The equation can be obtained according to the meaning of the question.

X+y=35, 2x+4y=94, so x=23, y= 12.

23 chickens and 2 rabbits/kloc-0. Please refer to them.

Pythagorean theorem means that the sum of squares of two right-angled side lengths (hook length, head) of a right-angled triangle is equal to the square of hypotenuse length (chord length), which is one of the most proven theorems in mathematical theorems.

In a right-angled triangle on the plane, the square of the length of two right-angled sides adds up to the square of the length of the hypotenuse. If the lengths of two right-angled sides of a right-angled triangle are A and B, respectively, and the length of the hypotenuse is C, then it can be expressed in mathematical language as: A? +b？ =c？ .

The third side is solved by knowing the two sides of a right triangle, or the lengths of the three sides of the triangle are known, which proves that the triangle is a right triangle or proves that the two sides of the triangle are vertical.

Draw a straight line from point A to the opposite side so that it is perpendicular to the opposite side. Extend this line to split the opposite square in two, and transform the upper two squares into the lower two rectangles with the same area through a triangle with the same height and the same bottom.

Definite integral is a kind of integral, which is the limit of the integral sum of function f(x) in the interval [a, b]. Here we should pay attention to the relationship between definite integral and indefinite integral: if definite integral exists, it is a concrete numerical value, while indefinite integral is a function expression, and they have only one calculation relationship in mathematics.

Where: a is called the lower integral limit, b is called the upper integral limit, the interval [a, b] is called the integral interval, the function f(x) is called the integrand variable, f(x)dx is called the integrand expression, and ∫ is called the integral symbol.