7 * 34 =
Miles times amount =
238 miles in total.
Hope this helped!
Answer:
D. y=40x + 50
y=35x + 75
Step-by-step explanation:
x is per hr
it's 40 and 35 dollars per hr
Answer:
The null hypothesis ![H_o : \mu = 3.2 \ mg/dl](https://tex.z-dn.net/?f=H_o%20%3A%20%20%5Cmu%20%3D%203.2%20%5C%20mg%2Fdl)
The alternative hypothesis ![H_a : \mu > 3.2 \ mg/dl](https://tex.z-dn.net/?f=H_a%20%3A%20%20%5Cmu%20%3E%203.2%20%5C%20mg%2Fdl)
Step-by-step explanation:
From the question we are told that
The mean is ![\mu = 3.2 \ mg/dl](https://tex.z-dn.net/?f=%5Cmu%20%3D%203.2%20%5C%20%20mg%2Fdl)
The standard deviation is ![\sigma = 1.5 mg/dl](https://tex.z-dn.net/?f=%5Csigma%20%3D%20%201.5%20mg%2Fdl)
The sample size is n = 25
The sample mean is ![\= x = 3.75 \ mg /dl](https://tex.z-dn.net/?f=%5C%3D%20x%20%3D%203.75%20%5C%20%20mg%20%2Fdl)
Generally
The null hypothesis is : That the mean of the Arsenic blood concentrations in healthy individuals is ![\mu = 3.2 \ mg/dl](https://tex.z-dn.net/?f=%5Cmu%20%3D%203.2%20%5C%20%20mg%2Fdl)
i.e
The null hypothesis ![H_o : \mu = 3.2 \ mg/dl](https://tex.z-dn.net/?f=H_o%20%3A%20%20%5Cmu%20%3D%203.2%20%5C%20mg%2Fdl)
The alternative hypothesis is : That the mean of the Arsenic blood concentrations in healthy individuals is greater than ![\mu = 3.2 \ mg/dl](https://tex.z-dn.net/?f=%5Cmu%20%3D%203.2%20%5C%20%20mg%2Fdl)
The alternative hypothesis ![H_a : \mu > 3.2 \ mg/dl](https://tex.z-dn.net/?f=H_a%20%3A%20%20%5Cmu%20%3E%203.2%20%5C%20mg%2Fdl)
Step-by-step explanation:
֊23x-8+35x-4=12x-12
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