Ask a New Question
Search
Questions and answers by
Athenal
Questions (3)
Someone help me!!
square root = sqrt (5x^2-5x-10)sqrt(x+7) + (2x+6)sqrt(x+2) >= x^3+13x^2-6x-28 thank you!
1 answer
578 views
Someone help me!!
square root = sqrt (5x^2-5x-10)sqrt(x+7) + (2x+6)sqrt(x+2) >= x^3+13x^2-6x-28
2 answers
593 views
Someone help me!!
square root = sqrt (5x^2-5x-10)sqrt(x+7) + (2x+6)sqrt(x+2) >= x^3+13x^2-6x-28
0 answers
477 views
Answers (21)
(x+7).(x+9) x = 8 (8+7).(8+9)=255
- The four people eating bread : 15-3 = 12 pieces - Pieces of bread for each person to eat : 12 divided by 4 = 3 pieces
12:05 >>> 42,598 feet 1:00 >>> 43 feet
5 children = > $50 $170 - $50 = $120 8 weeks $120 1 week = > $15 5 children 15/5 = 3$ each child must contribute $3 per week .
y.2^x=256 y = 1 ft ==> x= log_2_(256) = 8
15 miles west -------- ------------------- > < ---- ---- 5 miles east 15-5 = 10 miles 10 miles far is she from her starting point ?
Isosceles triangle
Julia's age : a year-old Wendy is twice the age of Julia = > Wendy = 2a year-old Dad's age : b year-old " The man is now five times as old as Wendy " b / 2a = 5 b = 10a " In four years he will be six times as old as Julia " : ( B + 4 ) / (a + 4 ) = 6 + 4 =
put two unknowns x and y : x is the number of liters of gasoline to move in the city y is the number of liters of gasoline to move on the highway x + y = 12.857 gallons 19x + 34y = 12,857.27 = 347.139 | 19x + 34y = 347.139 | x + y = 12.857 x = 6 gallon y =
sorry, I typed wrong 3 hours and 48 minutes = 228 minutes = 3,8 hours 90x + 37,5y = 300 x + y = 3.8 [(sorry)] equations two unknowns x = 3 y = 0.8 = > 3 hours away on the plains = > 0.8 hours to go through the mountains 0.8 hours = 0,8.60 = 48 minutes
3 hours and 48 minutes = 228 minutes = 8 hours 90x + 37,5y = 300 x + y = 3.8 equations two unknowns x = 3 y = 0.8 = > 3 hours away on the plains = > 0.8 hours to go through the mountains 0.8 hours = 0,8.60 = 48 minutes
green -5 hazel -7 total 12 probability: 12/30
y=1.(1/2)^x/600 x: is time
N2+ O2 2NO 5,88 16,2 0 0,24 10,56 11,28 K = (11,28^2)/(0,24.10,56) = 50,2
y=722(1/2)^1/71x 1/71x ??? I do not understand why this is so
perchloric acid ( HClO4 ) HClO4 --- > H + + ClO4- pH = 4.03 = > [ H + ] = 10 ^ -4.03 n ( HClO4 ) = V [ H + ] m ( HClO4 ) = 100,5.V . [ H + ] = 100,5.3,86.10 ^ -4.03 = 0.03620373409 ...
The first possibility : First : 8 = > 1 Monday : 7 = > 1 Total 1 case The second possibility First : 2,4,6 Second: 7.8 Total : 3x2 = 6 case Overall both cases = 7 Probability : 7 / ( 8C2 ) = 0.25 - > 25 %
the formula for calculating the number of moles: n=m/M The formula for calculating the volume (at STP): v=n.22,4 n(Zn)=1000.1000/97 moles n(SO2)=n(Zn) = 1000.1000/97 moles V(SO2) = 1000.1000.22,4/97=230927,8351 (in litres)
I think you get it right
H2SO4 is catalyst H2SO4 + KMnO4 + FeSO4 = Fe2(SO4)3 + H2O + MnSO4 + K2SO
glucose C6H12O6 C6H12O6 = 2C2H5O6 + 2CO2
