138° + w° = 180° (sum of angle on a straight line)
w° = 180° - 138°
w = 42
19° + x° + w° = 90°
sub. in w=42,
19° + x° + 42° = 90°
x° = 90° - 19° - 42°
x° = 29°
x = 29
(X+2)^2-4 = (X+2)(x+2)-4
Factor:
X^2+4x+4-4
X^2+4x
X(x+4)
X=0, x=-4
Answer:
w = -1/5
OR
w = -3
Step-by-step explanation:
Given equation:
−16w-3 = 5w²
Solution:
Subtracting 5w^2 from both sides,we get
- -16w-3-5w² = 5w² - 5w²
- -5w²-16w-3=0
Factor the LHS of this equation using middle term factor:
Now,
Solving for equation 1:
Solving for equation 2:
Answer:
your answer should be 7 or 7.5 minutes.
Step-by-step explanation:
Hope this helps and have a great day
((x+2)(x+2))-((x-5)(1))=A
x^2+4x+4-x+5=A
x^2+3x+9=A