Answer: good luck
Step-by-step explanation:Step 1) Because the first equation is already solved for
y
we can substitute
3
x
+
8
for
y
in the second equation and solve for
x
:
8
x
+
4
y
=
12
becomes:
8
x
+
4
(
3
x
+
8
)
=
12
8
x
+
(
4
⋅
3
x
)
+
(
4
⋅
8
)
=
12
8
x
+
12
x
+
32
=
12
(
8
+
12
)
x
+
32
=
12
20
x
+
32
=
12
20
x
+
32
−
32
=
12
−
32
20
x
+
0
=
−
20
20
x
=
−
20
20
x
20
=
−
20
20
20
x
20
=
−
1
x
=
−
1
Step 2) Substitute
−
1
for
x
in the first equation and calculate
y
:
y
=
3
x
+
8
becomes:
y
=
(
3
⋅
−
1
)
+
8
y
=
−
3
+
8
y
=
5
The solution is:
x
=
−
1
and
y
=
5
or
(
−
1
,
5
)
You are given the side adjacent to ∠B and you want to find the length of the side opposite. The trig ratio that relates an angle to adjacent and opposite sides is ...
... tan(∠C) = Opposite/Adjacent = (AB)/(BC)
Multiplying by BC gives
... AB = BC×tan(∠C) = (14 ft)×(√3) ≈ 24.2 ft
Answer:
(6,1)
Step-by-step explanation:
Answer:
five over eight, five-eighths
you need to give possible options
Step-by-step explanation:
Answer:A
Step-by-step explanation:
a. 2(3y - 2x) = 6y - 4x or rewritten as -4x + 6y
4x + 6y - 8 x
= 4x - 8x + 6y
= -4x + 6y
