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
vitfil [10]
3 years ago
10

B) Calcula el tiempo en minutos de un nadador que batio el récord mundial de las

Mathematics
1 answer:
zhenek [66]3 years ago
7 0

Answer:

1.2 minutes

Step-by-step explanation:

60 min = 20 km

? = 0.4 km

? = (0.4 * 60) / 20 = 1.2

You might be interested in
Pleaseeeeeeeeeee help.
Sauron [17]

Answer:

The total distance Remy will swim is approximately 236 meters

Step-by-step explanation:

From the given diagram, of triangle ΔCAB, we have that the path Remy is to swim are;

1) Length of segment C to A

2) Length of segment A to B

3) Length of segment B to C

The length of the perpendicular at point D on segment AB to C = 60 meters

Therefore, DC = 60 m

By trigonometric ratios, we have;

tan (\theta) = \dfrac{Opposite \ leg \ length}{Adjacent \ leg \ length}

cos(\theta) = \dfrac{Adjacent\ leg \ length}{Hypotenuse \ length}

We are given the values of the trigonometric ratios of the following angles;

tan(27°) = 0.51

tan(43°) = 0.93

cos(27°) = 0.89

cos(43°) = 0.73

∴ tan(43°) = AD/DC = 0.93

Where the lengths of AC, AD, DB, DC and BC

AD = DC × tan(43°)

∴ AD = 60 × 0.93 ≈ 55.8

Similarly, we have;

tan(27°) = DB/DC

∴ DB = DC × tan(27°)

DB = 60 × 0.51 ≈ 30.6

From cos(\theta) = \dfrac{Adjacent\ leg \ length}{Hypotenuse \ length}, we have;

cos(43°) = DC/AC

AC = DC/(cos(43°))

∴ AC = 60/0.73 ≈ 82.2

Similarly, we have;

cos(27°) = DC/BC

BC = DC/(cos(27°))

∴ BC = 60/0.89 ≈ 67.4

The total distance Remy will swim = AC + AD + DB + BC

∴ The total distance Remy will swim = 82.2 + 55.8 + 30.6 + 67.4 = 236

The total distance Remy will swim = 236 meters

6 0
3 years ago
1) prove that the circumcenter of an equilateral triangle is the same as its centroid i) calculate the length of the side of an
Juliette [100K]

Answer:

The complete explanation and solution is attached below:

Explanation:

4 0
3 years ago
in a certain game, a fair die is rolled and a player gains 20 points if the die shows a 6. if the die does not show a 6, the pla
BaLLatris [955]

The expected gain or loss is an illustration of mean and expected values.

The expected total gain is 83 points

The given parameters are:

  • Addition of 20 points for rolling a 6
  • Removal of 3 points for not rolling a 6

The probability of rolling a 6 in a fair die is 1/6.

The probability of not rolling a 6 in a fair die is 5/6.

So, the expected gain in each game is:

\mathbf{E(x) = 20 \times \frac 16 - 3 \times \frac 56}

\mathbf{E(x) = \frac{20}6 -  \frac{15}6}

Take LCM

\mathbf{E(x) = \frac{5}6}

\mathbf{E(x) = 0.83}

The number of games is 100.

So, the expected gain is:

\mathbf{Gain = 100 \times 0.83}

\mathbf{Gain = 83}

Hence, the expected total gain is 83 points

Read more about expected value at:

brainly.com/question/13499496

5 0
3 years ago
A group of students formed a circle during a game. The circumference of the circle was about 43.96 feet, and the diameter of the
Tpy6a [65]

Answer:

c)7/43.96

Step-by-step explanation:

a) 43.96/7

b)43.96/14

c)7/43.96

d)14/43.96

7 0
3 years ago
Read 2 more answers
the three sides of an equilateral triangle measure x 12, 2x - 5 and 3x - 22 inches. the sides of the triangle measure:
Novay_Z [31]
27.... or whats the x12 ?

4 0
4 years ago
Other questions:
  • Choose the answer that best translates
    11·1 answer
  • Help please! Will give brainly!!! Which of the following equations have the same solution? Give reasons for your answer that do
    10·1 answer
  • the area of aron's favorite poster is 6 square feet. the length of the poster is 3 feet. find the width of the poster​
    15·2 answers
  • (1+6)9<br> _______=<br> 5²-4
    5·1 answer
  • A card was selected at random from a standard deck of cards. The suit of the card was recorded, and then the card was put back i
    10·2 answers
  • Jim Taylor is insured for bodily injury in the amount of 100/300. He is at fault in an accident in which Marilee Medley is injur
    15·2 answers
  • 2x-3y = -2<br> X + 24 = 15
    8·1 answer
  • Which decimal is equivalent to 8/11 ?
    11·2 answers
  • A rectangular swimming pool has a perimeter of 108 feet and is 28 feet wide, what is its area?
    12·2 answers
  • Please help me with this​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!