Identify the double displacement reaction.

2NH3 + H2SO4 ⟶ (NH4)2SO4
2NaBr + Ca(OH)2 ⟶ CaBr2 + 2NaOH
2NO2 ⟶ 2O2 + N2
3Pb + 2h3PO4 ⟶ 3H2 + Pb3(PO4)2

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)

answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

hope this !

x:       y:  

-1         4

0         4

1         6

2         18

3         20  

it's possible to build a triangle with side lengths of 3, 3, and 9.- true ( b.)