Which of the following algebraic equations could represent the sentence, "the product of a number and five is 11"?

x + 5 = 11
x - 5 = 11
= 11
5x = 11

last option.

Step-by-step explanation:

You need to remember that a product is the result obtained by multplying the factors.

For example, in the following multiplication, the number 110 is the product and this is obtained by multiplying the factors 10 and 11:

Then,  being 11 the product, then you can know that:

"x" is a factor and 5 is the other factor.

Therefore, the algebraic equation that could represent the sentence "The product of a number and five is 11", is:

The answer is below

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. Types of triangles are acute, obtuse, isosceles, equilateral, scalene and right angled triangle.

A right angled triangle is a triangle in which one of the angles is 90°. In a right angled triangle, the longest side is known as the hypotenuse and the side is opposite to the right angle.

Pythagoras theorem states that the square of the hypotenuse is equal to the sum of the square of the other two sides.

Given the question attached, using Pythagoras theorem:

18² = x² + 12²

324 = x² + 144

x² = 180

x = 13.42