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
AnnZ [28]
2 years ago
13

Which expression is equivalent to b^-3/ab^-3?

Mathematics
1 answer:
Mrrafil [7]2 years ago
7 0
1/a

The b^-3 in the denominator and numerator cancel out
You might be interested in
Help please it is graphing
Alja [10]

Here are the pairs:

(from the left)

First group: 3rd graph, y = x - 2, table g

Second group: 2nd graph, y = 2x, table b

Third group: 1st graph, y = x + 2, table m

4 0
3 years ago
Adam has 250.24 to split between his two credit card bills. How much money will he pay on each bill?
maxonik [38]

Answer:

125.12 on each bill

Step-by-step explanation:

250.24 divided by 2 = 125.12

7 0
2 years ago
Read 2 more answers
Which choices are equivalent to the expression below
arsen [322]

Answer:

Gotta give the image

Step-by-step explanation:

Bdndbdjddbdhd dvdn d dbd

4 0
2 years ago
• A researcher claims that less than 40% of U.S. cell phone owners use their phone for most of their online browsing. In a rando
antiseptic1488 [7]

Answer:

We failed to reject H₀

Z > -1.645

-1.84 > -1.645

We failed to reject H₀

p > α

0.03 > 0.01

We do not have significant evidence at a 1% significance level to claim that less than 40% of U.S. cell phone owners use their phones for most of their online browsing.

Step-by-step explanation:

Set up hypotheses:

Null hypotheses = H₀: p = 0.40

Alternate hypotheses = H₁: p < 0.40

Determine the level of significance and Z-score:

Given level of significance = 1% = 0.01

Since it is a lower tailed test,

Z-score = -2.33 (lower tailed)

Determine type of test:

Since the alternate hypothesis states that less than 40% of U.S. cell phone owners use their phone for most of their online browsing, therefore we will use a lower tailed test.

Select the test statistic:  

Since the sample size is quite large (n > 30) therefore, we will use Z-distribution.

Set up decision rule:

Since it is a lower tailed test, using a Z statistic at a significance level of 1%

We Reject H₀ if Z < -1.645

We Reject H₀ if p ≤ α

Compute the test statistic:

$ Z =  \frac{\hat{p} - p}{ \sqrt{\frac{p(1-p)}{n} }}  $

$ Z =  \frac{0.31 - 0.40}{ \sqrt{\frac{0.40(1-0.40)}{100} }}  $

$ Z =  \frac{- 0.09}{ 0.048989 }  $

Z = - 1.84

From the z-table, the p-value corresponding to the test statistic -1.84 is

p = 0.03288

Conclusion:

We failed to reject H₀

Z > -1.645

-1.84 > -1.645

We failed to reject H₀

p >  α

0.03 > 0.01

We do not have significant evidence at a 1% significance level to claim that less than 40% of U.S. cell phone owners use their phones for most of their online browsing.

8 0
3 years ago
Can someone please help me on this question?
katovenus [111]

Answer:Hope this helps

6n=-3n-18

9n=-18

n=-2

3 0
2 years ago
Read 2 more answers
Other questions:
  • What is the solution to the equation 2n/3 = n+14/5
    10·2 answers
  • Find the​ slope-intercept form of the line whose slope is 5 and that passes through the point left (-2,8)
    8·1 answer
  • Complete the pattern 43,37,31,25
    12·1 answer
  • [2(cos15° + isin15°)]^4
    10·1 answer
  • Select the correct answer.<br> Which sum or difference is modeled by the algebra tiles?
    12·2 answers
  • MZYX=pi/3 radians. Covert this radian measure to its equivalent degree measure.
    7·1 answer
  • Solve and show your work below: Julie And Paulo are building a treehouse. Julie has a wood board that is 1.15 meters long and Pa
    12·1 answer
  • Which of the following is a correct interpretation of the expression -4- (-7)?
    9·1 answer
  • 10. Find <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bd%5E%7B2%7D%7D%7Bd%20x%5E%7B2%7D%7D%5Cint%20%5Ex_0%5Cleft%28%5Cint%20%5E%7B
    10·1 answer
  • In figure 2, find x if the perimeter is 4. Does each answer make sense? Why or why not?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!