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
nekit [7.7K]
3 years ago
7

The area of David's living room is 18.087 square yards, and their bedroom has an area of 15.78 square yards.Round to the nearest

tenth and estimate the amount of carpet they need to buy. PLZ HELP!!
Mathematics
1 answer:
Darina [25.2K]3 years ago
7 0
Q. The area of David's living room is 18.087 square yards, and their bedroom has an area of 15.78 square yards.Round to the nearest tenth and estimate the amount of carpet they need to buy. PLZ HELP!!

A. 33.867 and rounded is 33.9
You might be interested in
A research team is testing whether a fuel aditive increases a car's gas mileage. The maker of the additive claims that the addit
Thepotemich [5.8K]

Answer:

Yes  there is sufficient evidence to  reject the company's evidence

Step-by-step explanation:

From the question we are told that  

   The sample size is  n =  25

    The mean is  \= x = 5.3 \ mpg

     The standard deviation is  \sigma = 1.8 \  mpg

    The z-score is  z = -1.94

The null hypothesis is  H_o : \mu = 6 \ mpg

The alternative hypothesis is  H_a :  \mu \ne 6

 Generally the p-value is mathematically evaluated as  

           p-value   =  2 * P( Z

From the z table  the area under the normal curve to the left corresponding to    -1.94  is

         P( Z

=>  p-value   =  2 * 0.02619

=>  p-value   =  0.052

Let assume the level of significance is  \alpha = 0.05

 Hence the  p-value > \alpha this mean that

   The  decision rule is  

Fail to reject the null hypothesis

The conclusion is

 There is sufficient evidence to  reject the company's evidence

 

5 0
3 years ago
The two rectanglular plots of land has proportional side lengths.
arsen [322]
The answer should be c

8 0
3 years ago
Read 2 more answers
How many different ways can 25 students line up for lunch?
zheka24 [161]
25!=15,511,210,043,330,985,984,000,000
7 0
3 years ago
Read 2 more answers
Here’s the answer you need to know
vovikov84 [41]
Thank you sooo much Maddi441
8 0
3 years ago
The height of a tree in feet over x years is modeled by the function f(x). f(x)=301+29e−0.5x which statements are true about the
Karo-lina-s [1.5K]
Given this equation:

f(x)=301+29^{-0.5x}

That represents t<span>he height of a tree in feet over (x) years. Let's analyze each statement according to figure 1 that shows the graph of this equation.
</span>
The tree's maximum height is limited to 30 ft.

As shown in figure below, the tree is not limited, so this statement is false.

<span>The tree is initially 2 ft tall

The tree was planted in x = 0, so evaluating the function for this value, we have:

</span>f(0)=301+29^{-0.5(0)}=301+1=302ft
<span>
<span>So, the tree is initially \boxed{302ft} tall.
</span>
Therefore this statement is false.

</span>Between the 5th and 7th years, the tree grows approximately 7 ft.
<span>
if x = 5 then:

</span>f(5)=301+29^{-0.5(5)}=301ft<span>

</span>if x = 7 then:

f(7)=301+29e^{0.5(7)}=301ft

So, between the 5th and 7th years the height of the tree remains constant
:
\Delta=f(7)-f(5)=301-301=0ft

This is also a false statement.

<span>After growing 15 ft, the tree's rate of growth decreases.</span>

It is reasonable to think that the height of this tree finally will be 301ft. Why? well, if x grows without bound, then the term 29^{-\infty} approaches zero.

Therefore this statement is also false.

Conclusion: After being planted this tree won't grow. 


4 0
3 years ago
Read 2 more answers
Other questions:
  • Elena mixes 5 cups of apple juice with 2 cups of sparkling water to make sparkling apple juice for a party she wants to make 35
    10·1 answer
  • Jonna is 4 years older than her brother. Which of the following expressions shows the sum of their ages if b represents Jonna's
    8·1 answer
  • A line segment on a number line has its endpoints at -9 and 6. Find the coordinate of the midpoint of the segment.. . A. 1.5. *
    12·2 answers
  • 14. Of the 400 students in the 8th grade, four-
    9·2 answers
  • Use the substitution x = 2 − cos θ to evaluate the integral ∫ 2 3/2 ( x − 1 3 − x )1 2 dx. Show that, for a &lt; b, ∫ q p ( x −
    14·1 answer
  • Anna charges $8.50 per hour to babysit. How much will she earn in 3,3 1/2,4 hours?
    14·1 answer
  • Some seeds contain fluffy parachute like structure why​
    7·1 answer
  • Corinna has $80. She wants to buy a $245 plane ticket. She will save up her earnings from working at the museum where she earns
    9·1 answer
  • The width of a rectangle room is 80 percent of its length. WHat is the area of the room?
    7·1 answer
  • Question 10 of 10<br> The function F(x) = log5 x is decreasing.<br> A. True<br> B. False<br> SUBMIT
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!