Question and answer
Landon is standing in a hole that is 5.1 ft deep. He throws a rock, and it goes up into the air, out of the hole, and then lands on the ground above. The path of the rock can be modeled by the equation y = -0.005x2 + 0.41x - 5.1, where x is the horizontal distance of the rock, in feet, from Landon and y is the height, in feet, of the rock above the ground. How far horizontally from Landon will the rock land?
Question
Asked 8/30/2013 9:23:06 AM
Updated 7/2/2014 9:12:34 AM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [7/2/2014 9:12:34 AM]
Get an answer
Original conversation
User: 8x2 + 8x + 2 = 0

User: Landon is standing in a hole that is 5.1 ft deep. He throws a rock, and it goes up into the air, out of the hole, and then lands on the ground above. The path of the rock can be modeled by the equation y = -0.005x2 + 0.41x - 5.1, where x is the horizontal distance of the rock, in feet, from Landon and y is the height, in feet, of the rock above the ground. How far horizontally from Landon will the rock land?

Weegy: y = -0.005x^2 + 0.41x - 5.1. If y = 0, x = 66.7 or 15.3. The lower numberb will be when the rock goes through ground level on the way up, so the rock will land 66.7 feet away.
rugmaker|Points 3224|

User: c^2-10c=0

Weegy: The solutions of the equation c^2-10c=10 is: D. 0, 10
andrewpallarca|Points 24970|

User: Graph the set of points. Which model is most appropriate for the set? (–2, 10), (–1, 1), (0, –2), (1, 1), (2, 10)

Question
Asked 8/30/2013 9:23:06 AM
Updated 7/2/2014 9:12:34 AM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [7/2/2014 9:12:34 AM]
New answers
Rating
3
8x^2 + 8x + 2 = 0
divided by 2 on both sides the result is:
4x^2 + 4x + 1 = 0
(2x + 1)^2 = 0
2x + 1 = 0
x = -1/2
Added 7/2/2014 9:11:47 AM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [7/2/2014 9:21:24 AM]
Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
27,939,899
questions answered
GET
Answers.
GET THE APP.
weegy*
*
Get answers from Weegy and a team of really smart live experts.
S
L
P
C
Points 588 [Total 1632] Ratings 2 Comments 568 Invitations 0 Offline
S
R
L
R
P
R
P
R
R
R
R
P
R
P
Points 465 [Total 2474] Ratings 4 Comments 425 Invitations 0 Offline
S
L
Points 375 [Total 521] Ratings 1 Comments 365 Invitations 0 Offline
S
Points 34 [Total 34] Ratings 1 Comments 24 Invitations 0 Offline
S
Points 30 [Total 30] Ratings 3 Comments 0 Invitations 0 Offline
S
Points 20 [Total 20] Ratings 2 Comments 0 Invitations 0 Offline
S
L
R
P
Points 18 [Total 1381] Ratings 0 Comments 18 Invitations 0 Offline
S
Points 12 [Total 12] Ratings 0 Comments 2 Invitations 1 Offline
S
Points 12 [Total 12] Ratings 0 Comments 12 Invitations 0 Offline
S
Points 11 [Total 11] Ratings 1 Comments 1 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.