Answer:
x = 3
Step-by-step explanation:
2x + 3 = 9
2(3) + 3 = 9
6 + 3 = 9
Hope this helps!
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Answer:
The average density of the rod is 1.11 kg/m
Step-by-step explanation:
Linear density is given by the expression 10/(sqrt(x 1)) kg/m
x is said to be measured in meters from one end of the rod. Therefore x represents the length of the rod = 8 m
Substitute the value of x into the expression of linear density to determine the average density of the rod
Average density = 10/(sqrt(81)) = 10/9 = 1.11 kg/m
The first one is d and the second one is b
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Answer:
5=1
10=2
15=3
Step-by-step explanation:
You divide the amount of seconds by 5.
5/5 =1
10/5 =2
15/5 =3