J is the midpoint of ⎯⎯⎯⎯⎯⎯⎯ H
K
¯
. What are HJ, JK, and HK?
The image consists of a segment HK and point J is between points H and K. Measure of segment HJ is 9x-2 and that of segment JK is 4x+13.

A. HJ = 7, JK = 7, HK = 14
B. HJ = 7, JK = 17, HK = 24
C. HJ = 27, JK = 27, HK = 54
D.

the answer is 4.8 units on e2020.

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

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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