Z + Y = a right angle so need to equal 90 degrees:
Find Z & Y:
2b + 6 + 3b -1 = 90
5b +5 = 90
5b = 85
b = 85/5
b = 17
Z = 2(17) +6 = 34+6 = 40 degrees
Y = 3(17) - 1 = 51 - 1 = 50 degrees
Y & W make a straight line so need to equal 180:
W = 180 - 50 = 130 degrees.
Z & X make a straight line so need to equal 180:
X = 180 - 40 = 140 degree.
Answer:
$150
Step-by-step explanation:
You can do this by forming an equation.
30% = 0.30. Let the original price be x dollars. Then:-
x - 0.30x = 105
0.70x = 105
x = 105/0.70
x = $150
Answer:
Domain:
(
−
∞
,
∞
)
,
{
x
|
x
∈
R
}
(-∞,∞),{x|x∈ℝ}
Range:
[
−
4
,
∞
)
,
{
y
|
y
≥
−
4
}
[-4,∞),{y|y≥-4}
Step-by-step explanation:
Answer:
50th term is 164
Step-by-step explanation:
a(n) = 17 + 3(n - 1)
a(50) = 17 + 3(50-1)
a(50) = 17 + 3(49)
a(50) = 17 + 147
a(50) = 164
X^2 - xy + xy - Y^2
=
X^2 - Y^2