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Algebra

The use of letters to substitute unknown numbers to form an equation. Solve the equation to get the unknown number using different methods such as simultaneous equations and more.

227,579 Questions

Who introduced the order of operations?

The order of operations, a set of rules for determining the sequence in which mathematical operations should be performed, was formalized by mathematicians over time rather than being introduced by a single individual. The acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) is often used to help remember the order. Although the exact origins are not attributed to a specific person, the conventions became standardized in the 19th century as mathematics evolved.

Is the slope of a line the coefficient of the y-term in the line's equation?

No, the slope of a line is not the coefficient of the y-term in the line's equation. In the slope-intercept form of a line's equation, (y = mx + b), the slope is represented by the coefficient (m) of the x-term, while (b) represents the y-intercept. Therefore, the slope corresponds to the x-term's coefficient, not the y-term.

What is the square root of 112 to the nearest whole number?

The square root of 112 is approximately 10.583. To the nearest whole number, this value rounds to 11.

When to use problem solving in teaching?

Problem-solving should be used in teaching when educators aim to enhance critical thinking and analytical skills among students. It is particularly effective in subjects that require applying concepts to real-world situations, fostering deeper understanding and retention. Additionally, employing problem-solving strategies can engage students actively, encouraging collaboration and communication as they work through challenges together. Overall, integrating problem-solving into lessons supports a more interactive and meaningful learning experience.

Is the vertex the highest point of the parabola?

The vertex of a parabola is the highest point if the parabola opens downward, making it a maximum point. Conversely, if the parabola opens upward, the vertex is the lowest point, known as a minimum. Thus, whether the vertex is the highest or lowest point depends on the direction in which the parabola opens.

What is 210 squared plus 150 squared?

To find (210^2 + 150^2), first calculate each square: (210^2 = 44100) and (150^2 = 22500). Adding these together gives (44100 + 22500 = 66600). Therefore, (210^2 + 150^2 = 66600).

What squared equals 2304?

To find the number that squared equals 2304, you need to take the square root of 2304. The square root of 2304 is 48, since 48 multiplied by itself (48 × 48) equals 2304. Therefore, 48 squared equals 2304.

What is Amontons equation?

Amontons' equation describes the relationship between pressure and temperature in gases, formulated by French physicist Guillaume Amontons in the 17th century. It states that for a given mass of gas at constant volume, the pressure is directly proportional to its absolute temperature. Mathematically, it can be expressed as ( P \propto T ), where ( P ) is the pressure and ( T ) is the absolute temperature. This principle is foundational in thermodynamics and helps explain gas behavior under various conditions.

When did linear equations were use for the first time?

Linear equations can be traced back to ancient civilizations, with some of the earliest known uses found in Babylonian mathematics around 2000 BCE. The Babylonians developed methods to solve linear equations, often in the context of problems related to trade and land measurement. Additionally, ancient Greek mathematicians like Euclid further explored these concepts. However, the formalization of linear equations as we understand them today evolved over centuries, particularly during the Renaissance and the development of algebra.

What is -4-3y?

The expression -4 - 3y represents a linear expression in terms of the variable y. It indicates that you start with -4 and then subtract 3 times the value of y. Without a specific value for y, this expression cannot be simplified further.

What does chinedum e mean?

"Chinedum" is an Igbo name from Nigeria that translates to "God leads me" or "God guides me." The name reflects a sense of faith and reliance on divine guidance in one's life. The "E" at the end could refer to an abbreviation or a personal identifier, but without additional context, its specific meaning is unclear.

What algebraic expression is a product with a factor of 5?

An algebraic expression that is a product with a factor of 5 can be represented as ( 5x ), where ( x ) is any variable or expression. This indicates that 5 is multiplied by ( x ). Other examples could include ( 5(y + 2) ) or ( 5a^2b ), where the factor of 5 is present in the product.

What is 6XY if X equals six and Y equals three?

If X equals six and Y equals three, then 6XY can be calculated by substituting the values of X and Y into the expression. This gives us 6 * 6 * 3. Therefore, 6XY equals 108.

How do you solve powerplant problem?

