Question

Помогите! Алгебра, 8 класс

Answer 1

Sqrt(sqrt(0,64)+sqrt(10^-4))= sqrt(0,8+10^-2)=sqrt(0,81)=0,9

Answer 2

Algebra in 8th Grade

Algebra is an important subject taught in 8th grade. It involves the study of mathematical symbols and the rules for manipulating these symbols to solve equations and understand relationships between variables. In 8th grade algebra, students typically learn about various topics, including:

1. Linear Equations: Students learn to solve linear equations, which involve variables raised to the power of 1. They learn techniques such as isolating the variable, using inverse operations, and solving equations with fractions or decimals.

2. Quadratic Equations: Students are introduced to quadratic equations, which involve variables raised to the power of 2. They learn to solve quadratic equations using methods such as factoring, completing the square, and using the quadratic formula.

3. Graphing: Students learn to graph linear equations and quadratic equations on the coordinate plane. They learn about slope, intercepts, and the relationship between equations and their graphs.

4. Systems of Equations: Students learn to solve systems of equations, which involve multiple equations with multiple variables. They learn to solve systems of equations using methods such as substitution, elimination, and graphing.

5. Inequalities: Students learn about inequalities and how to solve and graph them. They learn about the properties of inequalities, such as adding or subtracting the same value to both sides and multiplying or dividing by positive or negative numbers.

6. Exponents and Radicals: Students learn about exponents and radicals, including simplifying expressions with exponents, multiplying and dividing expressions with exponents, and simplifying square roots and cube roots.

7. Polynomials: Students learn about polynomials, including adding, subtracting, multiplying, and dividing polynomials. They also learn about factoring polynomials and solving equations involving polynomials.

8. Rational Expressions: Students learn about rational expressions, which involve fractions with variables. They learn to simplify, multiply, divide, add, and subtract rational expressions.

These are just some of the topics covered in 8th grade algebra. The specific curriculum may vary depending on the school or educational system. It's important to consult your textbook or curriculum guidelines for a more detailed understanding of the topics covered in your specific course.

I hope this information helps! Let me know if you have any further questions.