Answer:
x = - 4, 0, 3, 4
Step-by-step explanation:
Given
f(x) = - 5x(x² - 16)(x - 3) ← x² - 16 is a difference of squares, thus
f(x) = - 5x(x - 4)(x + 4)(x - 3)
To find the zeros, equate f(x) to zero, that is
- 5x(x - 4)(x + 4)(x - 3) = 0
Equate each factor to zero and solve for x
- 5x = 0 ⇒ x = 0
x - 4 = 0 ⇒ x = 4
x + 4 = 0 ⇒ x = - 4
x - 3 = 0 ⇒ x = 3
Thus the zeros are
x = - 4, x = 0, x = 3, x = 4
Answer:
N = 8/4
Step-by-step explanation:
Multiply all terms by n and cancel:
1/2+1/2+1/2=7N
8/7=7n (Simplify both sides of the equation)
7n=8/7/7
-
7
(Divide both sides by 7)
n=
8/49
Answer:
The area of triangle is 
Step-by-step explanation:
It is given that AB=19cm, BC=12cm and ∠B=105°
Now, Area of the triangle ABC=
=
=
=
Thus, the area of triangle is
The number of miles are close to 3.0 or 3.1 the actually measurement is 3.0871212 miles
The equation for this problem would be
x+(x+2)+(x+2+2)=327
3x+2+2+2=327
3x+6=327
3x=321
x= 107
so the answers would be 107, 109 and 111
