A. The discriminant is 81. The formula is b^2 - 4ac.
B. 2 answer and both will be rational due to the fact that the discriminant is a perfect square.
C. Solutions are 1/2 and -4. You can find using the quadratic formula.
<em>Hey</em><em>!</em><em>!</em><em>!</em>
<em>Here's</em><em> </em><em>your</em><em> </em><em>answer</em><em>:</em>
<h3>
<em><u>Domain</u></em><em><u>:</u></em><em><u>{</u></em><em><u>(</u></em><em>0</em><em>,</em><em>2</em><em>,</em><em>3</em><em>,</em><em>8</em><em>)</em><em>}</em></h3><h3>
<em>Range</em><em>:</em><em>{</em><em>(</em><em>2</em><em>,</em><em>3</em><em>,</em><em>7</em><em>,</em><em>9</em><em>)</em><em>}</em></h3>
<em>Hope</em><em> </em><em>it</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>. </em><em> </em><em> </em><em> </em><em> </em>
<h3>
<em>have</em><em> </em><em>a</em><em> </em><em>great</em><em> </em><em>day</em><em> </em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em></h3>
Answer:
you need to convert pounds to kilograms. 196 pounds is 88.904 kilograms. The directions tell you that 20 milligrams of the drug is to be administered for each kilogram of a person's weight. Now you need to multiply 88.904 by 20. That should give you 1778.08 milligrams of lincomycin. You would then mix 250 cc's of saline solution to the 1778.08 milligrams of lincomycin; but I think its just asking you how much lincomycin to administer.
at what rate per minute should the 250 cc solution be adminstered
A^2+b^2=c^2 so c^2=12^2+16^2 which then simplifies to c^2=144+256 then simplify that to c^2=400. After that take the square root of c^2 and the square root of 400. So your answer is c=20
Parentheses. Exponents. Multiplication Division. Addition Subtraction.
2) 6 x (11 - 5)- 7^2
6 x (6) - 7^2
6 x 6 - 49
36 - 49
-13
3) (40 - 2^2) / (-4 + 6)
(40 - 4) / (-4 + 6)
(36) / (2)
36/2
13/1
13
4) (66 - 6) / 6 - 2^2
(60) / 6 - 2^2
60 / 6 - 4
60 / 2
30 / 1
30
