I believe the answer is 19 cm, because you compare 8cm to the other side, it's basically the same. Multiply 2 x 8 and you get 19 cm.
Answer:
x
=
12 and y
=
1
Explanation:
Given equations are:
(1) ------ 1
3
x
−
y
=
3
(2)------
2
x
+
y
=
25
Multiply (1) by 3 to eliminate the fractional part,
(1) ------- x
−
3
y
=
9 ⇒
x
=
9
+
3
y
-------- let this be equation (3)
Now substitute this value of
x
from (3) in equation (2),
(2) --------- 2
(
9
+
3
y
)
+
y
=
25 ⇒
18
+
6
y
+
y
=
25 ⇒
7
y
=
25
−
18 ⇒
y
=
7
7
Therefore,
y
=
1
Substituting this value of
y
in equation (3),
x
=
9
+
3
×
1
x
=
9
+
3
Therefore,
x
=
12
So we have the values of
x and y as,
x
=
12
and
y
=
1
╦────────────────────────────╦
│Hope this helped _____________________│
│~Derelis ____________________________ │
╨___________________________________╨
Answer:
-5/2x+3
Step-by-step explanation:
you reciprocate the slope since you are trying to find a line perpendicular.
From this m=2/5 to -5/2
then use the formula y-y1 =m(x-x1)
then you put in the points
y - - 2= -5/2(x- 2)
y+2= -5/2x +5
-2 -2
y= -5/2+ 3
Answer:
The first one isnt equivalent
Step-by-step explanation:
