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(4) Show that in general the sum of the roots of a quadratic equation ax? + bx +e=0 b is --whereas the product of the roots of a quadratic equation is

(4) Show that in general the sum of the roots of a quadratic equation ax? + bx +e=0 b is --whereas the product of the roots of a quadratic equation is

College Algebra
College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter3: Functions
Section3.2: Domain And Range
Problem 61SE: The cost in dollars of making x items is given by the function Cx)=10x+500. a. The fixed cost is...
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Question four please
(3) If a projectile is launched into the air at 29.4 feet per second from aheight of 60 feet, Its height (in feet) is given by S) = 60 + 29.4x – 9.8x", where x is in seconds. Showing all working, determine: (a) How long will it take the projectile reach its maximum height? (b) What is the highest height that the projectile can attain? (4) Show that in general the sum of the roots of a quadratic equat ion ax? + bx+c = 0 whereas the product of the roots of a quadratic equation is- (5) The present value that willgive a future value S in 4 years with interest compo und ed annually varies inversely as the fo urth power of 1 + r, where r is the annual interest rate If the present value of $1525.79 gives a future value of $2000, what would be the present value of $10,000 in the future?
Transcribed Image Text:(3) If a projectile is launched into the air at 29.4 feet per second from aheight of 60 feet, Its height (in feet) is given by S) = 60 + 29.4x – 9.8x", where x is in seconds. Showing all working, determine: (a) How long will it take the projectile reach its maximum height? (b) What is the highest height that the projectile can attain? (4) Show that in general the sum of the roots of a quadratic equat ion ax? + bx+c = 0 whereas the product of the roots of a quadratic equation is- (5) The present value that willgive a future value S in 4 years with interest compo und ed annually varies inversely as the fo urth power of 1 + r, where r is the annual interest rate If the present value of $1525.79 gives a future value of $2000, what would be the present value of $10,000 in the future?
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