omg1234567
omg1234567 omg1234567
  • 23-05-2016
  • Mathematics
contestada

HELP WANTED ASAP PLEASE!!!!

HELP WANTED ASAP PLEASE class=
HELP WANTED ASAP PLEASE class=
HELP WANTED ASAP PLEASE class=

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 29-05-2016
21. x^2 + 9x - 14 = 0
x^2 + 9x = 14
x^2 + 9x + (4.5)^2 = 14 + (4.5)^2
(x + 4.5)^2 = 14 + 20.25 = 34.25
x + 4.5 = + or - sqrt(34.25)
x = + or - sqrt(34.25) - 4.5
x = sqrt(34.25) - 4.5 or -sqrt(34.25) - 4.5
x = 5.85 - 4.5 or -5.85 - 4.5
x = 1.35 or -10.35

Answer: the last option.
Answer Link

Otras preguntas

15% of 20 is what number
what is the difference between the exponets 4x and x4
a linear system with no solution consists of the equation y=4x-3 and a second equation of the form y=mx+b. what can you say about the value of m and b ? explain
Which states' delegates most strongly opposed the Virginia Plan? A.) large states B.) northern states C.) small states D.) southern states slave states
How did Thomas Paine's pamphlet, Common Sense, influence American Colonial thinking about British rule?
In ΔABC, if m∠A = 43° and m∠C = 66°, then find m∠B. (Points : 3) 71° 47° 114° 109°
How do I solve this equation? 3|13-2t|=15
the new pencil is 19 centimeters long how many millimeters long with a pencil
Need help before 1/27/2015 Which word is a contraction? A. its B. it's C. her's D. his
Which function are nonlinear Choose all that are correct