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
ch4aika [34]
3 years ago
12

Problem 2.9 a runner completes the 200-meter dash with a time of 20.19 seconds. part a what was the runner's average speed in me

ters per second? express your answer to four significant figures. m/s
Mathematics
1 answer:
Elina [12.6K]3 years ago
8 0

Answer:

Average speed = 9.91 m/s

Explanation :

Total distance covered by a runner = 200 m

Time taken to complete this distance = 20.19 sec

We need to find the average of runner speed in meter/sec

We use the speed,  distance, time formula

speed = \frac{distance}{time}

speed = \frac{200}{20.19}

Average speed = 9.91 m/s

that's the final answer.

I hope it will help you.



You might be interested in
Tripp and Rico are two dogs. Tripp weighs exactly 35 pounds more than Rico. Together, they weigh exactly 49 pounds. How much doe
babymother [125]
Call the weights of the two dogs t and r.

We know that Tripp weights 35lbs more than Rico, or:
t=r+35

We also know that the total weight of both dogs is 49lbs.:
t+r=49

Now, by substitution:
(r+35)+r=49
2r+35=49
2r+35-35=49-35
2r=14
r=\frac{14}{2}
r=7
Rico weighs 7lbs.

Then:
t=r+35
t=7+35
t=42
Tripp weighs 42lbs.

To check our work:
t+r=49
42+7=49
49=49  CHECK!
5 0
3 years ago
Find the value of x.
erastovalidia [21]

Answer:

60 = x

Step-by-step explanation:

180-144 = 36

36+84 = 120

180-120 = 60

7 0
2 years ago
Read 2 more answers
What is 8 thousandths less than 4.989?
emmainna [20.7K]
8000-4.989 so when you see the word less than it means that you have to subtract and more than you have to add so the answer for this question will be 7,995.011
8 0
2 years ago
Attachment need help asap
Diano4ka-milaya [45]

Answer:

c because the x value is equal to the y value

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
I don’t get this one but the question was something about finding the equation.
Alina [70]

9514 1404 393

Answer:

  y = -(x -3)^2 +2

Step-by-step explanation:

The vertex form of the equation for a parabola is ...

  y = a(x -h)^2 +k

where the vertex is (h, k) and the value 'a' is a vertical scale factor.

The value of 'a' can be found by looking at the y-value of points ±1 either side of the vertex relative to the vertex. Here, the vertex y-value is +2 at x=3, and either side goes down 1 unit (to y=1) for 1 unit to the right or left. So, a = -1.

Using the values we've read from the graph for the vertex (h, k) = (3, 2) and the scale factor a = -1, we can write the equation as ...

  y = -(x -3)^2 +2

4 0
3 years ago
Other questions:
  • Which of the following is the result of completing the square for x2 + 8x - 6 ?
    14·2 answers
  • Given cos A = -.45 find angle A in degrees. Round your answer to the nearest hundredth.
    10·1 answer
  • What is the scale factor of figure a to figure b
    14·1 answer
  • Which expression represents 6 more then x
    11·1 answer
  • If ?2000 is placed into a bank account that pays 3% compound interest per year , how much will be in the account after 2 years ?
    14·1 answer
  • Suppose a basketball team had a season of games with the following characteristics: Of all the games, 60% were at-home games. De
    15·2 answers
  • Explain how you would create opposite terms for the x-variable in this system. 3x-6y=-8, -1/4x+4y=6
    5·2 answers
  • Which expression is equivalent to 350 · 22 ?
    13·1 answer
  • Slope intercept of 5x+2y= -2
    14·1 answer
  • Alex is 1.6 m tall and Noah is 1.5 times as tall as Alex. How much tall is Noah in centimeters?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!