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
DerKrebs [107]
3 years ago
15

What is the sign of-5×-1/-2 is it A: positive B: negative C: zero

Mathematics
1 answer:
kvv77 [185]3 years ago
5 0

Answer:

negative

Step-by-step explanation:

You might be interested in
Find the distance between the points.<br><br> (9.7, -2.1), (-3.2, 8.1)
seropon [69]
The answer you are going to be looking for with this question is 16.4. Hope this helps you out a little :)
4 0
3 years ago
Please help, I’ve looked everywhere and haven’t found any answers!
Sergio [31]

Answer:

m = 4 + (2n)/(3)

Step-by-step explanation:

Move all terms that contain m to the right side and solve it.

7 0
3 years ago
What is the best estimate for the length of an ant's leg? *
Novosadov [1.4K]

Answer: about 1 cm

Step-by-step explanation:

5 0
3 years ago
The tip jar at a sandwich shop has been found to have a dollar value 0.65ℎ +1.25, where ℎ is the number of hours since the shop
DedPeter [7]

Answer:

The intial value is 1.25

Step-by-step explanation:

7 0
3 years ago
I need help with Q9 c, I’ve done a and b if it helps, b=325 but I am just stuck on question 9C, I know the answer is 500N (as it
777dan777 [17]

Step-by-step explanation:

I know you've already done parts a and b, but I'll show the work for that before I do c.

Draw two free body diagrams, one for the car and one for the trailer.  The car pulls the trailer forward with a tension force T, so the trailer pulls backward on the car with an equal and opposite force T.

The car also has a 1200 N forward force from the engine, and a 200 N backwards force from resistance.

The trailer has a backwards resistance force of 100 N.

Sum of forces on the car:

∑F = ma

1200 − 200 − T = 900a

1000 − T = 900a

Sum of forces on the trailer:

∑F = ma

T − 100 = 300a

To solve the system of equations, first add the equations together.

1000 − 100 = 1200a

900 = 1200a

a = 0.75 m/s²

Plug back into either equation to find the tension force:

T = 325 N

Now for part c, draw new free body diagrams for the car and trailer.  This time, the car is pushing back on the trailer to slow it down.  So the trailer is pushing forward on the car with an equal and opposite force.  The magnitude of that tension force is given to be 100 N.

The car also has a backwards 200 N force from resistance, and a backwards brake force F.

The trailer has a backwards 100 N force from resistance.

Sum of forces on the car:

∑F = ma

100 − 200 − F = 900a

-100 − F = 900a

Sum of forces on the trailer:

∑F = ma

-100 − 100 = 300a

-200 = 300a

a = -⅔

Plugging into the first equation:

-100 − F = 900 (-⅔)

-100 − F = -600

F = 500 N

4 0
3 years ago
Other questions:
  • Plz help :p &lt;&gt;&lt;&gt;&lt;&gt;&lt;&gt;&lt;&gt;&lt;&gt;
    9·2 answers
  • In the diagram shown, line mm is parallel to line nn. Cruz says that ∠4∠4 and ∠6∠6 are congruent angles. Is he correct? Why or w
    13·2 answers
  • What is <br> Show your work
    14·1 answer
  • What is the solution to y=2x+3 y=3x+3
    12·2 answers
  • . Critique Reasoning Monica deposits $100 into
    8·1 answer
  • Find h. 9 ft h 7 ft 15 ft Your answer what is the answer ​
    8·1 answer
  • What are 3 ratios that are equivalent to 8 :5
    14·1 answer
  • Mike and Carolyn drove to their parents house for Thanksgiving. Mike drove 84 3/4 miles and Carolyn
    7·2 answers
  • Solve for X <br> Please help
    7·1 answer
  • I need to find x please help me with steps
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!