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
Amanda [17]
3 years ago
13

Are these answers right

Mathematics
1 answer:
bixtya [17]3 years ago
8 0

yes they are and C has no answer in it and can i have branilest

You might be interested in
You earned $62,715 this year and your Income tax calculator says you owe $8,818 in taxes. But you neglected to deduct $1,000 for
zepelin [54]

Answer: 2,749.50

Step-by-step explanation:

56,715*10.70% = 6068.505

8818 - 6068.505 = 2,749.50

6 0
3 years ago
The principal of a large high school wants to know if students spend more than 1 hour doing homework per night, on average. To i
MrRissso [65]

Answer:

If we define the random variable X ="time spend by the students doign homework"

And we want to tes t is students spend more than 1 hour doing homework per night, on average (alternative hypothesis), so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 1

Alternative hypothesis: \mu >1

And they wnat to use a sample size of n = 100 and a significance level of 0.05

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Solution to the problem

If we define the random variable X ="time spend by the students doign homework"

And we want to tes t is students spend more than 1 hour doing homework per night, on average (alternative hypothesis), so then the system of hypothesis for this case are:

Null hypothesis: \mu \leq 1

Alternative hypothesis: \mu >1

And they wnat to use a sample size of n = 100 and a significance level of 0.05

7 0
3 years ago
Suppose that the perimeter a rectangle is 54 feet, and the length is 13 feet more than the width. Find the width ractangle, in f
Vesnalui [34]

Answer:7feet

Step-by-step explanation:

perimeter(p)=54ft

Width(w) +13=Length(L)

Perimeter=2xLength+2xwidth

P=2xL+2xw

L=w+13

54=2(w+13)+2w

54=2w+26+2w

Collect like terms

54-26=2w+2w

28=4w

Divide both sides by 4

28/4=4w/4

7=w

Width =7feet

8 0
4 years ago
Help it’s confusing
noname [10]

Answer:

I think is C like I said not quite sure...

8 0
3 years ago
Read 2 more answers
The Australian Open is the first of the four Grand Slam professional tennis events held each year. Victoria Azarenka beat Maria
klasskru [66]

Answer:

asnwer is B

Step-by-step explanation:

mark BRAINLIEST

5 0
3 years ago
Other questions:
  • Need HELP!!!!!!!!!!??????
    5·1 answer
  • the ratio to staff to guests at the gala was 3 to 5 . there was a total of576 oeople in the ball room .how many guests were at t
    10·1 answer
  • Oliver read for450 minutes this month. His goal is to read for 10% more minutes next month. If Oliver meets his goal, how many m
    6·2 answers
  • 4. The figure below consists of a square and 2 semicircles, with dimensions as shown. What is the outside perimeter, in centimet
    7·1 answer
  • How do you use a number line to add integers?
    7·1 answer
  • Can someone please explain how to get the answer plzzzzz
    9·1 answer
  • ILL GIVE BRAINLEST, find the value of x
    15·2 answers
  • 2) I am a 5 digit number between 70,000 and 80,000 My hundreds digit is greatest single digit odd number. My thousands digit is
    11·1 answer
  • A smoothie café has the ingredients needed to make
    14·1 answer
  • Find the perimeter and area of the figure shown in the picture. ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!