Answer: x^2, x<2, 5, 2</=x<4
Step-by-step explanation:
The value of x in the expression, x 2 = 9 is 4.5
9 divided by 2 = 4.5
Answer:
It is 3
Step-by-step explanation:
Sound travels 10200m farther through stone in 17 seconds than through aluminium
Speed of sound in aluminium = 3100 m/s
The speed of sound in stone = 3700 m/s
Time taken = 17 minutes
Distance traveled = Speed x Time
Distance traveled by sound in aluminium in 17 seconds = 3100 x 17
Distance traveled by sound in aluminium in 17 seconds = 52700 m
Distance traveled by sound in stone in 17 seconds = 3700 x 17
Distance traveled by sound in stone in 17 seconds = 62900 m
Difference in the distance traveled = 62900 - 52700
Difference in the distance traveled = 10200 m
Sound travels 10200m farther through stone in 17 seconds than through aluminium
Learn more here: brainly.com/question/13096122
Answer:
The number is 
Step-by-step explanation:
From the question we are told that
The sample size is n = 800
The number of seniors is S = 519
The number of commuters is C = 430
The number of of seniors that are commuters is 
Generally the number of 800 surveyed students who were seniors or were commuters is mathematically evaluated as
=> 
=>
