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
zhannawk [14.2K]
2 years ago
5

use inverse operations to solve each equation. Explain each step and identify the property used to reach step.

Mathematics
1 answer:
Allushta [10]2 years ago
8 0
Ok so what u have to do is add 8 to the 8 and 19 then the two eights get you to a zero then add 19 + 8 and you get 

27 ÷ h/3 

the do inverse fraction so do 3/1 times h/3 get zero then 27 times 3/1 and get 

81 

answer is 81

You might be interested in
Passing through 1,-4 and -2,5
Nataly_w [17]

Answer:

If you are looking for the slope-intercept equation, it's y=−3x−1. Hope you have a great rest of the day and stay safe, be kind, and go beyond Plus Ultra!

4 0
2 years ago
A Survey of 85 company employees shows that the mean length of the Christmas vacation was 4.5 days, with a standard deviation of
GenaCL600 [577]

Answer:

The 95% confidence interval for the population's mean length of vacation, in days, is (4.24, 4.76).

The 92% confidence interval for the population's mean length of vacation, in days, is (4.27, 4.73).

Step-by-step explanation:

We have the standard deviations for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 85 - 1 = 84

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 84 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 1.989.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.989\frac{1.2}{\sqrt{85}} = 0.26

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 4.5 - 0.26 = 4.24 days

The upper end of the interval is the sample mean added to M. So it is 4.5 + 0.26 = 4.76 days

The 95% confidence interval for the population's mean length of vacation, in days, is (4.24, 4.76).

92% confidence interval:

Following the sample logic, the critical value is 1.772. So

M = T\frac{s}{\sqrt{n}} = 1.772\frac{1.2}{\sqrt{85}} = 0.23

The lower end of the interval is the sample mean subtracted by M. So it is 4.5 - 0.23 = 4.27 days

The upper end of the interval is the sample mean added to M. So it is 4.5 + 0.23 = 4.73 days

The 92% confidence interval for the population's mean length of vacation, in days, is (4.27, 4.73).

8 0
3 years ago
Mike wants to make meatloaf. His recipe uses a total of 7 pounds of meat. If he uses a 3 to 1 ratio of beef to pork, how much po
SSSSS [86.1K]
Total meat in the recipe  he wants to use  = 7 pounds

Beef : pork    =    3  : 1

Total pork that he will use =      \frac{1}{3+1} x 7 pounds

= 7/4 pounds

hope this helps
6 0
2 years ago
if you flip a coin 10 times, what is the best prediction​ possible for the number of times it will land on heads?
SVETLANKA909090 [29]
Proabably. 5 because if there is 2 sides on a coin then you should divide 10÷2 which is 5.
4 0
2 years ago
Read 2 more answers
Which numerical expression represents the value (in cents) of 12 dimes?
bekas [8.4K]
B is the answer since dimes are worth 10 cents
4 0
3 years ago
Read 2 more answers
Other questions:
  • 1.Which statement correctly describes the relationship between the graph of f(x)=4xf(x)=4x and the graph of g(x)=f(x)+3g(x)=f(x)
    7·2 answers
  • If a train stops at 0600 hours and begins at 0100 hours how many are left until a day?
    9·2 answers
  • -3x - 5(3x - 26) =238
    11·2 answers
  • 15 &lt; x-3<br> What the answer
    12·2 answers
  • How to do this and steps?
    9·1 answer
  • The width of a rectangle is 7 meters greater than its length
    11·1 answer
  • A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before​ treatment, 2
    12·1 answer
  • Plz help me solve this question ASAP!<br><br> R=200/(1-(1.011)^-20/0.011)
    7·1 answer
  • Triangles ABC and DEF are similar <br><br><br>find the length of segment DF​
    12·1 answer
  • What is the twentieth term in the sequence 23, 43, 63, 83 …?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!