O evaluate<span> an algebraic </span>expression<span>, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then </span>evaluate<span> the </span>expression<span>.</span>
Answer:
A secant line contains a chord always
Step-by-step explanation:
A line intersecting in two points is called a secant line, in one point a tangent line and in no points an exterior line. A chord of a circle is the line segment that joins two distinct points of the circle. A chord is therefore contained in a unique secant line and each secant line determines a unique chord.
Answer:
20 hours
Step-by-step explanation:
20x20
If you count the zeros it’s
one billionth