what is the square of 25 So sqrt 16 25 sqrt 4 5 2 4 5 4 5 is also a square root of 16 25 but by convention when we say the square root we tend to mean the positive one Answer link
Terms Help 36 Notice that these are all square numbers 4 2xx2 9 3xx3 16 4xx4 25 5xx5 So we would expect the next number in the sequence to be 36 6xx6 Another way of writing axxa is a 2 In general a n overbrace axxaxx xxa n times You will find that it is very useful to know a few square numbers Guess what the square root of the irrational number is For example if your irrational number is 2 you might guess 1 2 Divide the initial irrational number by the guessed number For example 2 divided by 1 2 is 1 67 Add the resulting sum to the original guessed number For example 1 67 plus 1 2 is 2 87
what is the square of 25
what is the square of 25
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Just simplify the radicals sqrt25 5 sqrt81 9 sqrt25 sqrt81 5 9 This is irrational if n is a prime number or has no perfect square factors When we simplify radicals we try to factor out perfect squares For example if we had 54 We know that 9 is a perfect square so we can rewrite this as 9 6 3 6 We know that 6 is the same as 3 2 but neither of those numbers are perfect
Explanation note that 16 and 25 are both perfect squares 16 25 16 25 note plus or minus 16 25 4 5 Answer link A square root of a number n is a number r such that r2 n In the case of 25 we find that 52 25 so 5 is a square root of 25 Note that 5 is also a square root of 25 in that 5 2 5 5 25 The square root usually refers to the positive square root sometimes known as the principal square root In symbols we write
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One more thing remains choose the right signs That is where Equation 2 comes in x and y have the same sign if b is positive x and y have opposite sign if b is negative Now put this all together for the square root of 25i a 0 b 25 b is negative so choose opposite signs for x and y a2 b2 25 How do you find the domain and range of sqrt 25 x 2 Algebra Expressions Equations and Functions Domain and Range of a Function 1 Answer
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what is the square of 25 - Explanation note that 16 and 25 are both perfect squares 16 25 16 25 note plus or minus 16 25 4 5 Answer link