All categories

3 years ago

Remove all perfect squares from inside the square root 25x^4

1 answer:

5 0

The answer:

the main rule:
for all value positive of a real b, √b²= b, and √b*c= √b * √c, if c is a real positive

let A=√25x^4, we know that 25x^4=5² * x² * x²
therefore,
√25x^4= √5² * x² * x² =√5² √x² √x² = 5* x*x= 5x²

the final answer is A=√25x^4=5x²

You might be interested in

Jeff goes to a theme park to ride the roller coaster. The theme park charges an entry fee in addition to a fee for each roller c

Damm [24]

Entry fee $15 Roller coasters costs $4 each

5 0

4 years ago

Read 2 more answers

Each week, mr. jones goes to the grocery store. mr.jones estimates that he will spend $120 when he goes to the grocery store thi

Aliun [14]

Estimated amount that Mr. Jones thought would be spending each week for grocery = $120
Amount actually spent by Mr.Jones in the grocery store = $94
Error in calculation of the amount of spending = (120 - 94) dollars
   = $26
Percentage error in calculation = (26/120) * 100
   = (13/6) * 10
   = 130/6
   = 21.666 percent
   = 21.67 percent
So there is 21.67% error in the calculation of Mr. Jones. I hope you got the answer you were looking for.

8 0

3 years ago

The spinner shown is spun 5 times. What is the probability that you will spin white exactly 3 times?

telo118 [61]

Answer:

3 / 5

Step-by-step explanation:

Total = 5

Probability of spinning white exactly 3 = 3 / 5

3 0

2 years ago

A number x multiplied by 2/5 is 3/20

svet-max [94.6K]

Compose an equation
2/5x=3/20
Then solve
8/20x=3/20
8x=3
x=3/8
I might be wrong

7 0

4 years ago

Statements that are true for a cylinder with radius r and height h.

vampirchik [111]

Answer:

Only the second and third statements are correct:

Doubling r quadruples the volume.

Doubling h doubles the volume.

Step-by-step explanation:

The volume of a cylinder is given by:

$\displaystyle V=\pi r^2h$

We can go through each statement and examine its validity.

Statement 1)

If the radius is doubled, our new radius is now 2r. Hence, our volume is:

$\displaystyle V=\pi (2r)^2h=4\pi r^2h$

So, compared to the old volume, the new volume is quadrupled the original volume.

Statement 1 is not correct.

Statement 2)

Using the previous reasonsing, Statement 2 is correct.

Statement 3)

If the height is doubled, our new height is now 2h. Hence, our volume is:

$V=\pi r^2(2h)=2\pi r^2h$

So, compared to the old volume, the new volume has been doubled.

Statement 3 is correct.

Statement 4)

Statement 4 is not correct using the previous reasonsing.

Statement 5)

Doubling the radius results in 2r and doubling the height results in 2h. Hence, the new volume is:

$V=\pi (2r)^2(2h)=\pi (4r^2)(2h)=8\pi r^2h$

So, compared to the old volume, the new volume is increased by eight-fold.

Statement 5 is not correct.

7 0

3 years ago