Problem 7
Question
Evaluate each expression or indicate that the root is not a real number. $$\sqrt{25-16}$$
Step-by-Step Solution
Verified Answer
The answer to \(\sqrt{25-16}\) is 3.
1Step 1: Perform Subtraction
First, subtract 16 from 25 to get \(25-16=9\).
2Step 2: Calculate Square Root
Next, find the square root of the result from step 1. So, \(\sqrt{9}=3\).
Other exercises in this chapter
Problem 6
Evaluate each exponential expression in Exercises 1–22. $$ -2^{4} $$
View solution Problem 7
Simplify each rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression. $$\frac{3 x-9}{x^{2}-6 x+9}$$
View solution Problem 7
Factor out the greatest common factor. $$ x(x+5)+3(x+5) $$
View solution Problem 7
Find the degree of the polynomial. $$x^{2}-4 x^{3}+9 x-12 x^{4}+63$$
View solution