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
Ugo [173]
3 years ago
7

The expression d/t can be used to find the average speed of an object that travel a distance d in time t. What is sc cars averag

e speed if it travels 145 miles in 2.5 hours?
Mathematics
1 answer:
Firlakuza [10]3 years ago
4 0
You just divide the distance travelled by the time like so: 145mi/2.5h and get 58mph. You can convert the 145mi into meters and 2.5h into seconds (145mi is approximately 233345m; 2.5h is 9000 seconds) and get an approximate speed of 26m/s if you want to convert to SI units.
You might be interested in
What is the solution to the system of equations below? y=-1/3 x+6 and y=1/3 x-6​
lilavasa [31]
The answer to the question

8 0
2 years ago
Evaluate the expression x + 8/27. Evaluate the expression for x=8/9
diamong [38]

Answer:

32/27

Step-by-step explanation:

Evaluate for x=

8 /9  + 8 /27

8 /9  + 8 /27

=32/27

(Decimal: 1.185185)

6 0
3 years ago
Read 2 more answers
Anyone help please I need it
andreev551 [17]

Answer:

-10+i\sqrt{2}

Step-by-step explanation:

One is given the following expression:

\sqrt{4}-\sqrt{-98}-\sqrt{144}+\sqrt{-128}

In order to simplify and solve this problem, one must keep the following points in mind: the square root function (\sqrt{}) is a way of requesting one to find what number times itself equals the number underneath the radical sign. One must also remember the function of taking the square root of a negative number. Remember the following property: (\sqrt{-1}=i). Simplify the given equation. Factor each of the terms and rewrite the equation. Use the square root property to simplify the radicals and perform operations between them.

\sqrt{4}-\sqrt{-98}-\sqrt{144}+\sqrt{-128}

\sqrt{2*2}-\sqrt{-1*2*7*7}-\sqrt{12*12}+\sqrt{-1*2*8*8}

Take factors from out of under the radical:

\sqrt{2*2}-\sqrt{-1*2*7*7}-\sqrt{12*12}+\sqrt{-1*2*8*8}

2-7i\sqrt{2}-12+8i\sqrt{2}

Simplify,

-10+i\sqrt{2}

8 0
2 years ago
F(x)=2x^2+3 and g(x)=x^2-7 find (f+g)(x)
defon

Answer:

3x^2 -4

Step-by-step explanation:

F(x)=2x^2+3 and g(x)=x^2-7

(f+g)(x) =

We add the two functions together

(f+g)(x) =2x^2+3+x^2-7

I like to line them up vertically

(f+g)(x) =

2x^2 +3

+x^2  -7

------------------

3x^2 -4

3 0
2 years ago
Which of the following problems would NOT have a solution?
Vika [28.1K]
The last one I think
6 0
2 years ago
Read 2 more answers
Other questions:
  • Pls help me guys! This is super hard
    6·2 answers
  • Which expression is not equivalent to the other three?
    8·1 answer
  • Solve 2x + 5 = 9 and show your work as well please
    8·2 answers
  • Plz help ASAP..........................
    15·2 answers
  • PLS HELP ME IT IS SO HARD
    9·1 answer
  • Simplify the expression given below.
    14·1 answer
  • What is the mean?<br> -1 -1 -4 -5 -4 -4 -7 -8
    9·1 answer
  • PLEASE HELP!! I DON'T UNDERSTAND!!!!! I WILL MARK!!!!
    13·2 answers
  • The points A, B and C in 3D space are such that:
    9·1 answer
  • A 400 L tank is filled with pure water. A copper sulfate solution with a concentration of 20 g/L flows into the tank at a rate o
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!