math
posted by momo .
Hints to solve following nonlinear equation please?
y=4.9x^2+20x+10
9.8x+y=20

substitute y = 20  9.8x
into the first equation:
20  9.8x = 4.9 x^2 + 20x + 10
4.9 x^2  29.8x + 10 = 0
x = 5.725 or 0.356
and you can get y.
These are strange equations to "solve" since one is the equation of motion of a body, and the other is the equation of its velocity.
Respond to this Question
Similar Questions

Math
solve the equation 20x^3 +44x^2 17x 5 given that 5/2 is a zero of f(x) 20x^3 +44x^2 17x 5 I used synthetic division and got 20x^26x2=0 took 2 and divided it out of that equation 2(x+5/2)=10x^2 3x1 then i factored it out the … 
math
Please need help on this Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate. f(x)=10²+5 find f(2) and f(2)  … 
AlgebraPlease check
5  sqrt of 20x + 4 >= 3 5 20x + 4 >= 3 54  20x >= 3 1  20x >= 31 20x >= 4 x<= 15 Possible answers are x<=3 1/5 <= x<= 3 x >= 1/5 x >= 0 I think it is 1/5<=x<=3 because both solutions … 
Math 116
Create an equation of a nonlinear function and provide one positive and one negative value for x. Please show steps in how to solve it as well. 
college alegebra
solve the following equation in the real number system 3x^3  20x^2 + 29x +12 = 0 Ok I thought I knew how to do this but I guess I don't. Help me! Please! 
Math
Solve the equation below for x 20x+5x20=21x+4 Show your work. PLEASE HELP 
Math
Find the intersection of two lines. i have the answer just please tell me how it was made 4x3y4=0 , 4x+2y+5=0 5y/5 = 9/5 y= 9/5 4x3(9/5)4=0 5(4x+27/54=0) 20x+2720=0 20x+7=0 20x/20=7/20 x=7/20 (7/20, 9/5 
maths
1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2  6x  40 = 0 (ii) 3x^2 + 20x  7 = 0 (b) For each question in part (a), check your solutions by substituting them back … 
maths
1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2  6x  40 = 0 (ii) 3x^2 + 20x  7 = 0 (b) For each question in part (a), check your solutions by substituting them back … 
maths
1a) Solve the each of these equations by factorising the left hand side into a product of linear factors: (i) x^2  6x  40 = 0 (ii) 3x^2 + 20x  7 = 0 (b) For each question in part (a), check your solutions by substituting them back …