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Find k in the equation 4x2 + kx + 1= 0 so that it will only have one real root.

Find k in the equation 4x2 + kx + 1= 0 so that it will only have one real root.

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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1. Find k in the equation 4x2 + kx + 1 = 0 so that it will only have one real root.

2. If arc tan x + arc tan 1/3 = π/4, find the value of x

3. The number of board feet in a plank 3 inches thick, 1 foot wide, and 20 feet long
is:

 

4. A ladder 5 meter long leans on a wall and makes an angle of 30˚ with the
horizontal. Find the vertical height from the top to the ground. 

Find k in the equation 4x2 + kx + 1= 0 so that it will only have one real root. O 1 O 2 If arc tan x + arc tan 1/3 = T/4, find the value of x. О 12 О 13 О 14 О 15
Transcribed Image Text:Find k in the equation 4x2 + kx + 1= 0 so that it will only have one real root. O 1 O 2 If arc tan x + arc tan 1/3 = T/4, find the value of x. О 12 О 13 О 14 О 15
The number of board feet in a plank 3 inches thick, 1 foot wide, and 20 feet long is: 30 60 120 90 A ladder 5 meter long leans on a wall and makes an angle of 30° with the horizontal. Find the vertical height from the top to the ground. 2.5 meter 1.5 meter 2.0 meter 2.75 meter
Transcribed Image Text:The number of board feet in a plank 3 inches thick, 1 foot wide, and 20 feet long is: 30 60 120 90 A ladder 5 meter long leans on a wall and makes an angle of 30° with the horizontal. Find the vertical height from the top to the ground. 2.5 meter 1.5 meter 2.0 meter 2.75 meter
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