Answer:
A quadratic equation is some thing like
(x+2)^2
or
(x+2)(x+5)
In order to solve them, the most basic method is the FOIL method
F-First
O-Outside
I-Inner
L-Last
So for example
(x+2)^2
Which is basically
(x+2)(x+2)
So the first is the 2 Xs
(x+2)(x+2)
x*x=x^2
The outer is the x and the 2,
(x+2)(x+2)
2*x=2x
Now the Inner which is the 2 and the x
(x+2)(x+2)
2*x=2x
And finally the last which is the 2 and the second 2
(x+2)(x+2)
2*2=4
Now add them all up
X^2+2x+2x+4
Combine like terms
x^2+4x+4
There you have it
Do the same with every other quadratic equation
what shape is this
I cant answer it if there's no shape in the question
Answer:
that would be b
Step-by-step explanation:
The angle of depression from the top of the flag pole to point A is 36.2 degrees.
<h3>What is the angle of depression?</h3>
From trigonometric ratio: cos(θ) = Adjacent / Hypotenuse
Given that;
- Adjacent = 25ft
- Hypotenuse = 31ft
- Angle of depression θ = ?
cos(θ) = Adjacent / Hypotenuse
Cos(θ) = 25ft/31ft
Cos(θ) = 0.80645
θ = cos⁻¹( 0.80645 )
θ = 36.2°
Therefore, the angle of depression from the top of the flag pole to point A is 36.2 degrees.
Learn more about angle of depression here: brainly.com/question/11348232
#SPJ1
