A company sells an inexpensive accounting program for home computers. If it can sell \( x \) programs per week at \( p \) dollars each, according to the formula \( x=320-10 p \), and the cost to produce \( x \) programs is \( C(x)=5 x+650 \), find \( P(x) \) and \( P(70) \).

antiolerixative \( f(x)=-\sec ^{2} \frac{3 n}{2} \)

References - At least 4 sources of reference (Study guide, textbooks, internet, etc.) must be included in you bibliography. Information quoted/paraphrased from sources listed in your bibliography must be referenced in-text. The Harvard system of referencing must be used. It is imperative that students proof-read and edit their projects prior to submitting it. Projects must be free from errors and of a professional standard.

Rappresenta l'ellisse di equazione \( 3 x^{2}+4 y^{2}-6 x+24 y+27=0 \) e determinane l'eccentricità, le coordinate dei fuochi e l'equazione della retta tangente nel punto di ordinata -3 e di minore ascissa. \[ \left[e=\frac{1}{2} ; F_{1}(0 ;-3), F_{2}(2 ;-3) ; x=-1\right] \]

a) \( -3^{2}+(-3)^{2}= \)

.5 จงหาค่า \( m \) ที่ท่าให้เวกเตอร์ \( \vec{u}=\hat{i}-2 \hat{j}+\hat{k}, \bar{v}=\hat{i}+2 \hat{j}-3 \hat{k} \) และ \( \bar{w}=3 \hat{i}+m \hat{j}+\hat{k} \) อยู่บนระนาบเดียวกัน