Answer:
x = - 1, x = 1, x = 2
Step-by-step explanation:
The coefficients of the polynomial sum to zero, that is
- 1 + 2 + 1 - 2 = 0
This indicates that x = 1 is a zero
let x = - 1, then
- (- 1)³ + 2(- 1)² + (- 1) - 2 = 1 + 2 - 1 - 2 = 0
Thus x = - 1 is a zero
let x = 2
- (2)³ + 2(2)² + 2 - 2 = - 8 + 8 + 2 - 2 = 0
Thus x = 2 is a zero
The 3 zeros are x = - 1, x = 1, x = 2
Answer:
y = - 10
Step-by-step explanation:
Given
y - 3 = - 3y - 43 ( add 3y to both sides )
4y - 3 = - 43 ( add 3 to both sides )
4y = - 40 ( divide both sides by 4 )
y = - 10
Answer:
x=4
Step-by-step explanation:
Explanation:
As
x
and
y
are inversely proportional, the equation can be represented as
x
=
k
y
.
Substituting
x
=
2
and
y
=
12
, we get
2
=
k
12
=>
k
=
12
⋅
2
=>
k
=
24
.
Equation can be represented as
x
=
24
y
. So, when
y
=
6
, we get
x
=
24
6
=>
x
=
4
The answer is 10-2i. Solve whats it the second parenthesis, remove the first parenthesis, and then add the 2 (from -3+1)
Answer: 18
Step-by-step explanation:
Using the Triangular Prism formula,
V=A (sub)B(sub) h
Solving for A (sub)B(sub)
A (sub)B(sub) = V/h = 162/9 = 18
Hope this helps...