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
IgorC [24]
3 years ago
7

A big cruise ship dropped anchor off the Caribbean island of Antigua. The heavy anchor dropped into the water at a rate of 2.5 m

eters per second. After 45 seconds, the anchor was 40 meters below the water's surface.
1) From what height (above the water's surface) was the anchor released?
(meters)


2)How long did it take the anchor to reach the water's surface?
(seconds)
Mathematics
1 answer:
4vir4ik [10]3 years ago
8 0

Answer:

1) The anchor was  released from 72.5 meters above the water's surface.

2)The anchor took 29 seconds to reach the water's surface

Step-by-step explanation:

The rate of drop of anchor = 2.5 meters per second

So, total depth covered by anchor after 45 seconds

= 2.5 meters x 45 seconds

= 112.5 meters

But after 45 minutes, the anchor was 40 meters deep.

So, extra distance traveled by anchor = Total distance covered by anchor - depth of water

= 112.5 meters  - 40 meters  =  72.5 meters

Hence, the anchor was  released from 72.5 meters above the water's surface.

Now, speed of anchor = 2.5 m/sec

So, total time taken to cover extra 72. 5 meters = 72. 5 meters / 2.5 m/sec

= 29 seconds

Hence, the anchor took 29 seconds to reach the water's surface.

You might be interested in
Which function is nonlinear?
lutik1710 [3]

Answer:

(-1,5), (0,4) ,(1,3) ,(3,1) is linear so dont pick it

(-4,-7), (-2,-6), (2,-4), (4,-3) is linear

you know what I'll just say it wait a minute is there like a other option

Step-by-step explanation:

U can tell by graphing them out yourself and if u see a straight line then it linear, and if you see a curved loop then it's non- linear. but I'll do it :)

4 0
3 years ago
You buy 5 balloons and 3 banners for $14. Your friend buys 1 balloon and
Zigmanuir [339]

Answer:

4 DLLS

Step-by-step explanation:

7 0
2 years ago
Angle ABC is formed by segments AB and BC on the following coordinate grid: A coordinate grid is shown from positive 6 to negati
Nadusha1986 [10]

Answer:

B) m∠ A'B'C' = m∠ABC

Step-by-step explanation:

A rotation does not change angle measure or side length.  It preserves congruence.

This means that the image angle, A'B'C', will be congruent to the pre-image angle, ABC.

5 0
3 years ago
Read 2 more answers
Help i will mark you brainliest!
Morgarella [4.7K]
Since x+y equals 5 that means x is 3 and y is 2 because 3+2=5. So now plug it in, 2(3)+3(2). Two multiplied by three is 6 and three times two is 6. So now it’s 6+6 which equals 12. So it’s 2(3)+3(2)=12
5 0
2 years ago
Log (rootx+1 + root x-1)
amid [387]

Answer:

Step-by-step explanation:

dy/dx = d/dx log root under x-1 / root under x+1

dy/dx = root under x+1 / root under x-1 * 1/(x+1)^2/3 * 1/root under x-1

dy/dx = (x+1)^2/ x-1

7 0
3 years ago
Other questions:
  • Use green's theorem to compute the area inside the ellipse x252+y2172=1. use the fact that the area can be written as ∬ddxdy=12∫
    14·1 answer
  • Help!! What's the answer for his problem?
    14·2 answers
  • The length of one side of a square city block is 462 meters. what is the perimeter of the block
    8·1 answer
  • What is the GCF of 16s^3t, 40s^5, and 68t^2 <br><br> A. 4<br> B.4s^3t <br> C.8<br> D.8s^3t
    8·2 answers
  • Hi um what is the simplest form for 20 / 100
    13·1 answer
  • What is the decimal value of the fraction 2/7
    11·2 answers
  • Plz help 20 points answers
    10·1 answer
  • Which size box of rice shown in the table has the lowest unit price?
    7·2 answers
  • Can someone help me with this. Will Mark brainliest. Need answer and explanation/work. Thank you.
    15·1 answer
  • 1) Find the area of a triangle with a height of 9 cm and a base of 5 cm.​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!