The values of a, b and c can be easily determined if we arrange the terms of the given quadratic expression from the highest power to the lowest such as 8X²-2X-1=0.
Tha value of variables a, b, and c are enumerated below:
a=8
b-2
c-1
Answer: Area =
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Explanation:
The triangle on the right side is a 45-45-90 triangle
The hypotenuse is 8, so the leg length is
This is the height of the parallelogram. The base is 15 which is always perpendicular to the height, and vice versa.
The area of this parallelogram is therefore,
Answer:
You will save $14.00
Step-by-step explanation:
If the shirt is 35% off, it means that you will effectively save 35% of the price. 35% of the price in this case is 35% of 40, which is $14.00
Answer is C => 4(80+20)-12 => 4(100)-12 =>400-12 => 388
Answer:
The ratio of the difference of the two means to Sidney's mean absolute deviation = = 1.2195
Step-by-step explanation:
P.S - The exact question is -
Given - The means and mean absolute deviations of Sidney’s and Phil’s grades are shown in the table below.
Sidney’s Grades Phil’s Grades
Mean 82 78
Mean Absolute Deviation 3.28 3.96
To find - Which expression represents the ratio of the difference of the two means to Sidney’s mean absolute deviation?
Proof -
Given that Mean of Sidney Grades = 82
Mean of Phil's Grades = 78
So,
The difference of two means = 82 - 78 = 4
Also,
Given, Mean Absolute Deviation of Sydney = 3.28
Now,
The ratio of the difference of the two means to Sidney's mean absolute deviation = = 1.2195