefore a spoon costs 2x $.
2x + x = 6. => 3x = 6. => x=2
so:
a) A spoon costs: 2x = 2 × 2 = $4
b) (12 × 4) + (10 × 2) = $68
