Ley

1.What is the value of x-y if 5x-3y=3 and -x+3y=9 ? 2.Rewrite -2x^-1 /x^2y^-1 with positive exponents 3. What is the value of xy if x+5y=26 and -x+y=4 ?

1.To solve the linear system below, which substitution of unkowns is proper ? A.substitute 5x-16 for y in the first eqn B.substitute 5x+16 for y in the first eqn C.substitute 5x+12 for y in the first eqn D.substitute 7y-4 for x in the second eqn 2.A line...

What is an equation of a line perpendicular to the line with equation y = 1 - 3x a.y=-3x + 5 b. y=3x + 5 c.y=-1/3x + 5 d. y=1/3x + 5 To solve the linear system below, which substitution of unkowns is proper ? x + 4y= -6 5x - 3y = -16 a. substitute -4y-6 f...

1. When adding the sodium borohydride solution to the vanillin solution, why are you told to do so in a dropwise fashion? -So you don't accidentally spill any sodium borohydride -To prevent formation of unwanted vanillin byproducts -to prevent formation o...

Yes,but is that the answer to#2, because the multiple choice answers are:A.-2x^3y B.2x^3/y C. -2y/x^3 D.-2y/x E.2y/x Which one is it,please help me Reiny.

Thank you Reiny

To rbowh I do not know how to solve them, that is why I'm asksing for help,

Question: When adding sodium borohydride solution to the vanillin solution, why are you told to do so in a dropwise fashion? A. So you don't accidentally spill any sodium borohydride B. To prevent formation of unwanted vanillin byproducts C. To prevent fo...

We have the same problem. My prof gave me the output program but not the input. :3

18

YOU GUYS LIED the correct answers are 1: B 2: C 3:B 4:D 5:B

Step 1: 1000 - 200 = 800 Step 2: 800 x 0.02 = 16 Step 3: 800 - 16 = 784