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
ratelena [41]
1 year ago
11

If the straight-line distance from her home to the university is 10. 3 km in a direction 25. 0° south of east, what was her aver

age velocity in km/h?.
Mathematics
1 answer:
Paladinen [302]1 year ago
3 0

34.3 Km /h was her average velocity in km/h.

What is average velocity?

  • The change in position or displacement (x) divided by the time intervals (t) during which the displacement happens is the definition of average velocity.
  • Based on the direction of the displacement, the average velocity might either be positive or negative. Meters per second (m/s or ms-1) is the SI measure for average velocity.
  • The displacement of a body, or the shortest distance it must go during a trip, is calculated as the displacement multiplied by the time interval over which it covered that distance.

average velocity = Displacement / time taken

            V = d/ l

V = 10.3 Km/0.300m = 34.3Km

Learn more about average velocity

brainly.com/question/862972

#SPJ4

You might be interested in
Help ME pls !!!!!!!!!!!!!!!
nata0808 [166]
Y>\= -40
Is the answer
6 0
2 years ago
Read 2 more answers
What is the square root of 25/9?
eimsori [14]
The square root of 25/9 is 5/3
4 0
3 years ago
Read 2 more answers
If (3). write the following vectors in column vector form:
Art [367]

Answer:

see explanation

Step-by-step explanation:

Given

a = \left[\begin{array}{ccc}3\\2\\\end{array}\right]

To obtain -3a multiply each of the elements of a by -3

3a = \left[\begin{array}{ccc}-3(3)\\-3(2)\\\end{array}\right] = \left[\begin{array}{ccc}-9\\-6\\\end{array}\right]

To obtain 1.5a multiply each element by 1.5

1.5a = \left[\begin{array}{ccc}1.5(3)\\1.5(2)\\\end{array}\right] = \left[\begin{array}{ccc}4.5\\3\\\end{array}\right]

8 0
3 years ago
The rate of growth of profit​ (in millions) from an invention is approximated by Upper P prime (x )equals x e Superscript negati
Alecsey [184]

Answer:

The function is  P(x) =  \frac{1}{2} e^{-x^2} +0.016

Step-by-step explanation:

From the question we are told that

    The rate of growth  is  P'(x) =  xe^{x} - x^2

     The total profit is P(2)  =$25,000

      The time taken to make the profit is x =  2 \ years

         

From the question

     P'(x) =  xe^{-x^2}  is the rate of growth

  Now here x represent the time taken

Now the total profit is mathematically represented as

       P(x) =  \int\limits {P'(x)} \,  =   \int\limits {xe^{-x^2}} \,

So using substitution method

   We have that

                      u =  - x^2

                      du =  2xdx

  So  

        p(x) =  \int\limits {\frac{1}{2} e^{-u}} \, du

       p(x) =  {\frac{1}{2} [ e^{-u}} +c ]

       p(x) =  {\frac{1}{2}  e^{-x^2}} + \frac{1}{2} c      recall  u =  - x^2   and  let  \frac{1}{2} c =  Z

       

At  x =  2 years  

     P(x)  =$25,000

So

       Since the profit rate is in million

    P(x)  =$25,000 = \frac{25000}{1000000} =$0.025 millon dollars

So  

       0.025 =  {\frac{1}{2}  e^{-2^2}} + Z  

=>    Z = 0.025 - {\frac{1}{2}  e^{-2^2}}  

       Z = 0.016  

So the profit function becomes

         P(x) =  \frac{1}{2} e^{-x^2} +0.016

     

       

5 0
3 years ago
X + y = 152,<br><br> 8.5x + 12y = 1,656<br><br> How many hats were sold?
Elodia [21]

Answer:

x = 48 and y = 104

Step-by-step explanation:

Given equations are:

x+y = 152\\8.5x+12y=1656

From equation 1:

x = 152-y

Putting the value of y in equation 2

8.5(152-y)+12y = 1656\\1292-8.5y+12y = 1656\\3.5y+1292 = 1656\\3.5y = 1656-1292\\3.5y = 364\\\frac{3.5y}{3.5} = \frac{364}{3.5}\\y = 104

Now we have to put the value of y in one of the equation to find the value of x

Putting y = 104 in the first equation

x+y = 152\\x+ 104 = 152\\x = 152-104\\x = 48

Hence,

The solution of the system of equations is x = 48 and y = 104

The value of variable which was assumed for number of hats, is the total number of hats.

6 0
2 years ago
Other questions:
  • A composite figure is a _____. figure made up of 3 or more basic shapes figure that is 1/2 of another shape trapezoid figure mad
    10·2 answers
  • Find the total surface area of this cylinder. Give your answer to one decimal place first correct answer will get brainliest and
    14·1 answer
  • 1) Uma produtora pretende lançar um filme em dvd e prevê uma venda de 20.000 cópias. O custo fixo de produção do filme foi R$ 15
    14·1 answer
  • Which of the following is a solution to the inequality 5x-25&gt;18
    10·1 answer
  • Determine if the two triangles are congruent. If they are, state<br> the condition.
    12·2 answers
  • What is prodckt the of 0.22
    6·1 answer
  • NUMERATOR<br> DENOMINATOR<br><br> 4/40
    6·2 answers
  • Solve the inequality. Graph the solution.<br><br> −8&lt;−1/3 x
    10·1 answer
  • Find m∠1.<br><br>A) 103°<br><br>B) 13°<br><br>C) 77°<br><br>D) 26°
    15·2 answers
  • There are 3/4 as many boys as girls in a class of fifth-graders. If there are 35 students in the class, how many are girls?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!