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
pentagon [3]
3 years ago
13

If an arrow is shot upward on Mars with a speed of 68 m/s, its height in meters t seconds later is given by

Mathematics
1 answer:
Talja [164]3 years ago
6 0

Answer:

(a) dy/dt = 68 - 3.72t

(b) 64.28m/s

Step-by-step explanation:

Given y = 68t - 1.86t²

Average Speed is rate of chance of distance with respect to time. Written as dy/dt

To obtain dy/dt, we differentiate y with respect to t, doing that, we have

dy/dt = 68 - 2(1.86)t

= 68 - 3.72t

(a) dy/dt = 68 - 3.72t

(b) To estimate the speed when t = 1, we substitute t = 1 in dy/dt .

dy/dt at t = 1 is

68 - 3.72(1)

= 68 - 3.72

= 64.28

The speed at t = 1 is 64.28m/s

You might be interested in
7th grade math help me pleaseeee
horsena [70]

Answer:

-11

Step-by-step explanation:

7 0
3 years ago
A polynomial is factored using algebra tiles.
melisa1 [442]

NOOO the answer is B on EdgenA polynomial is factored using algebra tiles.

What are the factors of the polynomial?

(x − 1) and (x + 3)

(x + 1) and (x − 3)

(x − 2) and (x + 3)

(x + 2) and (x − 3)uity

3 0
3 years ago
Read 2 more answers
A sample is BEST defined as _________.
Thepotemich [5.8K]

Answer:

(B) A selected group of participants that is representative of a larger population

Step-by-step explanation:

A sample statistic is a piece of information that you get from a fraction of the population. This information is representative of a larger population.

For example, someone wants to conduct a survey about the most popular NFL team in Syracuse, NY, if it is the Buffalo Bills or the New York Giants. This person is not going to ask each person for whom they cheer. They are going to collect data from a fraction of the population and this data will be expanded to include the entire population.

So, the correct answer is:

(B) A selected group of participants that is representative of a larger population

7 0
3 years ago
ILL MARK AS BRAINLESS PLS HELP HURRY
lina2011 [118]

Answer:

white to grey is 13:12

Step-by-step explanation:

The grid has 25 squares, shade 12 of them grey

5 0
3 years ago
!!!!!!!!!! !!!!!!!!!!!!
jeyben [28]

Answer:

B

Step-by-step explanation:

6.5 * 24 = 156

Therefore B

4 0
3 years ago
Other questions:
  • It takes Wayne 1/0 of an hour to walk a 1/6 mile park loop. What is Wayne's unit rate in miles per hour?
    7·1 answer
  • Z is centroid of triangle RST. What is RW, if RV=4x+3, WS=5x-1, and VT=2x+9?
    6·1 answer
  • In which quadrant of the coordinate graph does point J lie?
    6·1 answer
  • .. Carmen bakes and sells pies. She sells each pie for $12.99. The ingredients for 1 apple
    6·1 answer
  • Which one gives a pair of equivalent numerical expressions that show the Distributive Property?
    5·2 answers
  • What is the answer to 98=3y-4
    12·2 answers
  • Give a real world example for when you would
    10·1 answer
  • Mr. Moore drove the first half of his journey at an average speed of 96 km/h for 2 hours.
    13·2 answers
  • Factor g(x) =6x^3 +13x^2 -2x -1 if (2x + 3) is a factor.​
    6·1 answer
  • Please please help and show how you got the answer! I WILL MARK YOU AS BRAINLIEST
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!