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geniusboy [140]
2 years ago
6

What are all of the real roots of the following polynomial? f(x) = x4 - 24x2 - 25

Mathematics
2 answers:
MrMuchimi2 years ago
5 0
It factors as ...
  f(x) = (x² -25)(x² +1) = (x -5)(x +5)(x² +1)
A root will make one of the factors equal to zero. The quadratic factor has only complex roots.

The real roots are x = ±5.

AfilCa [17]2 years ago
4 0

Answer:

5, -5

Step-by-step explanation:

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Cameron and Logan decided to share a large sub sandwich. Cameron ate 3/6 and Logan 2/6 of the sandwich. How much of the sandwich
torisob [31]

Answer:

Together, the boys ate 5/6 of the sandwich, leaving 1/6 of the sandwich left.

7 0
3 years ago
Solve the system of equations using the linear combination method. {9x+5y=35 2x+5y=0 Enter your answers in the boxes.
Vikentia [17]
9x+ 5y=35
2x + 5y=0    |* -1

9x +5y= 35
-2x  -5y= 0
-----------------
7x /  = 35
x=35:7
x=5

2x+5y=0
2*5+5y=0
10+5y=0
5y=-10
y= -10:5
y=-2
5 0
3 years ago
sid walked 6 miles toward his home which is 3/5 of the total distance. What is the total distance to his home?
tensa zangetsu [6.8K]

Sid walked 6 miles, which is 3/5 of the total distance.

Divide 6 with 3

6/3 = 2

2 miles is the walking distance for 1/5

Multiply 5 to both sides

2 (x 5) = 1/5 (x 5)

10 = 1

The total distance is 10 miles

hope this helps

4 0
3 years ago
Answer the problem :)
Tomtit [17]
The domain is the value of x. In this case, -3≤x≤7
the range is the value of y. in this case, -1≤y≤9

this is not a function, because the same x value has two corresponding y values. For example, when x=5, y=0 or y=8

It IS a function if every x value has only one corresponding y value. 
5 0
2 years ago
What would be the correlation coefficient (r) of the following scatter plot?
luda_lava [24]

Answer:

-0.89 (i think)

Step-by-step explanation:

Since the graph seems to be going downwards from the right, it has a negative correlation. And since the data seems to be pretty close together, the correlation must be strong. That narrows the answer down to -0.89

If its wrong then i'm not a smart person, and it's -0.15

8 0
1 year ago
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