Answer:
Step-by-step explanation:
There are approximately 7.5 × 10¹⁸ grains of sand on earth.
There are approximately 7 × 10²⁷ atoms in an average human body.
A. There are more atoms in an average human body. When comparing the order of magnitude of each number 27 it greater than 18.
7 × 10²⁷ > 7.5 × 10¹⁸
B. Now we will calculate how many times more atoms are in a human body compared to grains of sand on earth.
=
≈ 1 × 10²⁷⁻¹⁸
≈ 1 × 10⁹
≈ 10⁹
There are approximately 1,000,000,000 atoms more in a human body compared to the grains of sand on earth.
Answer:
B 5 *(x+y)
C (x-y) *(x+y)
Step-by-step explanation:
A. x+y There is not product here Remember product is multiply
B 5 *(x+y)
There are two factors and they are multiplied
5 is one factor (x-y) is the other
C (x-y) *(x+y)
There are two factors and they are multiplied
(x-y) is one factor and (x+y) is the other factor and they are multiplied
D x*y*z
There are three factors multiplied here
Answer:
B. 5(x + y)
C. (x - y)(x + y)
Does it have any real solutions? If so what are they?