M²+8m+16=45
m²+8m-29=0
D=64+4*29=180
m₁=(-8+√180)/2=2.7
m₂=(-8-√180)/2=-10.7
m₁=2.7
m₂=-10.7
Answer:
Total hair cut off = 
Step-by-step explanation:
Given - Ameen went to the salon and had 
of an inch of hair cut off. The next day she went back and asked for another 
of an inch to be cut off.
To find - How much hair did she have cut off in all?
Proof -
Given that,
Firstly,
She cut off her hair =
Then,
She cut off her hair =
So,
Total hair cut off = +
= 
=
⇒Total hair cut off =
43x5= 215
215 pupils
215-200=15
15 seats
Most of the information's necessary for solving this problem is already given in the question.
Let us assume the number to be = x
Then
25% * x = 19
(25/100) * x = 19
x/4 = 19
x = 19 * 4
= 76
So the unknown number is 76. I hope there is no complexity in the method described above and also the procedure is clear enough for you to understand. You can use this method for solving similar type of problems in future without requiring any additional help from outside.
Answer:
y-intercept=(0, 3) slope=-2
hope this help
Step-by-step explanation:
