All categories

2 years ago

What would make the bottom = 0

Mathematics

1 answer:

Minchanka [31]2 years ago

6 0

So you need x^5 - 81x = 0
x^5 - 81x = 0
Divide both sides by x
x^4 -81 = 0
Add both sides by 81
x^4 = 81
Take the 4th root of both sides
x = 3

That's your answer.

x = 0 would also work, which is another possible answer.

Have an awesome day!

From your friendly Helper-in-Training, collinjun0827

P.S. Instead of saying "bottom", say "denominator"

You might be interested in

What is the value of x? A. 3 B. 9 C. 15 D. 30

ra1l [238]

Answer:

C. 15

Step-by-step explanation:

Assuming that these segments formed from each parallel line are proportional, x/5 = x-6/3.

Now cross multiply by multiplying each denominator by the opposite numerator, this is so the denominators or bottom numbers of each fraction will cancel.

x/5 = x–6/3 → (3)(x/5) = (3)(x–6/3) → 3x/5 = x–6 →

(5)(3x/5) = (5)(x–6) → 3x = 5(x–6) → 3x = 5x – 30.

The last step is to do the basic algebra to find x:

3x = 5x – 30

–5x –5x

[5x will cancel when you subtract both sides by 5x]

-2x = -30

(-1) (-1)

[2 negatives make a positive when -1 is multiplied by an expression with a negative coefficient]

2x = 30

÷2 ÷2

[divide both sides by 2 to simplify 2x to x]

x = 15

_____

You can also check that both sides are proportional because

5 → x

x = 15

5 → 15

3 → x – 6

x = 15

3 → 9

5 × 3 = 15

3 × 3 = 9

7 0

2 years ago

What is an equivalent expression for 4y plus y

RideAnS [48]

4y plus y

= 4y + y

= 5y

5 0

3 years ago

10.A water tank has strps inside it. A monkeyis sitting on topmost floor(i.e.,the first step).The water level is at ninth step.

soldi70 [24.7K]

Answer:

7 steps.

Step-by-step explanation:

Since the monkey is sitting on the first step already you can subtract 9 by 1 to find the amount of steps left.

9-1 = 8 steps left

The monkey jumps 3 steps down

8-3= 5 steps

Then jumps 2 steps up

5 + 2 = 7 steps

The monkey has 7 more steps until he reaches the water level.

3 0

2 years ago

Which equation represents the axis of symmetry of the function y= -2x^2 + 4x -6?

daser333 [38]

Answer:

The axis of symmetry is on x = 1

Step-by-step explanation:

When you graph the function, the vertex is at (1,-4). This means that the axis of symmetry is at x = 1

If this answer is correct, please make me Brainliest!

7 0

3 years ago

Describe a sequence of translations, rotations, and reflections that takes Polygon P to Polygon Q.

MaRussiya [10]

Answer:

TRAIN TRACKS!!!!

Step-by-step explanation:

on edge

6 0

2 years ago