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
KengaRu [80]
3 years ago
7

How much force is required to push a 135-pound sofa across a wood floor

Mathematics
1 answer:
masya89 [10]3 years ago
5 0
Enough force to push 135 pounds

You might be interested in
The formula equals 16t squared is used to approximate the distance​ s, in​ feet, that an object falls freely from rest in t seco
Brut [27]
The equation is actually h(t)=-16t^2+1437.  Free fall is always -16t^2 as the position function.  We are looking for how long it takes the object to hit the ground.  In other words, the height of an object is 0 when it is laying on the ground, so how long (t) did it take to get there? We will then set that position equal to 0 and solve for t.  0=-16t^2+1437.  If we subtract 1437 from both sides and divide by -16, we have t^2=89.8125.  Taking the square root of both sides gives us, rounded to the nearest tenth, t = 9.5 or t=-9.5.  The 2 things in math that will never EVER be negative are time and distance/length, so -9.5 is out.  That means that it took just about 9.5 seconds for the object to fall to the ground from a height of 1437 feet when pulled on by the force of gravity.
6 0
3 years ago
Meryl needs to cut down 10.5 trees for every 5 cabins she builds.
Zepler [3.9K]

Answer:

for seven cabins it should be 14.7 trees, im not sure about 3 cabins, sorry :(

5 0
3 years ago
Read 2 more answers
which function has only one x-intercept at (−6, 0)? f(x) = x(x − 6) f(x) = (x − 6)(x − 6) f(x) = (x 6)(x − 6) f(x) = (x 6)(x 6)
3241004551 [841]
<span>We have the function: f ( x ) = ( x + 6 ) ( x + 6 ) = ( x + 6 )^2. This is the square of the binomial. It has only one zero ( only one x- intercept ). When f ( x ) = 0, ( x + 6 )^2 = 0. x + 6 = 0; x = - 6. Therefore point ( - 6 , 0 ) is the only x - intercept. Answer: D ) f ( x ) = ( x + 6 ) ( x + 6 ).</span>
3 0
3 years ago
Read 2 more answers
Julio wants to calculate 200,000 × 300,000. When he used his calculator to multiply, it showed the result below:
Eddi Din [679]
The answer to this question is C
5 0
3 years ago
Read 2 more answers
The radius of a circle is decreasing at a rate of 6.56.56, point, 5 meters per minute. At a certain instant, the radius is 12121
Ilia_Sergeevich [38]

Answer:

The rate of change of the area of the circle is  approximately -490.09 \ m^2/min.

Step-by-step explanation:

Given:

\frac{dr}{dt} = -6.5 \ m/min

radius r =12 \ m

We need to find the rate of change of the area of the circle at that instant.

Solution:

Now we know that;

Area of the circle is given by π times square of the radius.

framing in equation form we get;

A= \pi r^2

to find the rate of change of the area of the circle at that instant we need to take the derivative on both side.

\frac{dA}{dt}=\frac{d(\pi r^2)}{dt}\\\\\frac{dA}{dt}= 2\pi r \frac{dr}{dt}

Substituting the given values we get;

\frac{dA}{dt}= 2\times \pi \times 12 \times -6.5\\\\\frac{dA}{dt}\approx -490.09 \ m^2/min

Hence The rate of change of the area of the circle is  approximately -490.09 \ m^2/min.

6 0
3 years ago
Other questions:
  • Alejandra correctly wrote the equation y – 3 = 1/5 (x – 10) to represent a line that her teacher sketched. The teacher then chan
    5·2 answers
  • HELPPPPPPPPP ! In circle O, what is measure of Arc AE? A. 84 B. 96 C. 120 D. 168 BTW I HAVE MORE QUESTIONS UP IF YOU WANT TO HEL
    5·1 answer
  • Simplify (2x+7)-(6x-8)
    5·2 answers
  • Select the correct answer from each drop-down menu. The table lists the speeds of the fastest roller coasters in North America a
    14·2 answers
  • 243 log 3^4x = 48 , x=...
    12·1 answer
  • What are the decimals 7.55, 7.8, 7.505, and 7.5531 in order from least to greatest
    5·1 answer
  • What is the simplest form divide 1/16,1/8?
    6·1 answer
  • Suppose the large number of auto accidents in a small town results in new legislation that requires all citizens of the town to
    7·1 answer
  • David reads this advert on his country council website 70% of the area of woodland in the country is native woodland this means
    10·1 answer
  • Which number line would best model the quotient 3/4 divided by 6?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!