All these can be done without a calculator by taking the factors of ten separately. We count zeros for the exponents.


I'll leave the rest for you or someone else, sorry.
Sz-[32-(10z+2)]
=Sz-(32-10z-2)
=Sz-(30-10z)
=Sz-30+10z
Hope my answer helped u :)
Answer:
Why are you sending questions at 9:15 in the morning.
Step-by-step explanation:
Answer:
2×sqrt(2) = 2.828427125...
Step-by-step explanation:
x = "a positive number"
x + 56/x = x³
x² + 56 = x⁴
x⁴ - x² - 56 = 0
(x² + 7)(x² - 8) = 0
this is true only for
x² = -7
or
x² = 8
x² = -7 would mean that x is an imaginary number. so, that is not a valid solution here.
x² = 8 means
x = sqrt(8) = sqrt(4×2) = 2×sqrt(2) = 2.828427125...
Answer:
AC = 6
Step-by-step explanation:
x= 6
If you need work I can send it