Topic
Q:
Two numbers have an absolute value of 4 . Which of the two numbers is farther from 1 on the
number line?
Q:
Find the exact value of the logarithm without using a calculator.
\[ \log _{3} 9 \]
\( \log _{3} 9=\square \)
(Type an integer or a simplified fraction.)
Q:
Two numbers have an absolute value of 4 . Which of the two numbers is farther from 1 on
number line?
Q:
2) \( 05^{\circ} \) termo da progressão geométrica a seguir é:
\[ (5,20,80, \ldots) \]
\( \begin{array}{llll}\text { a) } 320 & \text { b) } 640 & \text { c) } 1280 & \text { d) } 200 \\ \text { e) } 1200\end{array} \)
Q:
Write the expression as a sum and/or difference of logarithms. Express powers as factors.
\[ \ln \left(x^{12} \sqrt{4-x}\right), 0<x<4 \]
\( \ln \left(x^{12} \sqrt{4-x}\right)=\square \) (Simplify your answer.)
Q:
(1) \( 3 \cdot(2-3)+5= \)
(2) \( -1(3-4)+6(2-3+1)+7-1= \)
Q:
(1)) What is another way to describe the above equation?
\begin{tabular}{|l|}\hline (1) -8 and 8 are located at the same place on a number line. \\ (4) -8 and 8 are the same distance from 0 on the number line. \\ (4) -8 and 8 are equivalent. \\ (4) \( \quad 8 \) and 8 are positive integers. \end{tabular}
Q:
(4) Compare the two absolute values.
\( |-8||? \quad| 8 \mid \)
Q:
Evaluate the expression without using a calculator.
\[ \log _{7} 1 \]
\( \log _{7} 1=\square \)
(Type an integer or a simplified fraction.)
Q:
15. Simplifica as seguintes
\( 15.12 \sqrt{3}-8 \sqrt{3} \)
\( 15.2(\sqrt{2}-1) \times \sqrt{8} \)
\( 15.3 \sqrt{18} \times\left(\sqrt{2}+\sqrt{\frac{1}{2}}\right. \)
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