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
ehidna [41]
3 years ago
6

The height of the javelin above the ground is symmetric about the line t = seconds. The javelin is 20 feet above the ground for

the first time at t = seconds and again at t = seconds

Mathematics
1 answer:
Levart [38]3 years ago
6 0
I FOUND YOUR COMPLETE QUESTION IN OTHER SOURCES.
 PLEASE SEE ATTACHED IMAGE.

 Part 1:

 we must see in the graph the axis of symmetry of the given parabola.
 The axis of symmetry is the following vertical line:
 t = 2

 Answer:
 
The height of the javelin above the ground is symmetric about the line t = 2 seconds:

 Part 2:

 we must see the time t for which the javelin reaches a height of 20 feet for the first time.
 We have that when evaluating t = 1, the function is:
 h (1) = 20.

 To do this, just look at the graph.
 Then, we must observe the moment when it returns to be 20 feet above the ground.
 For this, we have from the graph that:
 h (3) = 20 feet

 Therefore, a height of 20 feet is again reached in 3 seconds.
 Answer:
 
The javelin is 20 feet above the ground for the first time at t = 1 second and again at t = 3 seconds

You might be interested in
I have 5 apples I eat 5 how many do I have
valkas [14]

Answer:

You clearly have 0 left. Save your apples.

Step-by-step explanation:

5 - 5 = 0

5 0
3 years ago
Read 2 more answers
Answer this, pic below.
Bad White [126]

Answer:

constant

Step-by-step explanation:

8 0
3 years ago
Luke is swimming in a river with a current flowing west to east at a constant speed of 3.5 meters/second. Assume that Luke's wat
Nitella [24]
Decompose each velocity in its i and j - coordinates.


1) River's velocity


3.5 m/s, west fo east = 3.5i + 0j


2) Luke's velocity

5m/s, 60° east of north

5* sin(60°) i + 5*cos(60°) j = 4.33 i + 2.5 j


3) Resultant velocity

[3.5i + 0j] + [4.33i + 2.5j] = 7.83i + 2.5j


resultant speed = √[ (7.83)^2 + (2.5)^2 ] = 8.22 m/s


angle = arctan(2.5 / 7.83) = 17.7° north of east (equal to 72.3° east of north).

6 0
3 years ago
Read 2 more answers
Please help need answer please
DerKrebs [107]

it would be c 9/25 and 9/25

7 0
3 years ago
R is the interior of angle TUV. The measure of RUV=30degrees, the measure of TUV=3x+16, and the measure of TUR=x+10. Find x and
choli [55]

Given

R is the interior of ∠ TUV.

m∠ RUV=30degrees, m∠ TUV=3x+16, and m∠ TUR=x+10.

Find the value of x and the m ∠TUV.

To proof

As given in the question

m ∠TUV=3x+16, and m ∠TUR=x+10

thus

m∠ RUV =  m∠ TUV - m∠ TUR

            = 3x + 16 - x -10

            = 2x + 6

As given

m ∠RUV=30°

compare both the values

we get

30 = 2x + 6

24 = 2x

12 = x

put this value in the m ∠TUV= 3x+16

m ∠TUV= 12× 3 +16

            = 52°

Hence proved


7 0
3 years ago
Other questions:
  • A pole that is 3.2m tall casts a shadow that is 1.74 m long. At the same time, a nearby tower casts a shadow that is 48.25 m lon
    9·1 answer
  • 2+2x2^a x b */7 help me.
    10·1 answer
  • What is f(x) = 2x2 + 28x – 5 written in vertex form? f(x) = 2(x + 7)2 – 19 f(x) = 2(x + 7)2 – 103 f(x) = 2(x + 14)2 – 14 f(x) =
    10·2 answers
  • Gas is 2.10$ per gallon and your car gets 32 miles per gallon how much your gas cost
    8·1 answer
  • A group of students were surveyed to find out if they like bike riding and/or roller skating as a hobby. The results of the surv
    8·1 answer
  • The speed limit on a city road is 40 miles per hour.Which inequality best represents the speed s a person may drive in this neig
    13·2 answers
  • The table shows your scores in a skateboarding competition. The leader has 311.62 points. Select the equation that you can use t
    11·1 answer
  • I WILL PICK BRAINLEIST!!!!!!!!! + 15 points
    6·1 answer
  • 15-2X = -45 how do I show My work for this?
    7·2 answers
  • In ordered pair (x,y) ,x is called
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!