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
andrezito [222]
3 years ago
15

At noon, ship a is 30 nautical miles due west of ship

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
8 0
Let the origin of the coordinate system be the position of ship B at noon. Then the distance between the ships as a function of t (in hours) is
.. d = √((30 +23t)² +(17t)²)
.. = √(818t² +1380t +900)

The rate of change of distance with respect to time is
.. d' = (1/2)(2*818*t +1380)/√(818t² +1380t +900)
.. = (818t +690)/√(818t² +1380t +900)

At t=4, this is
.. d' = (818*4 +690)/√(818*16 +1380*4 +900)
.. = 3962/√19508
.. ≈ 28.37 . . . . . knots

The distance between the ships is increasing at about 28.37 knots at 4 pm.

You might be interested in
Two trains are traveling at a constant rate which train has the greater speed
notka56 [123]
Neither cause there both at the same constant rate so one train wouldn’t be traveling at a greater speed unless there is something missing from the question being asked like the actual speed of each individual train then there would be one train traveling at a greater speed
3 0
3 years ago
Solve for x
Ivan

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

The measures of all angles in this geometry are 90 degrees.

  21x +6 = 90

  21x = 84 . . . . . subtract 6

  x = 4 . . . . . . . divide by 21

5 0
3 years ago
I'm so confused xD picture attached.
dimulka [17.4K]
B. if you think it is not correct don't put it in
4 0
3 years ago
Read 2 more answers
PLEASE HELP! (picture is shown) <br> which of the following points are collinear in this image?
algol [13]

Answer:

F, K & G

Step-by-step explanation:

Points are colinear if they lie on the same straight line.

only K , F & G line on a straight line.

5 0
3 years ago
Read 2 more answers
What is the vertex of f(x) = |x + 8| – 3?
Arte-miy333 [17]

Answer:

(-8,-3)

Step-by-step explanation:

This question is similar to the vertex form of a quadratic equation, so you can think of this equation like f(x) = (x-h)+k. Using this equation, you can determine the vertex (h,k) of |x+8|-3, which is (-8,-3).

5 0
3 years ago
Other questions:
  • Megan ate 3/4 of a cookie. wrote and equivalent fraction for the amount of cookie Megan didn't eat
    8·2 answers
  • What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with f(x) + 6?
    7·2 answers
  • Interest is calculated by ____.
    11·2 answers
  • Write cos (19°) in terms of sine​
    14·1 answer
  • A letter from the word probability is chosen at random. find each probability
    14·1 answer
  • Calculate how much you could reduce the harmful emissions if your family used public transportation to go to school and work, us
    15·1 answer
  • 12=4-4x<br>PLEASE HELPPP​
    11·1 answer
  • PLZ HELP!!! I NEED THIS ANSWER FAST!<br> thank you :)
    8·2 answers
  • Find the distance between the points (-3, -6) and (5,9).<br> Hint: Use the Pythagorean theorem.
    7·1 answer
  • Sonny works as a furniture salesman and earns a base salary of $350 per week plus 6% commission on sales. If Sonny sold $3,750 i
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!