| Topic | Problem | Solution |
|---|---|---|
| None | What is the inverse of the function $f(x)=\frac{1… | Let's replace $f(x)$ with $y$ for simplicity, so we have $y=\frac{1}{9}x+2$ |
| None | Prove $n^{2}+n$ is always even. | Given the expression \(n^{2}+n\), we can rewrite this as \(n(n+1)\). |
| None | Question \[ \begin{array}{l} f(x)=\left\{\begin{a… | A questão está pedindo o valor da função f(x) em x=4. Olhando para a definição da função, vemos que… |
| None | Hi-Tek Manufacturing. Incorporated, makes two typ… | Calculate the total revenue for B300: \(60000 \times 19 = 1140000\) |
| None | 6. Determine the domain and the range of each rel… | The domain of a function is the set of all possible input values (often the 'x' variable), which pr… |
| None | How many square inches are in 60 square feet? | First, we need to know the conversion factor between square feet and square inches. There are 12 in… |
| None | Write an equation of the line containing the give… | \(7x+y=2\) has slope \(-\frac{7}{1}\), so the line perpendicular to this line has slope \(-\frac{1}… |
| None | $\begin{array}{l}21 \\ \times 3\end{array}$ | \(21 \times 3\) |
| None | What whole number is equal to $\frac{5}{2^{-5}} ?$ | First, we can simplify the expression by converting the negative exponent to a positive exponent in… |
| None | What is the value of $a$ if $(a, b)$ is the solut… | We are given a system of two linear equations with two variables, $x$ and $y$. We are asked to find… |
| None | $(x+3)^{2}=$ | Expand the given expression: $(x+3)^{2} = (x+3)(x+3)$ |
| None | Considere uma escada de 7 metros, apoiada em uma … | Considere uma escada de 7 metros, apoiada em uma parede. A escada está sendo empurrada de forma que… |
| None | A copper statue has a volume of $35 \mathrm{~cm}^… | Given the mass of the copper statue as \(m = 312.9 \mathrm{~g}\) and the volume as \(V = 35 \mathrm… |
| None | a $120-(2 x+5) \leqslant 11+8 x$ | First, simplify the inequality: \(120 - (2x + 5) \leqslant 11 + 8x\) |
| None | If you have the following data about a bag of cho… | Find the mass of the chocolate chips only: \(2041 - 67 = 1974\) grams |
| None | 18. A candle $3.0 \mathrm{~cm}$ high is placed $3… | Given the object height \(h_o = 3 \mathrm{~cm}\), object distance \(d_o = 30 \mathrm{~cm}\), and fo… |
| None | Using this two-way table, work out the percentage… | Find the total number of square counters: \(13 + 7 = 20\) |
| None | Exchange rates Faisal lives in the USA. He wants … | Convert the cost of the sheet in Egypt from Egyptian pounds to euros: \(210 \text{ Egyptian pounds}… |
| None | Depreciation Chao bought a boat for $\mathrm{HK} … | Calculate the final value of the boat using the formula: \(Final Value = Initial Value * (1 - Depre… |
| None | 3) $9-\frac{4}{3} \div\left(\frac{1}{2}\right)^{-… | First, we need to solve the expression inside the parentheses, which is \(\left(\frac{1}{2}\right)^… |
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