Topic
Q:
\( \int _{}^{}\frac{1dx}{4x^{2}+9} d \)
Q:
\( \left\lvert\, \begin{array}{l}2 x y=12 \\ \text { Direct variation } \\ \text { Constant of variation: } k=\square \\ \text { Constant of variation: } k=\square\end{array}\right. \)
Q:
A 7 A regular hexagon and a regular pentagon have a common edge.
Work out the value of \( a \).
Q:
1. \( a^{2}-2 a b+b^{2} \)
Q:
ASK YOUR TEACHER \( [ \) PRACTICE ANOTHER
\( \frac{4}{1-\sqrt{3}} \)
Simplify by rationalizing the denominator.
\( \frac{4}{2} \)
Q:
For each equation, determine whether it represents a direct variation, an inverse variation, or neither.
Find the constant of variation when one exists and write it in simplest form.
\( 8 y=5 x \).
Direct variation
Constant of variation: \( k=\square \)
Neither variation
Q:
b. Para hallar la altura de un globo, se realizaron las
mediciones indicadas en la figura. ¿Cuánto dista el
slobo del punto \( A \) ? ¿Cuánto del punto \( B \) ? ¿A que
altura está el globo?
Q:
What value of \( b>-1 \) maximizes the integral?
\( \int_{-1}^{b} x^{2}(4-x) d x \)
Q:
Al reducir la expresión CscaTanaCosa-Csc \( 2 a ~ a ~ u n a ~ s o l a ~ f u n c i o ́ n ~ t r i g o n o m e ́ t r i c a ~ s e ~ o b t i e n e: ~ \)
\( 2 \operatorname{sen}^{2} a \)
\( -\sec ^{2} a \)
\( -\cot ^{2} a \)
Q:
\( 7 x=\frac{14}{y} \)
Direct variation
Constant of variation: \( k=\square \)
Inverse variation
Constant of variation: \( k=\square \)
Neither
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