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
aleksley [76]
3 years ago
9

A sprinter travels a distance of 100 m in a time of 11.21 seconds.

Mathematics
2 answers:
sergiy2304 [10]3 years ago
6 0

Answer:

distance travelled by sprinter = 100 m

Time taken = 11.21sec

∵speed = distance/time taken

= 100/9.83

= 10.17 m/s

Now we know, 1 km/h = 1000/3600 m/s

so, 1 m/s = 3600/1000 km/h = 18/5 km/h

∴ 10.17 m/s = 10.17 × 18/5 = 10.17 × 18/5 = 36.612 km/h

Hence, average speed = 36.612 km/h

Step-by-step explanation:

Aleks [24]3 years ago
5 0

Answer:

distance travelled by sprinter = 100 m

Time taken = 11.21sec

Hence, average speed = 36.612 km/h

Step-by-step explanation:

You might be interested in
Micah rows his boat on a river 4.48 miles downstream, with the current, in 0.32 hours. He rows back upstream the same distance,
ira [324]
The speed of the current that Micah rows his boat on would be 3 miles per hour assuming that he is rowing 4.48 miles downstream with the current, in 0.32 hours.
7 0
3 years ago
Read 2 more answers
Find an exact value.
leonid [27]

Answer:

(√2 - √6) / 4

C. square root of two minus square root of six divided by four.

Step-by-step explanation:

sine of negative eleven pi divided by twelve.

We have :

sin(-11π/12)

sin((4 - 15)π / 12) = sin(4π/12 - 15π/12)

sin(4π/12 - 15π/12) = sin(π/3 - 5π/4)

Recall:

Angle difference formula:

sin(A - B) = sinAcosB - sinBcosA

Hence,

sin(π/3 - 5π/4) = sin(π/3) cos(5π/4) − sin(5π/4) cos(π/3)

From trigonometry:

sinπ/3 = √3/2

cos5π/4 = -√2/2

sin5π/4 = -√2/2

cos π/3 = 1/2

(√3/2) (-√2/2) − (-√2/2) (1/2)

-√6/4 - -√2/4

-√6/4 + √2/4

√2/4 - √6/4

(√2 - √6) / 4

7 0
2 years ago
What is the value of a in this diagram
Delicious77 [7]
What diagram people?
8 0
3 years ago
Nnnooooo liinnkkkks
Arturiano [62]
The answer I believe is c
7 0
2 years ago
Read 2 more answers
Write each trigonometric ratio as a fraction in simplest form. show all supporting work
Nesterboy [21]

Answer: \frac{x}{20}

Step-by-step explanation:

Sine uses the ratio,  \frac{opposite}{hypotenuse} so we can plug in the information we know. since there is no current value for the opposite side of angle A, we can just use a variable to replace it.

sinA=\frac{x}{20}

You can't reduce this any further because there is an unknown variable.

7 0
3 years ago
Other questions:
  • Bonjour est que quelqu'un pourrait m'aider svp pour cette exercice des mathématique Merci
    5·1 answer
  • Which set of numbers is correctly ordered from least to greatest?
    15·2 answers
  • A department store in your hometown charges 9.75% tax; the stores location in your cousins hometown only charges 7.75% tax. If a
    6·1 answer
  • A recipe calls for 2 tsp of butter. Melinda wants to make 40% more servings than the recipe makes. Which expression represents h
    15·1 answer
  • How many diagonals does the regular polygon have
    6·1 answer
  • 12 = -4(-6x -3)
    12·2 answers
  • Number graph ranging from negative five to five on the x and y axes. A line is drawn on the graph that passes through the labele
    11·1 answer
  • Help please!!!
    15·1 answer
  • Which table corresponds to the function y = -3x + 11?
    13·1 answer
  • What is the domain of the relation graphed below?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!