the domain of the equation is this
{
x
|
x
≠
0
}
but I'm not entirely sure this is correct
Emile's graph will have the steepest slope Gilbert will have the second steepest slope, and henri will have the least steep slope
Increasing the sample size by a factor of 4 or multiplying
it by 4 is equal to increasing the standard error by 1/2. Therefore, the
interval will be half as varied. This also works almost for population
averages as lengthy as the multiplier from the t-curve doesn't modify much when
increasing the sample size.
Let the number of rows be x
rows = x
seats in each row = x + 20
total seats = 1344
x (x + 20) = 1344
x^2 + 20x - 1344 = 0
(x + 48)(x - 28) = 0
x = -48 (rejected, answer cannot be negative) or x = 28
Therefore,
x = 28
x + 20 = 48
Check:
Row = 28
Numbers of seat per row = 28 + 20 = 48
28 x 48 = 1344 (Correct)
Ans:There are 48 seats per row
Okay so we know that angle Q is a 90º angle. And angle M is the same as angle P which is 74º and we know that all triangles equal 180º so 180-74-90=16 so angle MNQ is 16º
