Over the last 3 evenings, Susan received a total of 98 phone calls at the call center. The third evening, she received 6 fewer calls than the first evening. The second evening, she received 2 times as many calls as the third evening. How many phone calls did she receive each evening? Number of phone calls the first evening: Number of phone calls the second evening: Number of phone calls the third evening:

\( \int e ^ { \sqrt[ 4 ] { x ^ { 9 } } } \frac { 3 \sqrt[ 4 ] { x } } { 9 } d x \)

SELF-ASSESSMENT 1 Idon't understand yet 21 can do it with help. 3 I can do it on my own. Find the value of \( x \) so that the function has the given value. \( \begin{array}{ll}\text { 5. } f(x)=6 x+9 ; f(x)=21 & \text { 6, } g(x)=-\frac{1}{2} x+3 ; 8(x)=-1\end{array} \)

18. Schreibe mit einem Dezimalbruch als Maßzahl. (1) Durchmesser eines roten Blutkörperchens: \( 7 \cdot 10^{-4} \mathrm{~cm} \) (2) Durchmesser eines bestimmten Bakteriums: \( 9,4 \cdot 10^{-5} \mathrm{~cm} \) (3) Tägliches Wachstum beim Kopfhaar: \( 2,5 \cdot 10^{-4} \mathrm{~m} \) (4) Täglicher Längenzuwachs eines Fingernagels: \( 8,6 \cdot 10^{-5} \mathrm{~m} \)

4 Work out \( -9+5 \)

(a) Cari. nilai bagi \( p \) jika pakși-x ialah tangen kepada graffungsikuadratik \( p x^{2}-24 x+p+7 \).