🧮 algebra

1. Let's clarify the problem: You mentioned the answer should be 138, but you didn't specify the original question or expression. 2. To help, please provide the original problem or

1. The problem is to solve the equation or understand the content on page 70 of the 1st year Math book Sindh Board as referenced. 2. Since the exact problem is not specified, I wil

1. **State the problem:** We have a parabolic arch bridge 50 ft high at the center and 200 ft wide at the base. We want to find the height of the arch 30 ft from the center to see

1. Тодорхойлж байна: ³√8² болон ³√8⁻² хоёр тоо тэнцүү эсэхийг шалгах. 2. Формул болон дүрэм:

1. The problem asks to identify which expressions are cube roots (куб язгуур). 2. A cube root of a number $a$ is a number $b$ such that $b^3 = a$. It is denoted as $\sqrt[3]{a}$.

1. Find the intercepts for the equation $2x + y = 8$. - To find the x-intercept, set $y = 0$:

1. **State the problem:** A trader wants to convert 10,000 RMB to FCFA using the function $y = \frac{x}{85}$, where $y$ is RMB and $x$ is FCFA. 2. **Formula used:** The function re

1. **Simplify the expression:** $$\frac{1}{x} - \frac{3}{x^2} \cdot 1 - \frac{9}{x^2} \div \left(\frac{1}{x} + \frac{2}{x^2} \cdot 1 - \frac{4}{x^2}\right)$$

1. Let's start by understanding what algebra is. Algebra is a branch of mathematics that uses symbols, usually letters, to represent numbers and express mathematical relationships.

1. Algebra is a branch of mathematics that deals with symbols and the rules for manipulating those symbols. 2. It involves solving equations and understanding how variables relate

1. **Problem Statement:** Verify the expression $$\frac{z_1 + z_2}{z_1 - z_2}$$ where $$z_1 = 3 + 4i$$ and $$z_2 = -3 - 4i$$. 2. **Recall:** Complex numbers are of the form $$a + b

1. **Problem Statement:** We have a motorist's journey graph showing distance traveled over time from 7:30 am to 11:00 am.

1. **Problem statement:** Calculate the sum \( S = C_n^1 + 2C_n^2 + 3C_n^3 + \cdots + nC_n^n \). 2. **Formula and rules:** Recall the binomial theorem:

1. **Problem:** Find the x-intercept and y-intercept of the equation $2x + y = 8$. 2. **Formula and rules:**

1. **State the problem:** Solve the linear equation $2x + y = 8$ for $y$ in terms of $x$. 2. **Formula and rules:** To solve for $y$, isolate $y$ on one side of the equation by sub

1. **State the problem:** The ratio of the price of a dress to that of a shirt is 7:4. The dress costs 42 more than the shirt. We need to find the price of the dress. 2. **Set vari

1. **State the problem:** We have a motorist's journey represented on a distance-time graph from 07:30 to 11:00 am covering 70 km. The motorist stopped for breakfast between points

1. نبدأ بكتابة المسألة: $$R = \frac{3 + 2 \times 5(7 - \frac{6}{3} - 2 - 7)}{+ 3(-5 \times 1 - 10)}$$

1. Problem: Given functions $f(x) = 3x + 2$ and $g(x) = 2 - x$, find the composite function $(f \circ g)(x)$. 2. Formula: The composite function $(f \circ g)(x)$ means $f(g(x))$, w

1. Bài toán yêu cầu giải phương trình $x \cdot y - 5 \cdot y + 5 \cdot x - 24 = 12$. 2. Ta bắt đầu bằng cách viết lại phương trình:

1. The problem states that the variable $r$ is unknown, and we need to find its value. 2. To solve for $r$, we need an equation or context involving $r$. Since none is provided, le