s3tar9faquatilli
s3tar9faquatilli
01-04-2017
Mathematics
contestada
Solve for z.
z^2+15z+14=0
Respuesta :
Аноним
Аноним
02-04-2017
z = {- 15 +- root of ( 225-56) } / 2
= {-15 +- 13 } / 2
= -14 or -1
so, z = -14 or -1
hope it helped
Answer Link
VER TODAS LAS RESPUESTAS ( 25+ )
Otras preguntas
23 grams of sodium reacts with 293 cm 3 of water that is initially at 298 k. it produces an enthalpy change of 197 kj. what is the final temperature of the wate
Rhiannon went to the doctor for an ultrasound. the doctor told rhiannon that her baby has a skeleton and muscles. the organism is in the _____ stage, and it is
Investors and financial analysts wanting to evaluate the operating efficiency of a firm's managers would primarily look at the firm's?
Fiscal policy is likely to be least effective a. when it is permanent. b. when it is automatic. c. during wartime. d. during normal economic times
A doubly charged ion with velocity 6. 9 × 106 m/s moves in a path of radius 30 cm in a magnetic field of 0. 80 t in a mass spectrometer. what is the mass of thi
A disadvantage most associated with the __________ research method is that people who know they are being studied may alter their normal behavior
At 2525 °c, what is the hydroxide ion concentration, [oh−][oh−] , in an aqueous solution with a hydrogen ion concentration of [h ]=1. 5×10−6[h ]=1. 5×10−6 m?
An 80 ev electron impinges upon a potential barrier 100 ev high and 0. 2 nm thick. what is the probability the electron will tunnel through the barrier?
The planning cycle is viewed as a linear process with a sequence of steps; however, it can also be considered cyclical so that at any point in the planning proc
When pcl5 solidifies it forms pcl4 cations and pcl6–anions. according to valence bond theory, what hybrid orbitals are used by phosphorus in the pcl4 cations?