Answer:
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Step-by-step explanation:
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*Can someone show the work I have the answers
The zeros of a function are the points where the function cross the x-axis.
One other zero of is 2 + 3i.
The zero of is given as:
The above number is a complex number.
If a complex number a + bi is the zero of a function f(x), then the conjugate a - bi is also the zero of f(x).
This means that, one other zero of is 2 + 3i.
Read more about zeros of functions at:
Answer:
One other zero is 2+3i
Step-by-step explanation:
If 2-3i is a zero and all the coefficients of the polynomial function is real, then the conjugate of 2-3i is also a zero.
The conjugate of (a+b) is (a-b).
The conjugate of (a-b) is (a+b).
The conjugate of (2-3i) is (2+3i) so 2+3i is also a zero.
Ok so we have two zeros 2-3i and 2+3i.
This means that (x-(2-3i)) and (x-(2+3i)) are factors of the given polynomial.
I'm going to find the product of these factors (x-(2-3i)) and (x-(2+3i)).
(x-(2-3i))(x-(2+3i))
Foil!
First: x(x)=x^2
Outer: x*-(2+3i)=-x(2+3i)
Inner: -(2-3i)(x)=-x(2-3i)
Last: (2-3i)(2+3i)=4-9i^2 (You can just do first and last when multiplying conjugates)
---------------------------------Add together:
x^2 + -x(2+3i) + -x(2-3i) + (4-9i^2)
Simplifying:
x^2-2x-3ix-2x+3ix+4+9 (since i^2=-1)
x^2-4x+13 (since -3ix+3ix=0)
So x^2-4x+13 is a factor of the given polynomial.
I'm going to do long division to find another factor.
Hopefully we get a remainder of 0 because we are saying it is a factor of the given polynomial.
x^2+1
---------------------------------------
x^2-4x+13| x^4-4x^3+14x^2-4x+13
-( x^4-4x^3+ 13x^2)
------------------------------------------
x^2-4x+13
-(x^2-4x+13)
-----------------
0
So the other factor is x^2+1.
To find the zeros of x^2+1, you set x^2+1 to 0 and solve for x.
So the zeros are i, -i , 2-3i , 2+3i
A. 0
B. 1
C. 2
D. 3
Same question.
6 • 7 – 5x + x2 ≥ x3 + x2
A. 5
B. 6
C. 4
D. 3
Which symbol creates a true sentence when x equals 3?
8 • 3 – 4x _____ 7(10 – x)
A. >
B. <
C. =
D. ≈
Which symbol creates a true sentence when x equals 8?
9 • 4 – 2x _____ 5(11– x)
A. =
B. >
C. <
D. ≈
Please help me A.S.Y.C.
we know that
The easiest way to find the number that makes the statement true is to substitute the given answers into the equation.
so
Part 1)
a) For
-----> is false
b) For
-----> is false
c) For
-----> is false
d) For
-----> is true
therefore
the answer part 1) is the option D
Part 2)
a) For
----> is false
b) For
----> is false
c) For
----> is false
d) For
----> is True
therefore
the answer Part 2) is the option D
Part 3)
we have
For
we know that
therefore
the answer Part 3) is the option B
Part 4)
we have
For
we know that
therefore
the answer Part 4) is the option B
Answer:
It would take 6 minutes to purify enough water.
Step-by-step explanation:
Water purifier will purify 1 liter of water in 1 minute.
Terrell needs enough water for 4 canteens that each hold 750 ml.
Water for 4 canteens = 750 ml × 4 = 3000 ml = 3 liters
water for 2 canteens = 1.5 L × 2 = 3 liters
Water for total canteens = 3 + 3 = 6 liters.
Now it is given that water purifier will purify 1 liter of water in 1 minutes so 6 liters of water will purify in 6 minutes.
What is the volume of the cone ?
Answer:
v=112/3picm^3
Step-by-step explanation: