Answer: a= 7x-11
Step-by-step explanation: cuz im smart
Answer:
AC ≈ 7.8 units
Step-by-step explanation:
Calculate the distance d using the distance formula
d = 
with (x₁, y₁ ) = A (- 4, - 4 ) and (x₂, y₂ ) = C (2, 1 )
AC = 
= 
= 
= 
= 
≈ 7.8 ( to 1 dec. place )
Answer:
x = 11.7
Step-by-step explanation:
3(x + 3) = 4(4 + 7) => intersecting secant theorem
3(x + 3) = 4(11)
3x + 9 = 44
3x + 9 - 9 = 44 - 9
3x = 35
x = 11.7
The teacher made progress in standardizing the test scores from the beginning of the year to the end. The MAD tells us this because the difference in the teachers scores from the mean is less at the end. The Mean Absolute Deviation is a measure of variability, and the smaller the number, the less variability there is in the answers. So, in this example there are more scores closer to the average than when they first graded the essays.
Is this all one equation?
If it isn't, here:
-6x ^ 2 - 4x <-- Equation 1
18 - 9 + 18 - 9 = 18 <-- Equation 2
If it is:
-5x + x - 6x ^ 2 + 6 * 3 - 4 - 5 + 18 - 9
-4x - 6x ^ 2 + 18 - 9 + 18 - 9
-4x - 6x ^ 2 + 18
Then we order it
-6x ^ 2 - 4x + 18
