Answer:
Because the kind of compounfds that you try to determine using paper chromatography (organic compounds) are usually not soluble in water. Furthermore, water could react chemically with some of this compounds, because it's a very reactive molecule. You need organic solvents that are mostly inert.
Answer: x= -100
Step-by-step explanation:
X/5=-14-6
X/5=-20
X=-100
Answer:
x^4 - 2x^3 - 29x^2 - 42x
Step-by-step explanation:
Equal all the zeros to x then move them over.
x=7,x=-3,x=0,x=-2
x-7,x+3,x+0,x+2
Then multiply each factor
(x-7)(x+3)(x)(x+2)
x^4 - 2x^3 - 29x^2 - 42x
Step-by-step explanation:
we know,
volume of pyramid = 1/3 × base area × height
so,
→ 1/3 × 120 × 9
→ 40 × 9 = 360 ft
so the volume of the pyramid is 360 ft².
base area = length × slant height
so, 12 × 10 = 120
<em>hope </em><em>this</em><em> answer</em><em> helps</em><em> you</em><em> </em><em>dear.</em><em>.</em><em>.</em><em>.</em><em>take </em><em>care </em><em>and </em><em>may</em><em> u</em><em> have</em><em> a</em><em> great</em><em> day</em><em> ahead</em><em> </em><em>dear </em><em>!</em>
Answer:
630 desks
Step-by-step explanation:
x=25
y=30
total desks = 25*24+30
total desks = 630
