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Stolb23 [73]
2 years ago
10

Find a polynomial f(x) of degree 4 that has the following zeros. 7, −3, 0, −2

Mathematics
1 answer:
HACTEHA [7]2 years ago
7 0

Answer:

x^4 - 2x^3 - 29x^2 - 42x

Step-by-step explanation:

Equal all the zeros to x then move them over.

x=7,x=-3,x=0,x=-2

x-7,x+3,x+0,x+2

Then multiply each factor

(x-7)(x+3)(x)(x+2)

x^4 - 2x^3 - 29x^2 - 42x

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Y=250+2x is the amount she spends
y=12x is the amount she makes

If the amount she spent = the amount she makes then she break even

250+2x=12x
250=12x-2x
250=10x
So x = 250/10=25 necklaces she needs to sell to break even

Answer is 25 necklaces
3 0
3 years ago
Read 2 more answers
Lance measured 0.485 liters of water. Angel measured 0.5 liters of water. Lance said, "My beaker has more water than yours becau
Advocard [28]
Lance is not correct. Although his number does have more decimal places, his number is not greater. Angel has the greatest number in the most valued place, which is the tenths place in this case. We can understand this by knowing that 5>4. So, Angel has more water, and Lance is incorrect.
3 0
3 years ago
The area of a triangle is 15x^4+3x^3+4x^2-x-3 square meters. The length of the base of the triangle is 6x^2-2 meters. What is th
MArishka [77]

Answer:

The height of the triangle is: H = (5x^2 + x +3)

Step-by-step explanation:

Here, the area the triangle  is given as: 15x^4 + 3x^3 + 4x^2 - x  - 3

Also, base of the triangle  = (6x^2 -2)

Let us assume the height of the triangle = H units

Now, AREA of TRIANGLE =  \frac{1}{2}  \times B  \times H

\implies (15x^4+3x^3+4x^2-x-3 ) = \frac{1}{2}  \times ( 6x^2-2)  \times H\\\implies H =\frac{ (15x^4+3x^3+4x^2-x-3 )}{(3x^2-1)}

Solving by LONG DIVISION, we get:

H = (5x^2 + x +3)

Hence, the height of the triangle is: H = (5x^2 + x +3)

6 0
3 years ago
If the difference a number and four is tripled, the result is six less than the number. Find the number.
Lera25 [3.4K]
3(x-4)=x-6
3x-12=x-6
3x-x = -6+12
2x=6
X= 3
3 0
2 years ago
Need help: find 3x when x=2
viva [34]
It would be 6 because 3x2=6
8 0
3 years ago
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