To solve a power plant problem, first, clearly define the issue, whether it's related to efficiency, emissions, or operational costs. Gather relevant data and analyze key performance indicators to identify root causes. Implement targeted solutions, such as upgrading technology, optimizing processes, or enhancing maintenance practices. Finally, monitor the results and adjust strategies as necessary to ensure continuous improvement.

What is the answer for y-3x-10?

To find the answer for the expression ( y - 3x - 10 ), you need specific values for ( y ) and ( x ). If you substitute those values into the expression, you can simplify it to find the result. Without specific values for ( y ) and ( x ), the expression remains unsimplified.

Which expression is equivalent to 19 x 8?

The expression equivalent to (19 \times 8) can be rewritten using the distributive property. For example, it can be expressed as ((20 - 1) \times 8), which simplifies to (20 \times 8 - 1 \times 8), resulting in (160 - 8 = 152). Thus, (19 \times 8) is equivalent to (152).

What is A written statement indicating the equality of two expressions?

A written statement indicating the equality of two expressions is called an equation. It consists of two expressions separated by an equals sign (=), showing that the values of both sides are the same. For example, in the equation (2x + 3 = 7), the expression on the left is equal to the expression on the right when (x) is solved. Equations are fundamental in mathematics and are used to express relationships between variables.

Why does 3n squared plus 9n plus 6 have more than one factor?

The expression (3n^2 + 9n + 6) can be factored into simpler polynomial expressions, indicating that it has more than one factor. A polynomial of degree 2, like this one, generally has two factors when expressed in its factored form. Additionally, since it can be factored using methods such as grouping or the quadratic formula, it reveals multiple combinations of factors. Thus, it showcases the polynomial's ability to be expressed in various multiplicative forms.

What is the independent variable of a flower?

The independent variable of a flower typically refers to a factor that is manipulated or changed in an experiment to observe its effects on another variable. For example, if you are studying how different amounts of sunlight affect flower growth, the amount of sunlight would be the independent variable. Other examples might include water levels, soil type, or fertilizer type, depending on the focus of the experiment.

What is the function of cephalin?

Cephalin, also known as phosphatidylethanolamine, is a phospholipid that plays a crucial role in cellular membranes, contributing to their structural integrity and fluidity. It is involved in various biological processes, including cell signaling, membrane fusion, and the formation of lipid bilayers. Cephalin is also important for proper functioning of the nervous system and is found in high concentrations in brain tissue. Additionally, it serves as a precursor for the synthesis of other important molecules, such as phosphatidylcholine and certain signaling lipids.

What is x in the equation -4x 12-20?

It seems there may be a typo in the equation you provided. If you meant to write (-4x = 12 - 20), you can simplify the right side to get (-4x = -8). Dividing both sides by -4 gives (x = 2). If the equation is different, please clarify for an accurate solution.

Is the slope of (51)(11-23) -4?

To determine if the expression ( (51)(11-23) - 4 ) has a slope of -4, we first simplify it. The expression evaluates to ( (51)(-12) - 4 = -612 - 4 = -616 ). Since this is a constant value rather than a linear equation with a variable, it does not have a slope. Thus, the slope is not -4.

What is your independent variable for a solar powered heater?

The independent variable for a solar-powered heater would typically be the amount of solar energy received, which can be manipulated by changing factors such as the angle of the solar panels, the type of solar collector used, or the duration of sunlight exposure. By adjusting these conditions, you can observe their effects on the heater's performance, such as temperature increase or heating efficiency.

How high must an access ladder extend above a working platform?

An access ladder must extend at least 3 feet (approximately 1 meter) above the working platform to provide a stable handhold and ensure safe access and egress. This height helps prevent falls and allows workers to maintain their grip while transitioning between the ladder and the platform. Additionally, local regulations or industry standards may have specific requirements, so it's essential to consult those guidelines as well.

What is the function of achieve?

The function of "achieve" is to successfully reach or attain a desired goal, objective, or outcome through effort, skill, or determination. It often implies overcoming challenges or obstacles to fulfill aspirations, whether in personal, academic, or professional contexts. In essence, achieving signifies the realization of ambitions and the completion of tasks that require perseverance.