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
svp [43]
3 years ago
11

If an arrow is shot upward on Mars with a speed of 56 m/s, its height in meters t seconds later is given by y = 56t − 1.86t2.

Mathematics
1 answer:
Zina [86]3 years ago
3 0

Answer: (a) (i)50.42 m/s (ii) 51.35 m/s (iii) 52.094 m/s (iv) 52.2614 m/s (v) 52.27814 m/s

(b) 54.14 m/s

Step-by-step explanation:

The average speed over the given time interval [a,b]: = \frac{y(b)-y(a)}{b-a}

Given: If an arrow is shot upward on Mars with a speed of 56 m/s, its height in meters t seconds later is given by y = 56t − 1.86t^2.

(a)

(i) average speed = \frac{y(2)-y(1)}{2-1}

=\frac{56(2)-1.86(2)^2-(56(1)-1.86(1)^2)}{1}

=50.42 m/s

(ii) average speed = \frac{y(1.5)-y(1)}{1.5-1}

=\frac{56(1.5)-1.86(1.5)^2-(56(1)-1.86(1)^2)}{0.5}

=51.35m/s

(iii) average speed = \frac{y(1.1)-y(1)}{1.1-1}

=\frac{56(1.1)-1.86(1.1)^2-(56(1)-1.86(1)^2)}{0.1}

=52.094m/s

(iv) average speed = \frac{y(1.01)-y(1)}{1.01-01}

=\frac{56(1.01)-1.86(1.01)^2-(56(1)-1.86(1)^2)}{0.01}

=52.2614
m/s

(v) average speed = \frac{y(1.001)-y(1)}{1.001-01}

=\frac{56(1.001)-1.86(1.001)^2-(56(1)-1.86(1)^2)}{0.001}

=52.27814
m/s

(b) y(1)=56(1)-1.86(1)^2

=56-1.86

= 54.14 m/s

You might be interested in
What is down payment with regard to buying a house?
Lyrx [107]
<span>The down payment is an initial payment made when something is bought on credit.

It usually depends on the type of house or any other other form of object.</span>
7 0
3 years ago
Help a girl out!!! give brainliest!!
slavikrds [6]

Answer:

-1 i believe because that is the only x intercept. i apologize if this is wrong

Step-by-step explanation:

4 0
3 years ago
If f(x)=3x^2-4x+9, find the f(2)​
kipiarov [429]

Answer:

13

Step-by-step explanation:

3(2)(2) -4(2)+9

12 -8 +9= 13

6 0
2 years ago
Read 2 more answers
Which is the best estimate for the mass of a baseball? A. 25 grams B. 25 kilograms C. 225 kilograms D. 225 grams i need the answ
Paraphin [41]
Im going to say B but im not 100 percent sure
5 0
3 years ago
Read 2 more answers
Simplify the rational expressions. State any excluded values. Show your work.<br> (x-2)/(x^2+3x-10)
Elan Coil [88]
1/(x+5) because the (x-2) is canceled from both the numerator and denominator of the equation.
7 0
3 years ago
Other questions:
  • Janey's height from age 7 to 12 can be modeled by the function h(t)=45+8/5t, where h(t) is Janey's height in inches and t is tim
    10·1 answer
  • A cereal box has dimensions of 2 in., 1 5 3 in., and 3 10 4 in.If the box contains 8 servings, how much volume does each serving
    14·1 answer
  • Kim has worked in the tech industry for some time and would like to start consulting. In opening her new business, she will need
    11·2 answers
  • Charlie bought 2 1/2 pound bag of oranges for $3.75. What is the cost of one pound of oranges
    14·2 answers
  • Can anyone pls help me I really need help pls help me I will mark them as brainiest pls!!! Can u do it in a paper and then send
    6·1 answer
  • 7x + 17<br> 100°<br> Solve for X
    14·1 answer
  • What is the local max and min
    14·2 answers
  • Plsss help lollll :)))
    14·1 answer
  • Write a/-b in standard form
    8·1 answer
  • Given A(8,3), B(4,8), C(4,4) and D(8,-1) find the slope of AB
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!