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
Tems11 [23]
3 years ago
5

A scuba diver dove from the surface of the ocean to an elevation of -79 9/10 feet at a rate of -21.3 per minute. After spending

10.5 minutes at that elevation, the diver ascended to an elevation of -8 9/10 feet. The total time for the dive so far was 17 1/8 minutes. What was the rate of change in the diver's elevation ascent? Round you answer to the nearest hundredth.
Mathematics
1 answer:
saw5 [17]3 years ago
8 0

Answer:

The rate of change of the divers elevation is approximately 24.71 feet/minute

Step-by-step explanation:

The given information are;

The depth to which the scuba diver dove =-79\frac{9}{10} \ feet

The rate at which he dove = -21.3 feet/minute

The time which he spent at that elevation = 10.5 minutes

The elevation the diver then ascended to = -8\frac{9}{10} \ feet

The total time for the dive = 17\frac{1}{8} \ minutes

Therefore, the time, t_d, with which the scuba diver descended to -79\frac{9}{10} \ feet is given as follows;

t_d = \dfrac{Distance}{Speed} = \dfrac{-79\frac{9}{10} }{-21.3} \approx 3.75 \  minutes

The time, t_e, it took the scuba diver to elevate to -8\frac{9}{10} \ feet is given as follows;

t_e = 17\frac{1}{8} \ minutes - (3.75 + 10.5) minutes ≈ 2.8738 minutes

The rate of change of the divers elevation = (Final elevation - Initial elevation)/(Time taken)

∴ The rate of change of the divers elevation = (-8\frac{9}{10} \ feet - (-79\frac{9}{10} \ feet ))/(2.87 minutes) = 71/2.8738 ≈ 24.71 feet/minute to the nearest hundredth

The rate of change of the divers elevation ≈ 24.71 feet/minute.

You might be interested in
L || m
Alona [7]

Answer:

c. m∠1 + m∠6 = m∠4 + m∠6

Step-by-step explanation:

Given: The lines l and m are parallel lines.

The parallel lines cut two transverse lines. Here we can use the properties of transverse and find the incorrect statements.

a.  m∠1 + m∠2 = m∠3 + m∠4

Here m∠1 and m∠2 are supplementary angles add upto 180 degrees.

m∠3 and  m∠4 are supplementary angles add upto 180 degrees.

Therefore, the statement is true.

b. m∠1 + m∠5 = m∠3 + m∠4

m∠1 + m∠5 = 180 same side of the adjacent angles.

m∠3 + m∠4 = 180, supplementary angles add upto 180 degrees.

Therefore, the statement is true.

Now let's check c.

m∠1 + m∠6 = m∠4 + m∠6

We can cancel out m∠6, we get

m∠1 = m∠4 which  is not true

Now let's check d.

m∠3 + m∠4 = m∠7 + m∠4

We can cancel out m∠4, we get

m∠3 = m∠7, alternative interior angles are equal.

It is true.

Therefore, answer is c. m∠1 + m∠6 = m∠4 + m∠6

3 0
3 years ago
A minimum-phase continuous-time system has all its poles and zeros in the left-half s-plane. If a minimum-phase continuous-time
vlabodo [156]

Answer:

Yes, a minimum phase continuous time system is also minimum phase when converted into discrete time system using bilinear transformation.

Step-by-step explanation:

Bilinear Transform:

In digital signal processing, the bilinear transform is used to convert continuous time system into discrete time system representation.

Minimum-Phase:

We know that a system is considered to be minimum phase if the zeros are situated in the left half of the s-plane in continuous time system. In the same way, a system is minimum phase when its zeros are inside the unit circle of z-plane in discrete time system.

The bilinear transform is used to map the left half of the s-plane to the interior of the unit circle in the z-plane preserving the stability and minimum phase property of the system. Therefore, a minimum phase continuous time system is also minimum phase when converted into discrete time system using bilinear transformation.

8 0
3 years ago
Read 2 more answers
Which expression is not equivalent to the other expressions?
Ket [755]
That would be D

the first 3 = -12x + 24

bur D  = -12x - 24
4 0
4 years ago
Read 2 more answers
Write a system of equations, with one equation describing the cost to bowl at Bowl-o-Rama and the other describing the cost to b
ZanzabumX [31]

Complete question :

Write a system of equations, with one equation describing the cost to bowl at Bowl-o-Rama and the other describing the cost to bowl at Bowling Pinz. For each equation, let x represent the number of games played and let y represent the total cost.

Bowl-O-Rama rents shoes for $2 and each game cost $2.50

Bowling Pinz rents shoes for $4 and each game cost $2

Answer:

Bowl-O-Rama:

y = $2 + $2.50x

Bowling pinz:

y = $4 + $2x

Step-by-step explanation:

The total cost is the sum of shoe rental plus the product of the unit game rate and the number of games played.

Total cost, y

x = number of games played

Bowl-O-Rama:

y = Shoe rent + (unit rate per game * number of games)

y = $2 + ($2.50 * x)

y = $2 + $2.50x

Bowling Pinz :

y = Shoe rent + (unit rate per game * number of games)

y = $4 + ($2 * x)

y = $4 + $2x

3 0
3 years ago
HELPPPPPPPPP PLEASEEEEE
zaharov [31]
The answer was a 6 cups
3 0
3 years ago
Read 2 more answers
Other questions:
  • A company says that the probability of finding an all-star card in a game pack is 12.5%. A student wants to determine the probab
    8·2 answers
  • Marty teaches music in his community. He teaches three classes a day, and each class has fewer than 8 students. If Marty teaches
    15·1 answer
  • Simplify (2x-5y)^3-(2x+5y)
    14·1 answer
  • Congruent triangles pls help
    13·1 answer
  • I need help with this urgently!!
    8·1 answer
  • What kind of triangle is this? 17 17 17
    10·2 answers
  • 7x+8y=-23<br> 3x - 16y= 29
    6·1 answer
  • Can you find other rational numbers that follow similar patterns?
    8·1 answer
  • 20 POINTS ANSWER QUICK<br> 7 (1) = 7 is an example of what property?
    12·2 answers
  • 6523 ÷ 11 = <br> pls show your work thx
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!