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
tankabanditka [31]
2 years ago
10

Can i please get help with this question?

Mathematics
1 answer:
VladimirAG [237]2 years ago
8 0

if you add a negitive to a positive its like subtracting like 20 - (-30) (that would be -10) for your question its 0.6


You might be interested in
What is the mean absolute deviation of this data set?<br><br> 4, 8 , 3, 8, 7, 10, 9
sergeinik [125]

Answer: Mean Absolute Deviation (MAD): 7

Hope this helps u!

Have a good day and stay safe!

8 0
3 years ago
Read 2 more answers
Avery bought a washing machine originally priced at $864.72 but on sale for 30% off. After 4% sales tax, what was the total cost
atroni [7]

Answer: 629.51

Step-by-step explanation: 30% of 864.72 is 259.416

864.72 - 259.416 = 605.304      4% of 605.3 = 24.212     605.3 + 24.21 = 629.51

3 0
2 years ago
How would you do a,b,c,and d
I am Lyosha [343]

a) You are told the function is quadratic, so you can write cost (c) in terms of speed (s) as

... c = k·s² + m·s + n

Filling in the given values gives three equations in k, m, and n.

28 = k\cdot 10^2+m\cdot 10+n\\21=k\cdot 20^2+m\cdot 20+n\\16=k\cdot 30^2+m\cdot 30+n

Subtracting each equation from the one after gives

-7=300k+10m\\-5=500k+10m

Subtracting the first of these equations from the second gives

2=200k\\\\k=\dfrac{2}{200}=0.01

Using the next previous equation, we can find m.

-5=500\cdot 0.01+10m\\\\m=\dfrac{-10}{10}=-1

Then from the first equation

[tex]28=100\cdot 0.01+10\cdot (-1)+n\\\\n=37[tex]

There are a variety of other ways the equation can be found or the system of equations solved. Any way you do it, you should end with

... c = 0.01s² - s + 37

b) At 150 kph, the cost is predicted to be

... c = 0.01·150² -150 +37 = 112 . . . cents/km

c) The graph shows you need to maintain speed between 40 and 60 kph to keep cost at or below 13 cents/km.

d) The graph has a minimum at 12 cents per km. This model predicts it is not possible to spend only 10 cents per km.

4 0
3 years ago
Use the following rules to graph and label the ordered pairs on a coordinate grid with at least 4 points on the coordinate plane
Sati [7]

Answer:

3

Step-by-step explanation:

I just had this question

3 0
2 years ago
HELP PLEASEEEE!!! SOMEONE HELP ME FOR ONCE, NO ONE IS ANSWERING MY QUESTIONS AND IM SO FREAKING STRESSED OUT. OH MY GOD SOMEONE
Allisa [31]

Answer:

I have come to the conclusion that it is A. 112,000

8 0
2 years ago
Read 2 more answers
Other questions:
  • The area of a room is 396 square feet. The length is (x + 8) feet and the width is (x + 4) feet. Find the dimensions of the room
    5·2 answers
  • A car drives 195 miles in 3 hours and 15 minutes. what is the average speed of the car?
    10·1 answer
  • Please help me solve x3 = 64.
    11·2 answers
  • Every time you have your cholesterol measured, the measurement may be slightly different due to random fluctuations and measurem
    6·1 answer
  • (04.07) The same amount of trash is dumped into a landfill every day. The function below shows the total number of tons of trash
    15·2 answers
  • 46 percent of 340 miles
    13·2 answers
  • Is 9x-3y=12 and 27x+9y=38 parallel or perpendicular
    9·1 answer
  • 12. What is the slope of the line <br> =3x + 5?<br><br> 5<br> 3<br> -5<br> -3
    12·1 answer
  • Which expression is equivalent to squareroot 36/25
    13·1 answer
  • Naomi's car exponentially depreciates at a rate of 8% per
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!