It is the 3rd answer, y+6= 13(x+2) since the the point slope formula is
y-y1 = m(x-x1)
you plug the y-value of the coordinate point into y1 and you plug the x-value of the coordinate into x1. You plug the slope into m.
Answer:
have a nice day! God bless
Step-by-step explanation:
Obtuse scalene triangle
Answer:
x=1
Step-by-step explanation
:−5x=−2x−3
Step 1: Add 2x to both sides.
−5x+2x=−2x−3+2x
−3x=−3
Step 2: Divide both sides by -3.
−3x
−3
=
−3
−3
x=1
Answer:
mistake in the second line
Step-by-step explanation:
3(x-6)+(4x+12)-6x
3x-18+4x+12-6x
x-6
Given that S<span>am's distribution of meal costs has a mean of $9 and a standard deviation of $3, this means that the range of Sam's meal cost that are within one standard deviation is given by ($9 - 3, $9 + 3) = ($6, $12).
Given that Sam </span><span>always tips the server $2 plus 10% of the cost of the meal, this means that when the cost of the meal is $9, Sam tips $2 + (0.1 x 9) = $2 + $0.9 = $2.90
Therefore, the mean of the distribution of Sam's tips is $2.90
Similarly, the </span><span>range of Sam's tips that are within one standard deviation is given by ($2 + 0.1(6), $2 + 0.1(12)) = ($2 + 0.6, $2 + 1.2) = ($2.6, 3.2) = ($2.9 - $0.3, $2.9 + $0.3)
Therefore, </span><span>the standard deviation of the distribution of Sam's tips is $0.3</span>
