Answer:
²/₃₀
Step-by-step explanation:
The dispense rate is the number of sprays divided by the number of minutes.
rate = sprays/minutes
That automatically eliminates Options A and C, because the number of sprays is less than 10.
Option D is wrong, because at 30 min the number of sprays is 2.
rate = 2 sprays/30 min or ²/₃₀ sprays/min
Answer:
Hello
Step-by-step explanation:
Hello
Your answer:
<span>Equation:
x(x+1) = 2(x+1)+77
-----
x^2+x = 2x+79
x^2-x-79 = 0
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This quadratic does not have an integer solution.</span>
Step One is to add up all the values
6.5+5+6+5.5+7+4+4.5+5+6+5.5+4+7.5+6+7+8+5+6+6.5+6.5+5 = 116.5
Step Two is to divide the result from step one by 20 (since there are 20 values added up)
116.5/20 = 5.825
The sample mean is 5.825
