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]
2 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]2 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
Help with this system of equations !! y = 3x + 21; y = -7x + 2
s2008m [1.1K]
C) x = -19/10 because when solving it with substitution u get x=-19/10 & y=153/10
3 0
3 years ago
Pls help me will give brainliest
Alla [95]
Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
7 0
3 years ago
Simplify.<br> (2 x 108) + (4 * 103)<br> Give the answer in scientific notation
lions [1.4K]

Answer:

628

Step-by-step explanation:

216+412 = 628

First you get rid of the brackets by solving what's in them. Then you just add up the numbers and BOOM. The equation is solved. :-)

6 0
3 years ago
What is the period of y=4cos5x
kvasek [131]

you take 2pi and divide it by bits stolen from the equation its explained more in the screennshot

5 0
2 years ago
Archie is building a model of the Titanic. He is using a scale factor where 2 inches represents 50 feet. If the Titanic was 882.
wel
D 35.31 is the correct answer
4 0
3 years ago
Read 2 more answers
Other questions:
  • Select the equation in which the graph of the line has a negative slope, and the y-intercept equals 10. Answer 10x + 5y = –25 5x
    14·1 answer
  • Solve each equation. Write null if the equation has no solution. Write all if all numbers solve the equation. Write fractions in
    15·1 answer
  • Find two different unit rates to represent this problem . Show your work
    9·1 answer
  • How do i solve this problem? ursula mixed in 3 1/8 cups of dry ingredients with 1 2/5 cups of liquids ingredients.
    11·1 answer
  • Solve the decimal division application round to the nearest 10th if needed there are approximately 39.37 inches in 1 m determine
    8·1 answer
  • Harry worked the following hours in a week. What are the average hours worked for these five days?
    13·2 answers
  • A recipe use 5 cups of flour for every 2 cups of sugar .a.how much sugar is used for 1 cup of flour? b.how much flour is used fo
    10·1 answer
  • Simplify 4x^2 / 3 X 6/ 8x
    9·2 answers
  • What is the expected value of X
    8·1 answer
  • The circumference of a circle is 40.8 centimeters.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!