Topic
Q:
The value of a car decreases exponentially over time. If the initial value is $20,000 and it depreciates by 15% each year, what will be its value after 2 years?
Q:
In a stack of red and blue T-shirts, blue T-shirts and red T-shirts are in the ratio \( 4: 3 \). If then
are 49 T-shirts, find the ratio of blue \( T \)-shirts to the total number of T-shirts-
Q:
Nếu \( x = 9 \), tính giá trị của \( \sqrt{x} \) và \( \sqrt[3]{x} \).
Q:
\( 41^{\circ} \) Let \( |x|=2 \) and \( |y|=4 \).
Calculate \( |3 x| ;|-5 y| ;|-3 x y| ;\left|\frac{5 x}{2 y}\right| \)
\( 2^{\circ} \) What is the sign of the following, knowing
that \( z \) is a strictly positive number?
\( |z| ;|-z| ;-|-z| ; z|z| ;(-z) \times|-z| \)
Q:
Exercice \( 1 / \) Calculer les expressions suivantes en donnant les étapes de calcul.
Exprimer ces résultats sous leur forme d'écriture scientifique.
\[ A=-5 \times 15^{-1}+4^{2}: 5 \]
\( B=40 \times 10^{12} \times 11 \times 10 \)
Q:
c. \( \frac{\sqrt[6]{36}}{\sqrt[3]{12}} \)
Q:
\( 41^{\circ} \) Let \( |x|=2 \) and \( |y|=4 \).
Calculate \( |3 x| ;|-5 y| ;|-3 x y| ;\left|\frac{5 x}{2 y}\right| \).
\( 2^{\circ} \) What is the sign of the following, knowing
that \( z \) is a strictly positive number ?
\( |z| ;|-z| ;-|-z| ; z|z| ;(-z) \times|-z| \)
Q:
\( \frac{5}{9} \) of a piece of metal weighs 7 kg . What is the weight of \( \frac{2}{7} \) of the metal?
Q:
\( \frac{5}{9} \) of a piece of metal weighs 7 kg . What is the weight of \( \frac{2}{7} \) of the metal?
Maths Matrix-VII
Q:
Какое из данных чисел принадлежит промежутку \( [5 ; 6] ? \)
\( \begin{array}{llll}\text { 1) } \sqrt{5} & \text { 2) } \sqrt{6} & \text { 3) } \sqrt{28} & \text { 4) } \sqrt{41} \\ \text { Ответ: } \square & & \end{array} \)
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