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
lapo4ka [179]
3 years ago
15

Um navio partiu do porto A, percorreu 70 milhas para o sul e atingiu o porto B. Em seguida percorreu 30 milhas para leste e atin

giu o porto C. Finalmente, navegou 110 milhas para o norte, ancorando no porto D. Quantas milhas teria poupado se navegasse em linha reta do porto A diretamente para o porto D?
120 milhas

130 milhas

140 milhas

150 milhas

160 milhas
Mathematics
1 answer:
Agata [3.3K]3 years ago
6 0

Answer:

A distância do porto A ao porto D pode ser calculada com auxílio do teorema de Pitágoras, pois o triângulo retângulo que se pode obter traçando-se uma paralela à trajetória do porto B ao porto C passando pelo ponto A tem as seguintes medidas

catetos 30 e 40 sendo que a hipotenusa é a distãncia de A até D:

Step-by-step explanation:

resolvendo:

(AD)^{2} = 30^{2} +40^{2}(AD)^{2}  = 900 + 1600(AD)^{2}  =  2500AD = \sqrt{2500} AD = 50 milihasLogo, pelo caminho percorrido completou 70+30+110= 210 milhasTeria economizado, então, 210 - 50 = 160 milhas

Logo, pelo caminho percorrido completou 70+30+110= 210 milhas

Teria economizado, então, 210 - 50 = 160 milhas

You might be interested in
The measure of angle θ is 600°. . The point (x, y) corresponding to θ on the unit circle is? (___,___). the options for inside p
Ipatiy [6.2K]

Answer: C: -1/2 (x-coordinate) and A: - ∛3 / 2 (y-coordinate)


Explanation:


1) In the unit circle, the x and y - coordinates are the cosine and sine ratios, respectivle.


2) 600° corresponds to 600 - 360° = 240°.


3) 180° < 240° < 270° ⇒ the point is in the third quadrant.


Third quadrant ⇒ both x and y coordinates are negative, so D. cannot be a solution.


4) You can work with the supplementary angle to use notable angles:


240° - 180° = 60°


The sine and cosine of 60° are known:


sin 60° = ∛3 / 2, and cos 60° = 1/2.


5) In the unit circle the x-coordinate is the cosine of the angle, and the y-coordinate is the sine of the angle:


So, x = - 1/2 and y = - ∛3/2.


6) You can verify in a calculator; sin 240° = -0.866... and cos 240° = - 0.5.


Therefore, the answer is: A: - ∛3 / 2, for the y-coordinate, and C: - 1/2 for the x-coordinate.

6 0
4 years ago
Read 2 more answers
Triangle J K L is shown. Angle J K L is a right angle. An altitude is drawn from point K to point M on side L J to form a right
OleMash [197]

Answer:

sdeerwegh

Step-by-step explanation:

7 0
3 years ago
Match the function with the graph
Daniel [21]
The answer is B because it’s not a straight line and x can not have an exponent of 2 bc it will make it nonlinear
5 0
4 years ago
Effect on supply of pies when price of pies increase
never [62]

Answer:c

Step-by-step explanation:i did it

4 0
3 years ago
How many feet can a sloth go in 90 minutes?
tigry1 [53]

Answer:

600

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. x+y = 3, x = 4
    15·1 answer
  • Shown is a pentagon, with the size of each angle shown. Find the size of the largest angle
    10·1 answer
  • Which row of Pascal’s triangle would you use to expand (2x + 10y)15? row 10 row 12 row 15 row 25
    5·2 answers
  • What is 2 9/10 as a decimal.
    10·2 answers
  • What is managerial statistics?
    6·1 answer
  • Which of the following is the coefficient in the algebraic expression x^2 +16y
    7·1 answer
  • Find the result when 90 is decreased by 85%.
    9·1 answer
  • Help!! YEEEEEEEEEEEEEEEEEET
    8·1 answer
  • Select all the expressions that are equivalent to .
    14·1 answer
  • sophia got 8 presents for her birthday . There were 3 shirts in each present. she wants to organize her new shirts and will put
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!