Answer:
is NOT true.
Step-by-step explanation:
1.
......True
( 1 )² = 1
2.
If ........ NOT True
∴ x =± 1 .........this is correct
3.
......True
( -1 )² = 1
4.
x2 = 1 if and only if x = 1 or x = -1.
.........True
( 1 )² = 1
( -1 )² = 1
Answer:
Step-by-step explanation:
3 i think
You could distribute the 5 to each separated piece of the number.
For example, (5×100) + (5×90) + (5×8)
Then, when you add the sums together you can get your answer. Hope that helped :)
Answer:
See below
Step-by-step explanation:
(4,7) is just 4 and 7 but [4,7] is all the points between 4 and 7. I am pretty sure this is correct, but i could be wrong. Hope this helped!
Hi, here is the correct answer <3
Answer:
A rectangle.
Step-by-step explanation:
Since the cross-section will be perpendicular to the base, it is parallel to the lateral faces of the prism. This means it will be the same shape as the lateral faces.
The lateral faces of a rectangular prism are rectangles; this means this cross-section will be a rectangle as well.
