Answer:
y = (7/8)x + 7
Step-by-step explanation:
"7 over 8 x" is incorrect; you meant "(7/8)x" (which is not the same as "7 over 8 x." Thus, your line is y = (7/8)x - 7. The slope of a parallel line is the same, or (7/8). Given that the line passes thru (8,0), we have enuf info with which to calculate the y-intercept. Write out: y = mx + b. Immediately replace m with (7/8), y with 0 and x with 8, obtaining: 0 = (7/8)(8) + b. Then b = 7, and the equation of this new, parallel, line is y = (7/8)x + 7.
Answer: =−20
y=2
Step-by-step explanation:
Solve for xx in -5y-10=x−5y−10=x.
x=-5y-10
x=−5y−10
2 Substitute x=-5y-10x=−5y−10 into x+9y=-2x+9y=−2.
4y-10=-2
4y−10=−2
3 Solve for yy in 4y-10=-24y−10=−2.
y=2
y=2
4 Substitute y=2y=2 into x=-5y-10x=−5y−10.
x=-20
x=−20
5 Therefore,
\begin{aligned}&x=-20\\&y=2\end{aligned}
x=−20
y=2
i think the best answer is b.cos60 + sin60+1/8(5 +3cos40) the answer is -0.88232537463→
a
3
+
b
3
=
(
a
+
b
)
(
a
2
−
a
b
+
b
2
)
→
a
2
+
b
2
=
(
a
−
b
)
2
+
2
a
b
→
sin
2
x
+
cos
2
x
=
1
→
2
cos
2
x
=
1
+
cos
2
x
and
→
2
sin
2
x
=
1
−
cos
2
x
L
H
S
=
cos
6
(
x
)
+
sin
6
(
x
)
=
(
cos
2
x
)
3
+
(
sin
2
x
)
3
=
[
cos
2
x
+
sin
2
x
]
[
(
cos
2
x
)
2
−
cos
2
x
⋅
sin
2
x
+
sin
2
x
)
2
]
=
1
⋅
[
(
cos
2
x
−
sin
2
x
)
2
+
2
cos
2
x
⋅
sin
2
x
−
cos
2
x
⋅
sin
2
x
]
=
[
cos
2
(
2
x
)
+
cos
2
x
⋅
sin
2
x
]
=
1
4
[
4
cos
2
(
2
x
)
+
4
cos
2
x
⋅
sin
2
x
]
=
1
4
[
2
(
1
+
cos
4
x
)
+
sin
2
(
2
x
)
]
=
2
4
⋅
2
[
2
+
2
cos
4
x
+
sin
2
(
2
x
)
]
=
1
8
[
4
+
4
cos
4
x
+
2
sin
2
(
2
x
)
]
=
1
8
[
4
+
4
cos
4
x
+
1
−
cos
4
x
]
=
1
8
[
5
+
3
cos
4
x
]
=
R
H
S
Following the rules of PEMDAS:
We would do exponents before the division
27 ^ 2 = 729
27 ^ 4 = 531,441
729/531441/3 = 0.000456247 approximately