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
kirill [66]
4 years ago
5

Help please exponents

Mathematics
1 answer:
Anon25 [30]4 years ago
6 0
      (2x^3y^2)^-3
= ----------------------
        (3xy)^-3

         (3xy)^3
= ----------------------
     (2x^3y^2)^3

         27x^3y^3
= ----------------------
         8x^9y^6

             27
= ----------------------
         8x^6y^3
You might be interested in
5/2x-7=2/4x+14<br><br>a x = -6<br>b x = 6<br>c x = 8<br>d x = 12​
kykrilka [37]
The answer I got was x= 21/2
3 0
3 years ago
Using the formula r=d/t where d is the distance in miles, r is the rate and t is the time in hours at which rate must you travel
valentina_108 [34]

r =  \frac{337.5}{4.5}  \\ r = 75
the answer is c-75mph
6 0
4 years ago
Read 2 more answers
The length of a quarter is 0.953 inch. round the length of a quarter to the nearest tenth of an inch
liraira [26]

Answer:

1 inch

Step-by-step explanation:

The 9 is in the tenths place so you look to the hundredths place and if the number is greater than or equal to 5 then the 9 can round up.

The hundredths place is 5 so the 9 rounds up and since it can not round up in the tenths place you put the rounding in the front so the answer is 1 inch.

6 0
4 years ago
An unconfined compression test was performed to determine the average strength of concrete cylinders (in psi). It is believed th
Ronch [10]

Answer:

Explained below.

Step-by-step explanation:

(1)

The confidence level is, 91%.

Compute the value of α as follows:

\text{Confidence level}\% =(100-\alpha \%)\\\\91% = 100-\alpha \%\\\\\alpha \%=100-91\%\\\\\alpha \%=9\%\\\\\alpha =0.09

(2)

As the population standard deviation is provided, i.e. <em>σ</em> = 256 psi, the <em>z</em> value would be appropriate.

The <em>z</em> value for α = 0.09 is,

<em>z</em> = 1.69

(3)

Compute the 91% confidence interval as follows:

CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}

     =3000\pm 1.69\cdot\frac{256}{\sqrt{70}}\\\\=3000\pm 51.71\\\\=(2942.29, 3057.71)

(4)

The 91% confidence interval for population mean implies that there is a 0.91 probability that the true value of the mean is included in the interval, (2942.29, 3057.71) psi.

8 0
3 years ago
On a family trip, natalie counted 3 groups of 5 motocycles and additonal 7 solo motocycles. write an expression for the number o
timama [110]
3×5=× would be the answer
4 0
3 years ago
Read 2 more answers
Other questions:
  • sofia bought bananas ,cereal,and milk at the store.She spent all of her money.She spent 3/10 of her money on bananas and 4/10 on
    11·2 answers
  • What number is one hundred more than 197
    15·2 answers
  • Which equation has the steepest graph
    9·1 answer
  • You ride your bike at an average of 12 miles per hour on the way to school, and at an average of 15 miles per hour on the way ho
    15·1 answer
  • If x = 2a - b^2, then b equals
    7·1 answer
  • 11/6 = n + 7/9 so what is n?
    15·2 answers
  • Question in the picture
    10·1 answer
  • A chef mix his salt and pepper. If he put 2/3 cup of salt and 1/2 cup of pepper in his shaker, what is the ratio of salt to pepp
    10·1 answer
  • Please help I was asigned this for how and I am stuck
    8·1 answer
  • Help me solve this please!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!