That would be written as:

And the step-by-step equation would be:
→ we take the 2 to the right side of the equation and do the IO*
→we solve for 
→ final answer
*Ps - IO is not an existing term and stands for inverse operation. In this case, because when we take to 2 to the right side of the equation (the 2 is a power) it'll have to turn into a square root (because exponents and roots are inverse operations)
Hope it helped,
BioTeacher101
Triangle P isn't unique because all sides are equal and all interior angles are equal.
#7 is B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
b) 8 x - 21
Step-by-step explanation:
Apply the distributive property.
7
x
+
7
⋅
−
1
−
2
(
x
+
1
)
+
3
(
x
−
4
)
Multiply
7
by
−
1
.
7
x
−
7
−
2
(
x
+
1
)
+
3
(
x
−
4
)
Apply the distributive property.
7
x
−
7
−
2
x
−
2
⋅
1
+
3
(
x
−
4
)
Multiply
−
2
by
1
.
7
x
−
7
−
2
x
−
2
+
3
(
x
−
4
)
Apply the distributive property.
7
x
−
7
−
2
x
−
2
+
3
x
+
3
⋅
−
4
Multiply
3
by
−
4
.
7
x
−
7
−
2
x
−
2
+
3
x
−
12
Subtract
2
x
from
7
x
.
5
x
−
7
−
2
+
3
x
−
12
Add
5
x
and
3
x
.
8
x
−
7
−
2
−
12
Subtract
2
from
−
7
.
8
x
−
9
−
12
Subtract
12
from
−
9
.
8
x
−
21=
8
x
−
21
Answer:
1/2
Step-by-step explanation:
x = t² + 2t
dx/dt = 2t + 2
y = t² + 1
dy/dt = 2t
dy/dx = (dy/dt) / (dx/dt)
dy/dx = 2t / (2t + 2)
dy/dx = t / (t + 1)
At t = 1, dy/dx = 1/2.