Seudónimo
Seudónimo
04-04-2016
Mathematics
contestada
How do I do this?!?! Pls help!!! 40 points!!
Respuesta :
KIT
KIT
04-04-2016
(2x + 16)(2x + 12) = 396
4x2
+ 24x + 32x + 192 = 396
4x2
+ 56x - 204 = 0
x2
+ 14x - 51 = 0
(x + 17)(x - 3) = 0
x + 17 = 0 v x - 3 = 0
x = -17 or x = 3
you can exclude negative value because x cannot be negative :)
Checking:
(16+2*3) * (12 + 2*3) is equal ?
396?
True
So the walkway size is:
22 x 18
Answer Link
VER TODAS LAS RESPUESTAS ( 19+ )
Otras preguntas
Let vec(w)=[[-13],[-5]],vec(v)₁=[[3],[3]],vec(v)₂=[[3],[-2]],vec(v)₃=[[-4],[3]]. Is vec(w) a linear combination of the vectors vec(v)₁, vec(v)₂ and vec(v)₃?
The personality trait refers to being honest, trustworthy, modest, compliant, and altruistic. Which of the following traits does it belong to ________. 1) Openn
Which of the following codes is correct? x is a randomly generated number. When x is greater than 4, then the variable y is equal to 3, otherwise it is equal to
Algebraically solve the equation, (3^(9x+2))²=3, for x. All answers should be exact. If there is more than one solution, separate them by commas.
What do the experiences described in "A Tree Telling of Orpheus" show about life? Question 6 options: a) the power of music b) the wisdom of stillness c) the
A leftward shift in the AD curve accompanied by a leftward shift of the AS curve will A. reduce the price level but have an uncertain effect on GDP. B. increa
The block has a mass of 150 kg and rests on a surface for which the coefficients of static and kinetic friction are μ=0.5 and μ=0.4, respectively. If a force F
Which logical fallacy is this statement an example of ________. "If you don't let me go to the party, I won't have any friends. If I don't have any friends, I'l
Which statement by a 22-yr-old female patient with cystitis indicates to the nurse that instruction regarding prevention of future urinary tract infections (UTI
In broth a crime "I couldn't understand why we'd stayed," Noah says after realizing he could have left. Why does Noah's mom choose to stay? What would you do in
