Answer:
√20,
√19,
√17,
√23
Step-by-step explanation:
Answer:
A triangle.
Step-by-step explanation:
The second one is a perfect square trinomial
X^2+16x+64
Answer:
x38
Step-by-step explanation:
Answer:
3.2 x 10^13
Step-by-step explanation:
(8x10^4)(4x10^8)
reorder the terms using the commutative property
(8x4)x(10^4x10^8)
multiply
32x (10^4 x 10^8)
= 32 x 10^4+8
= 32 x 10^12
now convert to scientific notation
=3.2 x 10^13