Answer:
3x - 6
Step-by-step explanation:
To evaluate f(2x) and f(x + 2) substitute x = 2x and x = x + 2 into f(x)
f(2x) = 3(2x) - 2 = 6x - 2
f(x + 2) = 3(x + 2) - 2 = 3x + 6 - 2 = 3x + 4
Thus
f(2x) - f(x + 2)
= 6x - 2 - (3x + 4)
= 6x - 2 - 3x - 4
= 3x - 6
Answer:
Step-by-step explanation:
(4+4)/(0-2)= 8/-2 = -4
y + 4 = -4(x - 2)
y + 4 = -4x + 8
y = -4x + 4
Answer:
the probability is 0.0202
Step-by-step explanation:
The computation is shown below:
Given that
The Average life span = 17 hours
Standard deviation = 0.8 hours
Sample = 30 batteries
Sample mean = 16.7 hours
Now based on the above information
The probability is
![P (\bar x \leq 16.7) = P (\frac{\bar x - \mu}{(\frac{\sigma }{\sqrt{n} } )} \leq (\frac{16.7 - \mu}{(\frac{\sigma }{\sqrt{n} } )}\\\\= P(z\leq \frac{16.7-17}{\frac{0.8}{\sqrt{30} } } )\\\\= P(\leq -2.05)\\\\= 0.0202](https://tex.z-dn.net/?f=P%20%28%5Cbar%20x%20%5Cleq%2016.7%29%20%3D%20P%20%28%5Cfrac%7B%5Cbar%20x%20-%20%5Cmu%7D%7B%28%5Cfrac%7B%5Csigma%20%7D%7B%5Csqrt%7Bn%7D%20%7D%20%29%7D%20%5Cleq%20%20%28%5Cfrac%7B16.7%20-%20%5Cmu%7D%7B%28%5Cfrac%7B%5Csigma%20%7D%7B%5Csqrt%7Bn%7D%20%7D%20%29%7D%5C%5C%5C%5C%3D%20P%28z%5Cleq%20%5Cfrac%7B16.7-17%7D%7B%5Cfrac%7B0.8%7D%7B%5Csqrt%7B30%7D%20%7D%20%7D%20%29%5C%5C%5C%5C%3D%20P%28%5Cleq%20-2.05%29%5C%5C%5C%5C%3D%200.0202)
Hence, the probability is 0.0202
y = ⁻¹/₂x + 3
¹/₂x + y = ⁻¹/₂x + ¹/₂x + 3
¹/₂x + y = 3
2(¹/₂x + y) = 2(3)
2(¹/₂x) + 2(y) = 6
x + 2y = 6
Answer:
Step-by-step explanation:
I do t k ow the answer