Mathematics, 22.07.2019 10:00 phillipsk5480

1. a ship sails at a constant speed of 20 km/hr. the ship leaves port and sails 20 degrees north of east for 2 hours. the ship then changes direction and sails 10 degrees west of north for 1 hours. at the end of this trip how far is the ship from the starting port ?

Answers: 1

Show answers

Answers

Answer from: ibrahimharoon

The ship is 41.23 km away from the starting port.

Calculus

Given that a ship sails at a constant speed of 20 km/hr, and the ship leaves port and sails 20 degrees north of east for 2 hours, and the ship then changes direction and sails 10 degrees west of north for 1 hours, to determine , at the end of this trip, how far is the ship from the starting port, the following calculation must be made, applying the Pythagorean theorem:

40^2 + 10^2 = X^21600 + 100 = X^2√1700 = X41.23 = X

Therefore, the ship is 41.23 km away from the starting port.

Learn more about calculus in link

Answer from: joannachavez12345

The ship sails at 20 km / h.
So
20 km / h x 2 h = 40 km
The boat moves 40 km to the northeast.
Then, in the same way:
20 km / h x 1 h = 20 km.
The ship moves 20 km northwest.
We solve this problem using vectors. In this case, we must perform the sum of two vectors a and b
a) magnitude = 40 km and direction 20 degrees east
b) magnitude = 20 km and direction 10 degrees northwest
In Cartesian coordinates, these vectors are written as:
a) 40sin (20º) i + 40cos (20º) j = 13,68i + 37,59j
b) -20sin (10th) i + 20cos (10th) j = -3,473i + 19,70j
The displacement vector of the ship would be the sum of a + b
a + b = 10,207i + 57,29j Finally, the magnitude of the a + b vector will tell us how far the ship is
√(10.21² + 57.29²) = 58.92km

Answer from: Quest

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

Answer from: Quest

answer: the is put the 450

step-by-step explanation:

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 22:10, BreadOfTheBear

Use the spider tool located on page 1 of this activity to draw a 12-pointed star for the new logo. (hint: if the spider rotates 360 degrees -- or 720 degrees or 1080 degrees -- she will be facing in the same direction in which she started. when the spider is done drawing, you want her to be facing in the same direction in which she started. she'll be making 12 rotations, all the same size, so each rotation must be some multiple of 360/12 = 30 degrees.) urgently. been stuck on this problem for around 45 minutes now.! it should be easy if you're smart enough

Answers: 3

continue

Mathematics, 21.06.2019 22:30, taheraitaldezign

Will give brainliestbased on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m?

Answers: 3

continue

Mathematics, 21.06.2019 23:00, SKYBLUE1015

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4

Answers: 1

continue

Mathematics, 22.06.2019 02:20, LillySchool6529

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?

Answers: 3

continue

You know the right answer?

1. a ship sails at a constant speed of 20 km/hr. the ship leaves port and sails 20 degrees north of...