Answer:
X= -1
Y= -3
Step-by-step explanation:
y=-5x-8
y=4x+1
-5x-8=4x+1
+5x. -1 +5x -1
-9=9x
-1=x
Y=4(-1)+1
-4+1
Y=-3
9514 1404 393
Answer:
b) y=(x+6)^2-32
Step-by-step explanation:
Add and subtract the square of half the x-coefficient to put into vertex form.
f(x) = x^2 +12x +4 . . . . . given
y = x^2 +12x +36 +4 -36 . . . . add and subtract (12/2)^2 = 36
y = (x +6)^2 -32 . . . . . . . . . . . write in vertex form
F=2 Let's solve your equation step-by-step.
f
(
2
)
=
8
(
1
2
)
Step 1: Simplify both sides of the equation.
2
f
=
4
Step 2: Divide both sides by 2.
2
f
2
=
4
2
f
=
2
(X^2+4)(x+2)(x—2)
Hope this helped:)
Answer:
Step-by-step explanation:
Using trigonometric ratio cos.
Here,
- Theta = θ = x
- Adjacent = 12
- Hypotenuse = 28
<h3><u>Finding x:</u></h3>
![\displaystyle cos \theta =\frac{adjacent}{hypotenuse} \\\\cos \ x =\frac{12}{28} \\\\cos \ x = 0.43\\\\x = cos^{-1} 0.43\\\\x = 65 \textdegree\\\\\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20cos%20%5Ctheta%20%3D%5Cfrac%7Badjacent%7D%7Bhypotenuse%7D%20%5C%5C%5C%5Ccos%20%5C%20x%20%3D%5Cfrac%7B12%7D%7B28%7D%20%5C%5C%5C%5Ccos%20%5C%20x%20%3D%200.43%5C%5C%5C%5Cx%20%3D%20cos%5E%7B-1%7D%200.43%5C%5C%5C%5Cx%20%3D%2065%20%5Ctextdegree%5C%5C%5C%5C%5Crule%5B225%5D%7B225%7D%7B2%7D)
