Question

Help me, please ?? :)

Answer 1

a) 11

b) 16

c) between 5 and 6

d) 16

Explanation:

`\text{a. }\quad√(121)=√(11^2)=\boxed{11}\\\\\text{b. }\quad 8√(4)=8√(2^2)=8\cdot 2=\boxed{16}\\\\\text{c. }\quad√(35)\ \dots\ √(25)<√(35)<√(36)\\\\\text{ }\qquad√(5^2)<√(35)<√(6^2)\\\\\text{ }\qquad \boxed{5<√(35)<6}\\\\\text{d. }\quad(.8)/(.05)=(0.80\cdot 20)/(.05\cdot 20)=(16)/(1)=\boxed{16}`