Answer: 8.01
Step-by-step explanation:
Speed = distance/time = 280/4.5 = 62.44mph
Time = distance/speed = 500/62.44 = 8.0071 hrs
Answer:
The minimum IQ score will be "126".
Step-by-step explanation:
The given values are:
Mean
![\mu = 100](https://tex.z-dn.net/?f=%5Cmu%20%3D%20100)
Standard deviation
![\sigma=15](https://tex.z-dn.net/?f=%5Csigma%3D15)
Now,
⇒ ![P(z>x)=4 \ percent \ i.e., 0.04](https://tex.z-dn.net/?f=P%28z%3Ex%29%3D4%20%5C%20percent%20%5C%20i.e.%2C%200.04)
⇒ ![P(z>\frac{x- \mu}{\sigma} )=0.04](https://tex.z-dn.net/?f=P%28z%3E%5Cfrac%7Bx-%20%5Cmu%7D%7B%5Csigma%7D%20%29%3D0.04)
⇒ ![1-P(z \leq \frac{x-100}{15})=0.04](https://tex.z-dn.net/?f=1-P%28z%20%5Cleq%20%5Cfrac%7Bx-100%7D%7B15%7D%29%3D0.04)
⇒ ![\frac{x-100}{15}=z0.96](https://tex.z-dn.net/?f=%5Cfrac%7Bx-100%7D%7B15%7D%3Dz0.96)
![=NORMDIS(z=0.96)](https://tex.z-dn.net/?f=%3DNORMDIS%28z%3D0.96%29)
![=1.751](https://tex.z-dn.net/?f=%3D1.751)
⇒ ![x=100+15\times 1.751](https://tex.z-dn.net/?f=x%3D100%2B15%5Ctimes%201.751)
![=126.265 \ i.e., 126](https://tex.z-dn.net/?f=%3D126.265%20%5C%20i.e.%2C%20126)
The equation given in the question is
13 + (w/7) = - 18
(91 + w) / 7 = - 18
91 + w = - 126
w = - 126 - 91
= - 217
I hope that the procedure is clear enough for you to understand. I also hope that this is the answer that you were looking for and the answer has actually come to your desired help.
Answer:
Option B.
Step-by-step explanation:
The given quadratic equation is
![9x^2=4](https://tex.z-dn.net/?f=9x%5E2%3D4)
We need to find the solution of given quadratic equation.
Divide both sides by 9.
![\frac{9x^2}{9}=\frac{4}{9}](https://tex.z-dn.net/?f=%5Cfrac%7B9x%5E2%7D%7B9%7D%3D%5Cfrac%7B4%7D%7B9%7D)
![x^2=\frac{4}{9}](https://tex.z-dn.net/?f=x%5E2%3D%5Cfrac%7B4%7D%7B9%7D)
Taking square root on both sides.
![x=\pm\sqrt{\frac{4}{9}}](https://tex.z-dn.net/?f=x%3D%5Cpm%5Csqrt%7B%5Cfrac%7B4%7D%7B9%7D%7D)
![x=\pm\frac{2}{3}](https://tex.z-dn.net/?f=x%3D%5Cpm%5Cfrac%7B2%7D%7B3%7D)
The solution of given equation are
and
.
Therefore, the correct option is B.
Answer:
See picture attached
Step-by-step explanation:
I hope this helps you.
Please give me brainliest if it's correct