🧮 algebra

1. The problem is to evaluate the expression $\frac{5}{4} : 0.8$. 2. Division of a fraction by a number can be rewritten as multiplication by the reciprocal: $\frac{5}{4} : 0.8 = \

1. **Problem 1:** Find the ratio of red cars to blue cars given the ratios red:green = 5:6 and green:blue = 3:10. Step 1: Write the given ratios:

1. The problem is to use the Binomial Theorem to prove the expansion of $ (a+b)^n $. 2. The Binomial Theorem states that for any integer $ n \geq 0 $:

1. **Problem:** Calculate the value of the expression $12 - (-3) \times 4 \times (-20) - 6 \times 6 + (-6)$. 2. **Formula and rules:** Follow the order of operations (PEMDAS/BODMAS

1. **Problem Statement:** Write the equation of the parabola in conic form that opens to the right, has a focus of (2, -3), and a focal chord length of 32. 2. **Recall the formula

1. The problem is to factor completely the expression $$48x^{2n} - 75x^{4n}$$. 2. First, identify the greatest common factor (GCF) of the terms. Both terms have a factor of $$3x^{2

1. **Stating the problem:** Solve the logarithmic equation $$\log_5 5 - 20c + \log_3 2 = \log_5 20$$

1. **הבעיה:** נתונה סדרה הנדסית $A$ עם איברים שליליים $a_1, a_2, \ldots, a_m$ כאשר $m$ הוא מספר טבעי גדול מ-4. נתון שסכום $m$ האיברים הראשונים הוא פי 16 מסכום $m-4$ האיברים האחרוני

1. Let's clarify why we use absolute value in the 6th step of a problem involving square roots or logarithms. 2. Absolute value is used to ensure the result is non-negative because

1. Calculate the following expressions involving square roots. 2. Use the property \(\frac{\sqrt{a}}{\sqrt{b}} = \sqrt{\frac{a}{b}}\) to simplify each fraction.

1. **Problem statement:** Find the value of $k$ such that the area of the triangle with vertices $(2, -6)$, $(5, 4)$, and $(k, 4)$ is 35 square units. 2. **Formula for area of tria

1. **State the problem:** We are given a triangle with vertices at points $(2, -6)$, $(5, 4)$, and $(k, 4)$, and the area of this triangle is 35 square units. We need to find the v

1. Masalah ini meminta kita untuk menghitung solusi setelah substitusi dilakukan. 2. Langkah pertama adalah menuliskan persamaan yang sudah disubstitusikan.

1. The problem is to solve the equation or expression given by the user. However, no specific equation or expression was provided. 2. To solve an equation, we typically isolate the

1. **State the problem:** Express 0.000407 correct to two significant figures. 2. **Understand significant figures:** Significant figures are digits that carry meaning contributing

1. **State the problem:** Express 0.0000407 correct to two significant figures. 2. **Understand significant figures:** Significant figures are the digits in a number that carry mea

1. **Ratio**: A ratio compares two quantities showing how many times one value contains or is contained within the other. It is written as $a:b$ or $\frac{a}{b}$. For example, if t

1. **Problem:** Find the limit of $$\frac{6x^2 - 17x + 12}{2x^2 - x - 3}$$ as $$x \to 4$$. 2. **Formula:** For polynomial limits at a point, substitute the value directly if the de

1. The problem asks to find the value of the expression $abcd$. 2. To solve this, we need the values of $a$, $b$, $c$, and $d$.

1a. Rationalize the following expressions: 1. $$\frac{2}{3-\sqrt{2}} + \frac{1}{3+\sqrt{2}}$$

1. Problem: Given $f(x)=-7x^2-5$ and $g(x)=2x-1$, solve $f(g(x))=-68$. 1. Formula and rule: $f(g(x))$ means substitute $g(x)$ into $f$, so compute $f(g(x))$.