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
-BARSIC- [3]
3 years ago
12

The distance a train travels is proportional to time. In 4 hours, the train travels 380 kilometers. The relationship between dis

tance and time can be represented as y= ox, where x is the time, in hours, and y is the distance, in kilometers. What is the value of k for this train ?
Mathematics
1 answer:
34kurt3 years ago
7 0
k = \frac{y}{x} = \frac{380}{4} = 95 km/h
You might be interested in
Convert to a fraction in simplest terms: .45
photoshop1234 [79]

Answer:

9/20

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the slope Of a line that passes through the points (9,8) and (2,3)?
tresset_1 [31]

(\stackrel{x_1}{9}~,~\stackrel{y_1}{8})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{3}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{3}-\stackrel{y1}{8}}}{\underset{run} {\underset{x_2}{2}-\underset{x_1}{9}}}\implies \cfrac{-5}{-7}\implies \cfrac{5}{7}

6 0
3 years ago
Read 2 more answers
I need help with this
LiRa [457]

Answer:

X represents The value of players on the field

Step-by-step explanation:

the numbers 0-11 are showing how many people would be on the field should an official game be played

7 0
3 years ago
4 lines extend from point B. A line extends straight up from B to point A. Another line extends up and to the right to point C.
never [62]
The other line extends slightly down and to the right to point E
4 0
3 years ago
If a certain cannon is fired from a height of 8.8 meters above the​ ground, at a certain​ angle, the height of the cannonball ab
Dennis_Churaev [7]

Answer:

It would take approximately 6.50 second for the cannonball to strike the ground.

Step-by-step explanation:

Consider the provided function.

h(t)=-4.9t^2+30.5t+8.8

We need to find the time takes for the cannonball to strike the ground.

Substitute h(t) = 0 in above function.

-4.9t^2+30.5t+8.8=0

Multiply both sides by 10.

-49t^2+305t+88=0

For a quadratic equation of the form ax^2+bx+c=0 the solutions are: x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

Substitute a = -49, b = 305 and c=88

t=\frac{-305+\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}=-\frac{-305+\sqrt{110273}}{98}\\t = \frac{-305-\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}= \frac{305+\sqrt{110273}}{98}

Ignore the negative value of t as time can't be a negative number.

Thus,

t=\frac{305+\sqrt{110273}}{98}\approx6.50

Hence, it would take approximately 6.50 second for the cannonball to strike the ground.

6 0
3 years ago
Other questions:
  • A Ferris will can accommodate 45 people in 15 minutes. How many people could ride the Ferris wheel in three hours?
    15·1 answer
  • max ran 40 miles in one week her friend maci ran 5\8 the distance that max ran. how many miles did maci run
    6·1 answer
  • BRAINLIESTTT ASAP! MATH EXPERT PLEASE HELP ME :)
    12·2 answers
  • In Las Vegas, Nevada, stores charge a 4.6% state sales tax and a 3.65% county sales tax. Yuki is purchasing a handbag priced at
    10·2 answers
  • What is the solution to |2x-3|<4
    9·1 answer
  • Type the correct answer in the box. Use numerals instead of words.
    10·2 answers
  • When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?
    13·2 answers
  • PLS HELP! ANSWER ONLY IF YOU KNOW!
    13·1 answer
  • How do we convert decimal numbers into binary numbers 2483?.
    9·1 answer
  • Joe kept track of how much TV she watched each day for two weeks how many hours did she spend watching TV
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!