Asked by sue please help!
Select the appropriate values of x that are solutions to f (x)=0, where f ( x ) =-7x^2+4x+9
(-0.78,0.44)
(-7,4)
(-0.57,-1.29)
(-0.88,1.46)
Select the appropriate values of x that are solutions to f ( x ) =-5x^2+8x+5
(2.08,-0.48)
(-5,8)
(-1.60,-1.00)
(-1.00,1.60)
(-0.78,0.44)
(-7,4)
(-0.57,-1.29)
(-0.88,1.46)
Select the appropriate values of x that are solutions to f ( x ) =-5x^2+8x+5
(2.08,-0.48)
(-5,8)
(-1.60,-1.00)
(-1.00,1.60)
Answers
Answered by
Reiny
-7x^2 + 4x + 9 = 0
7x^2 - 4x - 9 = 0
using the formula ...
x = (4 ± √268)/14
= appr 1.455 or x = - .884
the only one that comes close is the last choice
Do the other one in the same way
7x^2 - 4x - 9 = 0
using the formula ...
x = (4 ± √268)/14
= appr 1.455 or x = - .884
the only one that comes close is the last choice
Do the other one in the same way
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.