1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
garri49 [273]
3 years ago
7

Can someone please explain this.

Mathematics
1 answer:
Vitek1552 [10]3 years ago
5 0

Answer:

The correct option is option A

Step-by-step explanation:

We have the following expression:

sqrt(18x^3) - sqrt(9x^3) + 3sqrt(x^3) - sqrt(2x^3)

We know that sqrt(a*b) = sqrt(a)sqrt(b)

Applying this, we have:

sqrt(18)sqrt(x^3) - 3sqrt(x^3) + 3sqrt(x^3) - sqrt(2)sqrt(x^3)

sqrt(x^3)[ sqrt(18) - sqrt(2)]

sqrt(x^3)[ 3sqrt(2)- sqrt(2)]

sqrt(x^3)[2sqrt(2)]

Then we now that:

sqrt(x^3)[2sqrt(2)] = 2x*sqrt(2x)

The correct option is option A

You might be interested in
Rufus appears before Bill and Ted and offers them a bogus proposition: they must paint a house together with their magical guita
jolli1 [7]

Answer:

6.79

Step-by-step explanation:

-Let X denote the total amount of the job.

-The job has to be done in 5 hrs, therefore the portion done every hour is:

Rate=\frac{Total}{Time}\\\\=\frac{X}{5}\\\\=\frac{1}{5}X=0.2X

Therefore, the rate of Bill and Ted working jointly must equal the rate calculated above:

R_{Bill}=\frac{X}{19}\\\\=\frac{1}{19}X\\\\R_{Bill}+R_{Ted}=R_{required}\\\\\frac{1}{19}X+R_{Ted}=\frac{1}{5}X\\\\R_{Ted}=\frac{1}{5}X-\frac{1}{19}X\\\\=\frac{14}{95}X\\\\\therefore \frac{14}{95}X=1\ hr\\\\X=1\div \frac{14}{95}\\\\=6.7857\approx 6.79hrs

Hence, Bill working alone should complete the house in 6.79 hrs

6 0
3 years ago
Anybody know how to solve this?
avanturin [10]
The answer would be A. I just did this yesterday. Do you want the steps?

4 0
3 years ago
Read 2 more answers
The number 8,046 can be modeled using base ten blocks. How many of each type of block are needed to build the number?
MArishka [77]

Answer:

the first one

Step-by-step explanation:

8 one thousand block is 8000

0 hundreds 000

4 tens. 40

6 ones. 6

8046

7 0
3 years ago
Read 2 more answers
The perimeter of a rectangular field is 302 yards. If the width of the field is 65 yards, what is its length?​
Molodets [167]

Answer:

L= 86 yards

Step-by-step explanation:

Perimeter = 2length + 2width

So,

302= 65(2) + 2(L)

302= 130+2L

-130

172=2L

Length= 86

7 0
3 years ago
are there any other considerations that should be taken into account when trying to fit a giant tv into your car
FrozenT [24]
The width and height of the tv as well as the length and width of the back of your car
6 0
3 years ago
Other questions:
  • Elizabeth mowed 6 lawns in 9 hours. What was her rate of mowing in hours per lawn? Express your answer in simplest form.​
    13·2 answers
  • Show all caclulations for credit! The coordinates of the vertices of triangle ABC are A(-1,3), B(1,2) and C(-3,-1). Determine th
    6·1 answer
  • The area of a square can be found using the equation A = s², where A is the area and s is the measure of one side of the square.
    13·2 answers
  • Describe the error in finding the product (big ideas math)
    8·1 answer
  • POINTS GIVEN HELP ME PLS POINTS WILL BE GUVEN
    7·1 answer
  • How many small cubes are needed to make the large figure shown below?
    5·1 answer
  • Otld7dlyzotzfkztkzk​
    12·1 answer
  • Find the area of the hexagon. i will mark brainliest and pls explain.
    11·1 answer
  • Choose the correct statement consider to expression
    9·2 answers
  • What is the recursive formula for each arithmetic sequence. -5,-8.5,-12,-15.5,-19
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!