I cant see it please send another pic of it. closer to the screen.
Answer:
2z+14
Step-by-step explanation:
you multiply
4*z =4z
4*2 =8
and then you multiply
2*3=6
2*-z=-2z
the answer is 2z+14
Answer:
x+3
Step-by-step explanation:
21=7x3. Hence answer is 3
3.25 can be re-written as;
=3+0.25
Converting the decimal to a fraction gives;
3+
![\frac{25}{100}](https://tex.z-dn.net/?f=%20%5Cfrac%7B25%7D%7B100%7D%20)
=Simplify the fraction;
3+
![\frac{1}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B4%7D%20)
The final answer is;
3
Answer:
Range = (237100, 292900)
Step-by-step explanation:
Using Chebyshevs Inequality:
![P(|X - \mu | \le k \sigma )\ge 1 -\dfrac{1}{k^2}= 0.889](https://tex.z-dn.net/?f=P%28%7CX%20-%20%5Cmu%20%7C%20%5Cle%20k%20%5Csigma%20%29%5Cge%201%20%20-%5Cdfrac%7B1%7D%7Bk%5E2%7D%3D%200.889)
![1 -\dfrac{1}{k^2}= 0.889](https://tex.z-dn.net/?f=1%20%20-%5Cdfrac%7B1%7D%7Bk%5E2%7D%3D%200.889)
![\dfrac{1}{k^2}= 1- 0.889](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7Bk%5E2%7D%3D%201-%200.889)
![\dfrac{1}{k^2}=0.111](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7Bk%5E2%7D%3D0.111)
![k = \sqrt{\dfrac{1}{0.111}}](https://tex.z-dn.net/?f=k%20%3D%20%5Csqrt%7B%5Cdfrac%7B1%7D%7B0.111%7D%7D)
![k \simeq 3](https://tex.z-dn.net/?f=k%20%5Csimeq%203)
Thus, 88.9% of the population is within 3 standard deviation of the mean with the Range = μ ± kσ
where;
μ = 265000
σ = 9300
Range = 265000 ± 3(9300)
Range = 265000 ± 27900
Range = (265000 - 27900, 265000 + 27900)
Range = (237100, 292900)