Find the midpoint between each pair of points. (7, -2) and (-4, 2)

Given the points C(-1, -5) and D(7, 11), find the coordinates of point E on CD such that the ratio of CE to ED is 5:3.

Find the midpoint between each pair of points.

(-1, -5) and (-5, 9)

Find the distance between each pair of points. Round to the nearest tenth.

(-4, 5) and (4, 0)

Find the distance between each pair of points. Round to the nearest tenth.

(-8, -2) and (6, -1)

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: