New exercises from Khan Academy 2021-07-25T16:04:56.000000
Atualizado: 20 horas 41 minutos atrás
Multiply 2- or 3-digit numbers by 1-digit numbers. No regrouping or carrying.
Generate terms in a pattern when given a rule. Identify features of a pattern that are not explicit to the rule itself.
Practice solving equations in one step by adding or subtracting the same value from both sides.
Let's practice some problems to better understand and apply Einstein's photoelectric equation.
Use combinations to count how many ways you can select k objects from n total objects if order doesn't matter.
Let's practice some problems to better understand the variation of photocurrent and the physics behind it when we have a negative collector in photoelectric effect.
Use area models to represent the distributive property in finding area of rectangles.
Given some features of a hyperbola, find its equation.
Identify squares, rectangles, and rhombuses.
Practice what you have learned about the impact of trade, tariffs, and quotas on consumer and producer surplus in this exercise.
Given a scalar field in 2D or 3D, select the choice with all its critical points.
Test your knowledge of various biotechnologies!
Rewrite powers of powers. For example, (x²)⁵ can be written as x¹⁰.
Evaluate numerical radical expressions using the properties of exponents.
Rewrite some elaborate exponential expressions that involve fractional exponents and radicals.
Rewrite exponential expressions (where the exponent can be a fraction) using the properties of exponents.
Choose equivalent forms of radical and exponential expressions.
Evaluate numerical expressions with rational exponents, and convert between equivalent forms of exponential and radical expressions.