dejabo124
dejabo124
19-07-2019
Mathematics
contestada
Why is the x intercept wrong?
Respuesta :
jpyon3019
jpyon3019
19-07-2019
It’s wrong because it isn’t one of the zeroes for the equation
f(x)=-16x^2+64x+80
Divide by -16
x^2-4x-5
(x-5)(x+1)
Set them up to zero
x-5=0. x+1=0
x=5. x=-1
5 and -1 are your possible zeroes
Answer Link
VER TODAS LAS RESPUESTAS ( 58+ )
Otras preguntas
How did the proclamation line help to push the colonies toward war with Britain?
if sin (α+β) = 1, sin (α-β) = 1/2 then tan (α+2β) tan(2α+β) = a. 1 b.-1 c.0 d. none
9 students volunteer for a committee. How many different 6-person committees can be chosen?a. 1 b. 362,880 c. 60,480 d. 84
what would a geographer conducting research be most likely to do
If the substances below, which is best able to conduct electricity? a. KBr(l) b. NaC₂H₃O₂(s) c. C₆H₁₂O₆(aq) d. CH₃OH(aq) e. NaCl(s) It would be great if you c
How do you simplify (9x^8 y^3)^1/2
John is twice as old as her sister Jane. Four years ago, John was three times as old. What is John’s current age?
if sin (α+β) = 1, sin (α-β) = 1/2 then tan (α+2β) tan(2α+β) = a. 1 b.-1 c.0 d. none
solve for y: 3/4(5x-y)<3
Sienna has 80 yards of fencing to enclose a rectangular area. Find the dimensions that maximize the enclosed area. What is the maximum area?
