Answer:
0 y -6 o 1 y -7
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
Using the rule of radicals
×
⇔ ![\sqrt{ab}](https://tex.z-dn.net/?f=%5Csqrt%7Bab%7D)
(a)
× ![\sqrt{6}](https://tex.z-dn.net/?f=%5Csqrt%7B6%7D)
= ![\sqrt{3(6)}](https://tex.z-dn.net/?f=%5Csqrt%7B3%286%29%7D)
= ![\sqrt{18}](https://tex.z-dn.net/?f=%5Csqrt%7B18%7D)
= ![\sqrt{9(2)}](https://tex.z-dn.net/?f=%5Csqrt%7B9%282%29%7D)
=
× ![\sqrt{2}](https://tex.z-dn.net/?f=%5Csqrt%7B2%7D)
= 3![\sqrt{2}](https://tex.z-dn.net/?f=%5Csqrt%7B2%7D)
(b)
× ![\sqrt{18}](https://tex.z-dn.net/?f=%5Csqrt%7B18%7D)
= ![\sqrt{8(18)}](https://tex.z-dn.net/?f=%5Csqrt%7B8%2818%29%7D)
= ![\sqrt{144}](https://tex.z-dn.net/?f=%5Csqrt%7B144%7D)
= 12
Answer:
![5\frac{1}{4}\text{ miles}](https://tex.z-dn.net/?f=5%5Cfrac%7B1%7D%7B4%7D%5Ctext%7B%20miles%7D)
Step-by-step explanation:
Given,
The number of miles she walks every day = ![\frac{3}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4%7D)
∵ 1 week = 7 days,
⇒ 1 day =
week,
Thus,
The number of miles she walks
week= ![\frac{3}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4%7D)
⇒ The number of miles she walks in a week = ![\frac{3}{4}\times 7=\frac{21}{4}=5\frac{1}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4%7D%5Ctimes%207%3D%5Cfrac%7B21%7D%7B4%7D%3D5%5Cfrac%7B1%7D%7B4%7D)