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
dimulka [17.4K]
3 years ago
15

Which expression is equivalent to

Mathematics
2 answers:
Bezzdna [24]3 years ago
7 0

Answer:

The correct answer is option 2.

The equivalent of given expression is,  

3/5x⁶y⁶

Step-by-step explanation:

Identities:

xᵃ/xᵇ = x⁽ᵃ⁻ᵇ⁾

1/x-ᵃ=xᵃ

It is given that,

(-9x⁻¹y⁻⁹)/(-15x⁵y⁻³)

<u>To find the equivalent expression </u>

The expression is,

(-9x⁻¹y⁻⁴)/(-15x⁵y⁹)

By using the above identities we can write,

-9x⁻¹y⁻⁹/-15x⁵y⁻³ = 3/(5x⁽⁵⁺¹⁾y⁽⁹⁻³⁾)

since xᵃ/xᵇ = x⁽ᵃ⁻ᵇ⁾

1/x-ᵃ=xᵃ

-9x⁻¹y⁻⁹/-15x⁵y⁻³  = 3/5x⁶y⁶

Therefore the correct answer is second option.

3/5x⁶y⁶ is the equivalent fraction of given expression.

nirvana33 [79]3 years ago
3 0

For this case, we must find an expression equivalent to:

\frac {-9x ^ {- 1} y ^ {- 9}} {- 15x ^ 5y ^ {- 3}}

By definition of power properties we have:

a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}

Rewriting the previous expression we have:

The "-" are canceled and we take into account that:

\frac {9} {15} = \frac {3} {5}

So:

\frac {3} {5x^5 * x ^ 1 *y ^ 9* y ^ {- 3}} =

According to one of the properties of powers of the same base, we must put the same base and add the exponents:

\frac {3} {5x ^ {5 + 1} * y ^ {9-3}} =\\\frac {3} {5x ^ 6 * y ^ 6}

Answer:

\frac {3} {5x ^ 6 * y ^ 6}

Option B

You might be interested in
Try to fill in the missing numbers
GrogVix [38]

9514 1404 393

Answer:

  [[274][895][136]]

Step-by-step explanation:

Starting with the middle row, we need a product of two single-digit numbers that is between 53-1 = 52 and 53-9 = 44. Possible products are 5×9=45 and 6×8=48. This means the number in the middle position in the left column must be 8 or 5.

The middle number in the left column cannot be 5, because we must be able to get -5 by subtracting that number from a sum that is at least 3 = 1+2. So, the middle number in the left column is 8, the other two numbers in that column are 1 and 2, and the other two numbers in the middle row are 5 and 9.

There is no product of single-digit numbers that is 30-1 = 29, so the upper left number must be 2, and the bottom left number must be 1. The other two numbers on the top row must be 4 and 7, so that row's equation is 2+4×7=30.

The only remaining digits are 3 and 6. In order to have -3 on the bottom row, the equation there must be 1×3-6 = -3. Then the middle digit must be divisible by 3, so must be 9.

Our solution is ...

row 1: 2 + 7 × 4 = 30

row 2: 8 + 9 × 5 = 53

row 3: 1 × 3 - 6 = -3

And that makes the column equations be ...

col 1: 2 - 8 + 1 = -5

col 2: 7 + 9 / 3 = 10

col 3: 4 × 5 - 6 = 14

6 0
3 years ago
Kena calculates that she spends 15% of a school day in science class. If she spends 75 minutes in science class, how many minute
ankoles [38]

Answer:

Step-by-step explanation:

5 0
2 years ago
Kyle is making a frame for a rectangular piece of art. The length of the frame is 3 times the width, as shown below.
NeX [460]

Answer:

3.75 feet

Step-by-step explanation:

The length of the frame is 3 times the width.

Let the width be x.

The length will be 3x.

Kyle uses 10 feet of wood to make the frame. This means that the perimeter is 10 feet.

The perimeter of a rectangle is:

P = 2(L + W)

=> 10 = 2(3x + x)

=> 10/2 = 4x

5 = 4x

=> x = 5/4 = 1.25 feet

The width is 1.25 feet. The length is therefore:

1.25 * 3 = 3.75 feet

5 0
3 years ago
Write the times of four trains as 12 hr. clock<br> a. 14:32<br> b. 16:30<br> c. 06:45<br> d. 10:29
romanna [79]

Answer:

a 2:32

b 4:30

c 6:45

d 10:29

6 0
2 years ago
A hotel house keeper cleaned 1/3 on
Aleksandr-060686 [28]

Answer:

dunno

Step-by-step explanation:

hope this helps has hdhd

3 0
3 years ago
Other questions:
  • at wassamatta university, 55.7% of the student body are males. choose one student at random. what is the probability that the st
    12·2 answers
  • Which answer choice contains only equations? 2 + h = 14 and k minus 25 = 2 c minus 14 and d + 134 10 = 3 + s and 22 minus y 15 +
    10·1 answer
  • The sum of the number as a product of their gcf 27+36
    13·1 answer
  • The height of an object after it is released can be modeled by the function mc016-1.jpg, where t is the number of seconds after
    5·2 answers
  • The area of a square gate is 361 feet squared what is the length of any side of the gate
    12·1 answer
  • 2 (x-8)=12 <br><br> slove for x
    10·2 answers
  • Find the circumference of a circle if the area is 300 square centimeters
    11·1 answer
  • the tickets are 90 dollars in all adults 7 kids 12 kids are 2/3 cost of adults tickets. What is the cost of the adult tickets
    10·1 answer
  • (-q^2 + 3q + 4) - (7q^2 + 7q)
    14·1 answer
  • Solve the system of linear equations 2x + 3y =16.9<br> 5x =y + 7.4
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!