Answer:
yes it is rational
Explanation:
the a^2-b^2=(a+b)(a-b)
so the exact number of the equation above is 2-3 = -1
-1 is a rational because it can be written in form of fractions,such as -1/1,-2/2,-3/3,-4/4
He was the first European explorer to circumnavigate the world.
B.
He was the first European explorer to explore all of the continents.
C.
He was the first European explorer to sail around the southern tip of Africa.
D.
He was the first European explorer to travel to Africa and Asia.
Answer: c
Explanation: :)
Answer:
false
Explanation:
spears
tools
Tools
Explanation:
there are different kind of ages but the where different tools where used stones where used during the stone age and studies shows that the stone age lasted for about 2.5 million years