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ozzi
3 years ago
6

The expression x4 + 6x3 – 11x2 – 60x + 100 is equivalent to (x – 2)(x – 2)(x + 5)(x + 5). At what points does the graph of the f

unction f(x) = x4 + 6x3 – 11x2 – 60x + 100 intersect the x-axis?
Mathematics
2 answers:
telo118 [61]3 years ago
8 0

Answer:

(2,0) and (-5,0)

Step-by-step explanation:

Since, if (x-a) is the factor of a polynomial then the graph of the polynomial intersects the x-axis at (a,0).

Here, the given polynomial,

x^4+6x^3-11x^2-60x+100

According to the question,

x^4+6x^3-11x^2-60x+100=(x-2)(x-2)(x+5)(x+5)

⇒ (x-2) and (x+5) are the factors of the given polynomial,

By the above statement,

The points at which the graph of the given function intersects the x-axis are,

(2,0) and (-5,0)

nikdorinn [45]3 years ago
6 0
Since y equals the product of the factors, any value for x which makes any factor equal to zero is a point where the graph touches the x-axis.

x=-5 and 2  (technically the points (-5,0) and (2,0))
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Solve the compound inequality.<br> 3x + 1 &lt;4 or 9x &gt; 31
WINSTONCH [101]

Answer:

Step-by-step explanation:

3x < 4 - 1   or x > 31/9

3x < 3 or x > 31/9

x < 1  or x > 31/9

7 0
2 years ago
Y= -0.25x + 4.7<br> Y=4.9x - 1.64
Andreas93 [3]

Answer:

The answer would be (1.23, 4.39)

Step-by-step explanation:

Because they are both equal to y, we can set the equations equal to each other and then solve.

4.9x - 1.64 = -0.25x + 4.7

5.15x - 1.64 = 4.7

5.15x = 6.34

x = 1.23

Now that we have the value for x, we can plug into either equation and find y.

y = -0.25x + 4.7

y = -0.25(1.23) + 4.7

y = -.31 + 4.7

y = 4.39

3 0
3 years ago
A rectangle and a square have the same area. The length of the rectangle is seventy feet more than two times its width. The leng
Zanzabum

Using the side of the square find the area:

Area = 30^2 = 900 square feet.

The rectangles area is the same, 900 square feet.

Let the width = X

The length would be 2X + 70

Area = length x width

X * 2x+ 70 = 900

This expands to 2x^2 * 70x = 900

Use the quadratic formula to solve for x:

-70 +/- sqrt(70^2-4*2(-900))/2*2

X = 10

Width = x = 10 feet

Length = 2x + 70 = 90 feet

8 0
2 years ago
Help
enyata [817]
The answer is a hope this helps 
5 0
3 years ago
Read 2 more answers
Find the quotient......
Nataliya [291]
The quotient to this problem is 401.45

Just divide 8,029 by 20 to find the quotient.
7 0
3 years ago
Read 2 more answers
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