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
AleksandrR [38]
2 years ago
7

8. Which expression is equivalent to

Mathematics
1 answer:
Ksju [112]2 years ago
5 0

Answer:

option 3

Step-by-step explanation:

\dfrac{a^{m}}{a^{n}}=a^{m-n}\\\\

\dfrac{12x^{4}}{4x^{16}}=3x^{4-16}

You might be interested in
Use decimals to spray is 0.719 in expanded form
miss Akunina [59]
The answer would be 0.+0.7+0.01+0.009 hope it helps
6 0
3 years ago
Need help with my homework ​
Volgvan

Answer:

\displaystyle y=\frac{16-9x^3}{2x^3 - 3}

\displaystyle y=-\frac{56}{13}

Step-by-step explanation:

<u>Equation Solving</u>

We are given the equation:

\displaystyle x=\sqrt[3]{\frac{3y+16}{2y+9}}

i)

To make y as a subject, we need to isolate y, that is, leaving it alone in the left side of the equation, and an expression with no y's to the right side.

We have to make it in steps like follows.

Cube both sides:

\displaystyle x^3=\left(\sqrt[3]{\frac{3y+16}{2y+9}}\right)^3

Simplify the radical with the cube:

\displaystyle x^3=\frac{3y+16}{2y+9}

Multiply by 2y+9

\displaystyle x^3(2y+9)=\frac{3y+16}{2y+9}(2y+9)

Simplify:

\displaystyle x^3(2y+9)=3y+16

Operate the parentheses:

\displaystyle x^3(2y)+x^3(9)=3y+16

\displaystyle 2x^3y+9x^3=3y+16

Subtract 3y and 9x^3:

\displaystyle 2x^3y - 3y=16-9x^3

Factor y out of the left side:

\displaystyle y(2x^3 - 3)=16-9x^3

Divide by 2x^3 - 3:

\mathbf{\displaystyle y=\frac{16-9x^3}{2x^3 - 3}}

ii) To find y when x=2, substitute:

\displaystyle y=\frac{16-9\cdot 2^3}{2\cdot 2^3 - 3}

\displaystyle y=\frac{16-9\cdot 8}{2\cdot 8 - 3}

\displaystyle y=\frac{16-72}{16- 3}

\displaystyle y=\frac{-56}{13}

\mathbf{\displaystyle y=-\frac{56}{13}}

8 0
3 years ago
A girl scout troop sold cookies. If the girls sold 5 more boxes the second week than they did the first, and if they double the
valina [46]

Answer:

Boxes sold first week = 104

Boxes sold second week =x+5= 104+5=109

Boxes sold third  week = 109 times 2= 218

Step-by-step explanation:

Let x be the number of boxes sold in first week

the girls sold 5 more boxes the second week

So number of boxes sold in second week is x+5

they double the sales of the second week for the third week

So number of boxes sold in third week is 2 (x+5)

Total boxes sold is 431

x+x+5+2(x+5)=431

x+x+5+2x+10=431

4x+15=431

subtract 15 from both sides

4x=416

divide by 4 on both sides

x=104

Boxes sold first week = 104

Boxes sold second week =x+5= 104+5=109

Boxes sold third  week = 104 times 2= 218

4 0
3 years ago
During a three-day period, the stock of Money, Inc. gained 6 points, lost 10 points, and gained 2 points. What was the total cha
hjlf
It didn’t have no gaining
4 0
3 years ago
Read 2 more answers
Whats the best ship-name for Matthew and Averie and whats 134x3
Anarel [89]
Mathrie 134x3= 402 ship names are my specialty:)
7 0
3 years ago
Other questions:
  • Hello someone help please <br>what is the product of (cosA+2)(cosA-3)​
    8·1 answer
  • Ieryl spends a total of $68.82 for 2 pairs of sneakers
    5·1 answer
  • Help with this please its easy, trust me!
    9·1 answer
  • X - 12.3 = 8.7<br><br> what is x?
    14·2 answers
  • Which statements are correct? Check all that apply.?
    6·1 answer
  • At a local fair, a hamburger cost $2.50, and a drink cost $1.50. Write an expression that represents the cost of x number of ham
    15·2 answers
  • What integer value of n will satisfy n + 10 &gt; 11 and -4n &gt; -12?
    9·1 answer
  • The distance from the earth to the sun is about 9.3 x 107 miles.
    6·1 answer
  • Can I get some help with these questions?​
    6·1 answer
  • How much on average did she make a week, if she worked 15 hours a week at $11/hour? (Rounded to the nearest whole dollar. Do NOT
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!