Answer:
x=0 x=9
Step-by-step explanation:
f(x) = x^3 - 9x^2
Set equal to zero to find the zeros
0= x^3 - 9x^2
Factor out x^2
0=x^2 (x-9)
Using the zero product property
0=x^2 0=x-9
x=0 x=9
Divide 4 by 1, you get 4. Divide 120 by 4, get 30. Hope this helped!
Let A be the angle of 79 degrees
B be the angle of (5y-4) degrees
C be the angle of (x+5) degrees
D be the angle of (9z-7) degrees
According to the property of parallelogram
Opposite angles are equal
We get, angle A = angle C
Since angle A = 79 degrees
And angle C = (x+5) degrees
We get, x+5=79
=> x=79-5=74.
Angle B = Angle D
(5y-4)=(9z-7)
Since there’s two variables here, we can’t use the property of “opposite angles are equivalent”
We have to use another property which is adjacent angles are equal
Therefore, we can find angle D
Angle D + Angle A=180
=> 9z-7 =180-79
z=108/9
z=12
Since (5y-4)=(9z-7)
Substitute z=12 in
We get, 5y-4=101
y= 105/5
y= 21
Therefore, x=74, y=21 and z=12.
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