It is simple 3.4, 4.3, 4.7, 7.4
Answer:
U (2,-1)
Step-by-step explanation:
if you replace x to 2, your answer will come out to be -1
Answer:
a
Step-by-step explanation:
if it -4 or 4 it would be undefined
Answer: x < -2
Step-by-step explanation:
Answer:
![\sqrt{5}](https://tex.z-dn.net/?f=%5Csqrt%7B5%7D)
Step-by-step explanation:
we know that
The "power rule" tells us that to raise a power to a power, just multiply the exponents
so
![(a^{m})^{n}=a^{m*n}](https://tex.z-dn.net/?f=%28a%5E%7Bm%7D%29%5E%7Bn%7D%3Da%5E%7Bm%2An%7D)
we have
![(5^{\frac{3}{4}})^{\frac{2}{3}}](https://tex.z-dn.net/?f=%285%5E%7B%5Cfrac%7B3%7D%7B4%7D%7D%29%5E%7B%5Cfrac%7B2%7D%7B3%7D%7D)
Applying the "power rule"
![(5^{\frac{3}{4}})^{\frac{2}{3}}=5^{\frac{3}{4}*\frac{2}{3}}=5^{\frac{1}{2}}=\sqrt{5}](https://tex.z-dn.net/?f=%285%5E%7B%5Cfrac%7B3%7D%7B4%7D%7D%29%5E%7B%5Cfrac%7B2%7D%7B3%7D%7D%3D5%5E%7B%5Cfrac%7B3%7D%7B4%7D%2A%5Cfrac%7B2%7D%7B3%7D%7D%3D5%5E%7B%5Cfrac%7B1%7D%7B2%7D%7D%3D%5Csqrt%7B5%7D)