If it didn't have that piece cut out on the bottom, it would be a rectangle that's 9cm wide and 5cm high. Its area would be 9x5= 45 cm².
But that piece is cut out of the bottom. The cut-out piece is 3cm wide and 3cm high, so its area is 3x3= 9 cm².
9 cm² have been cut out of the 45 cm² of the complete big rectangle. So the remaining area of the figure is 45 - 9 =<em> 36 cm²</em> .
The other root must also be rational. Suppose one root is
. Then we can write
where
is the other unknown root. Expanding, we get
It follows that
and since we assumed
are all rational, then there can only be rational solutions for
.
(-∞,4). All I did was isolated x, and it says that x has to be less than 4. That means anything before 4 is fair game. Since the problem said that it can't be equal to 4 (as it would have had to have a line under the less than symbol), I used parenthesis on the 4 side as opposed to hard brackets. The <span>∞ always requires parenthesis. </span>
Answer:
6.61387 stones
Step-by-step explanation:
Answer:
(
0
,
5
)
,
(
1
,
3
)
(
2
,
1
)
Step-by-step explanation:
1. x=0
y=-2(0)+5
y=5
(
0
,
5
)
2. x=1
y=-2(1)+5
y=-2+5
y=3
(
1
,
3
)
3. x=2
y=-2(2)+5
y=-4+5
y=1
(
2
,
1
)