Answer:
if am right it's 90
Step-by-step explanation:
Answer: 2.06 x 10^3
Move the decimal place until there is only one digit and the rest are bending the decimal. Then multiply the number by 10 to the power of however many times you moved the decimal over.
we know that
If two numbers have a sum of zero, then we say they are additive inverses.
so
z+0.8=0 -------> the sum is equal to zero
z=-0.8------> the additive inverse of z is equal to -0.8
using a graph tool
see the attached figure
<u>the answer Part a) and part b) in the attached figure</u>