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The sum of the square of a positive number and the square of 5 more than the number is 233 What is the number?
Wiki User
∙ 14y ago
x2 + (x+5)2 = 233
2x2 + 10x + 25 = 233
2x2 + 10x - 208 = 0
2x2 + 26x - 16x - 208 = 0
2x(x+13) - 16(x+13) = 0
(2x-16)(x+13) = 0
So 2x-16 = 0 or x+13=0
So the soln is 2x-16=0 ie x = 8
Wiki User
∙ 14y ago
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The square of 9 more than a number is equal to 9 more than the square of the number. What is the number?
-4
Is the square of a number always sometimes or never greater than or equal to the number?
Usually the square of a number is greater than the original number (2x2=4, -2x-2=4) wherther the number is negative or positive. The square of 1 is the same (1x1=1) but the square of -1 is greater (-1x-1=1) The square of positive decimal numbers is smaller than the original number (0.1x0.1=0.01) and the square of negative decimal numbers is larger than the original number (-0.1x-0.1=0.01)
If a negative number squared is positive why isn't the square root of a positive number negative?
Don't forget that a positive number squared is also positive.The rule has nothing to do with whether they're positive or negative. The rule is:When you multiply two numbers together, if their signs are the same then the product is positive.If their signs are different, then the product is negative.When you square a number, the two numbers you're multiplying are the same number,so their signs are always the same, and the product (the square) is always positive.Going the other way, you start with a positive number that's the product. Since it's positive,you know that the two numbers that were multiplied to get it have the same sign ... theycould both be positive, or they could both be negative.The answer to your question is more weird than you expected: The square root of a positive numberis negative. It's also positive. A positive number has two square roots ... the positive one andnegative one.Now, the square root of a negative number is something more difficult. No number squared can equal a negative except for what is called imaginary numbers, defined by "i". For example, the square root of -1 is i, and the square root of -2 is (√2)*i.
Why is 155 a composite number?
A composite number is a number with more than two positive integer factors (itself and one). Other than these two numbers, the positive integer factors of 155 are 5 and 31.
If 3 more than n is a negative number and if 5 more than n is a positive number what could be the value of n?
-4
The sum of the square of a positive number and a square of five more than the number is 73 what is the number?
73
What is a prime number that is one more than a square number?
#2. since 1 is a square number. and a prime number is positive with only two positive natural number divisors: 1 and itself.
The square of 9 more than a number is equal to 9 more than the square of the number?
The square of 9 more than a number is equal to nine more than the square of a number. What is the number?
The square of 9 more than a number is equal to 9 more than the square of the number. What is the number?
-4
The square of 9 more than a number is equal to 9 more than the square of the number What is the number?
-4
Is a positive number more or less than a negative number?
more!
Is the square of a number always sometimes or never greater than or equal to the number?
Usually the square of a number is greater than the original number (2x2=4, -2x-2=4) wherther the number is negative or positive. The square of 1 is the same (1x1=1) but the square of -1 is greater (-1x-1=1) The square of positive decimal numbers is smaller than the original number (0.1x0.1=0.01) and the square of negative decimal numbers is larger than the original number (-0.1x-0.1=0.01)
Is the square root of a number always bigger than its square root?
No, not always since: if a number is more than 1, then its square root is smaller than the number. if a number is less than 1, then its square root is bigger than the number.
When is the Square root of x greater than x?
when x is a negative number --- is a wrong answer since square root of a negative number is not defined. So x has to be zero or a positive number. The correct answer is that when x lies between 0 and 1 (with both limits excluded), its square root is greater than the number itself. Of course at both limits, the square root (assuming the positive square root - since a square root of a number can be positive or negative, both with the same absolute value) is the same as the number.
If a negative number squared is positive why isn't the square root of a positive number negative?
Don't forget that a positive number squared is also positive.The rule has nothing to do with whether they're positive or negative. The rule is:When you multiply two numbers together, if their signs are the same then the product is positive.If their signs are different, then the product is negative.When you square a number, the two numbers you're multiplying are the same number,so their signs are always the same, and the product (the square) is always positive.Going the other way, you start with a positive number that's the product. Since it's positive,you know that the two numbers that were multiplied to get it have the same sign ... theycould both be positive, or they could both be negative.The answer to your question is more weird than you expected: The square root of a positive numberis negative. It's also positive. A positive number has two square roots ... the positive one andnegative one.Now, the square root of a negative number is something more difficult. No number squared can equal a negative except for what is called imaginary numbers, defined by "i". For example, the square root of -1 is i, and the square root of -2 is (√2)*i.
What happens when you multiply a positive number by a positive more than one?
nothing it will always be positive.
Twice the square of a certain positive number is 144 more than twice the number What is the number?
(92 x 2) - (9 x 2) = 162 - 18 = 144 The number is therefore 9.
