An object is moving at a speed of 1 yard every 7.5 months. Express this speed in centimeters per hour. Round your answer to the nearest hundredth.

0.01cm/h

Step-by-step explanation:

1 yard is :

1y=0.9144 m and therefore 1 yard=91.44 cm ( 1m=100 cm)

1 month has 730 hours

7.5 months = 5475 hours

the object will move 1 yard/ 7.5 months and

the object will move 91.44 cm/ 5475 h or 0.01 cm/h

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:

step-by-step explanation: