Chemistry
I had a 1.094g of mystery Alum. "AB(SO4)c. dH2O" (I assume that that the Alum is KAl(SO4)2-12H2O but we don't know A B c or d, we do know that mass percent of water is 51.9) After processing the alum (Ba(NO3)2 and HNO3 through a gooch crucible) we end up with 1.7...
Algebra II-please check
Write the polynomial in simplest form with roots 4, 5i and -5i(multiply it out so no parentheses remain (x-4)(x+5i)(x-5i)(NOT SURE ABOUT THIS ONE) (x-4)(x^2-25i^22) (x-4)(x^2+25) x^3+25x-4x^2-100 x^3-4x^2+25x-100 Is this correct
Algebra II-Please check fpr explanation
okay-thank you I got it now
Algebra II-Reiny-Please check fpr explanation
So if I change the formula to = (-1), then I have to change the a^2 to be under the "x" is that correct? Thank you for your help
Algebra II-Please check fpr explanation
I forgot one question-in a hyperbola, the "a^2" is always under the first variable, whether it be "x" or "y", correct
Algebra II-Please check fpr explanation
I have a question concerning this problem:I just want to make sure my formulas are correct before I do problem It is a hyperbola equation (y-4)^2/49 - (x-6)^2/72 = 1 1.It is a vertical hyperbola, correct? 2. the a^2 is 49, correct? 3. the b^2 is 72, correct? 4. I find the foci...
Materials Engineering
ABS resins = acrylonitryl, butadiene and styrene
maths
Can you tell me how you arrive at the answer to this question: if you multiply meby2, I become a number greater than 20and less than 40. If you multiply me by 6 I end in 8. If you multiply me by4,I end in 2.
math
can someone explain how 1020 is the answer, please?? thank you!
chemistry
Predict the products and then write the complete balanced chemical equation with states of matter: 1. Sulfuric Acid and sodium hydroxide 2. Aluminum and copper (II) sulfate 3. Silver nitrate and iron (III) chloride 4. Magnesium heated 5. Aluminum oxide
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