The divisibility rule for 9 is quite straightforward and handy for quickly checking whether a number is divisible by 9 without having to perform full division. According to this rule, a number is divisible by 9 if the sum of its digits is also divisible by 9. Here’s how you can apply this rule: Add … Read more
To factor the expression 1 – csc²(x) in terms of a single trigonometric function, we first need to remember the relationship between the cosecant function and the sine function. The cosecant function is defined as: csc(x) = 1/sin(x) Therefore, we can write: csc²(x) = 1/sin²(x) Substituting this into our expression gives: 1 – csc²(x) = … Read more
To solve the equation 2x + 6 = 4 + 20, we’ll follow a step-by-step approach. First, simplify the right side of the equation: Calculate 4 + 20 to get 24. Now, rewrite the equation: We have 2x + 6 = 24. Next, isolate the term with x: Subtract 6 from both sides to eliminate … Read more
The expression 10, 5, 3, 20 isn’t immediately clear in terms of mathematical operations. The absence of operators (like +, -, *, /) between the numbers means we need to interpret what you might mean by the expression. However, if we assume you might be asking for: The sum: Adding the numbers together would give … Read more
To find the probability of two independent events happening together, we multiply their individual probabilities. In this scenario, we have: Tossing a Coin: A standard coin has two sides: heads (H) and tails (T). The probability of tossing tails (T) is: P(Tails) = 1/2 Rolling a Number Cube: A typical number cube (or die) has … Read more
To analyze the relationship between the two angles MABD and MADC, we need to understand the configuration of these angles in the given figure. First, let’s establish what we know: The angle MABD is given as 120 degrees. The angles are likely part of a geometric figure that involves intersecting lines or angles around a … Read more
To solve the differential equation xy” + 4y’ = x^4 using the method of variation of parameters, we first need to rewrite the equation in a standard form. The equation can be rearranged as: y” + rac{4}{x}y’ = x^3 Next, we identify the homogeneous part of the equation: y” + rac{4}{x}y’ = 0 We can … Read more
To find the mode of a set of numbers, you want to identify the number that appears most frequently. In our case, we have the following numbers: 19, 1, 17, 19, 3, 20, 5, and 2. Let’s analyze the frequency of each number: 19 appears twice 1 appears once 17 appears once 3 appears once … Read more
The equation of a parabola in the form y² = 4px describes a parabola that opens to the right. Here, p represents the distance from the vertex to the focus of the parabola, which is a crucial parameter in defining its shape and position. In the specific case of the equation y² = 4x, we … Read more
Finding Solutions Using the Zero Product Property To solve the equation x² – 30x + 12 = 0 using the zero product property, we first need to break it down into a suitable format. The zero product property states that if the product of two factors equals zero, then at least one of those factors … Read more