# math

posted by wan

as well as addition,subtraction,division and multiplication.Sally invents the operation Q. when you see Q between two numbers,you double the sum of their squares. The value of 5Q12 would be ?

1. Steve

2(5^2+12^2) = 2*169 = 338

## Similar Questions

1. ### math

115-100+3*5= 115-100+3*5...Use BEDMAS (Bracket, Exponent, Division/Multiplication, Addition/Subtraction). So you would first do 3*5 which is 15. So you'd have: 115-100+15 And then from there solve to get 30. It's PEMDAS Raj!! P - PARENTHESSE …
2. ### Math

using the numbers 24-12-7-2...in any addition subtraction division or multiplication combination, i have to come up with the sum of 24. Help.
3. ### Very easy math

my teacher told me that the inverse of addition was subtraction and that the inverse of subtraction was addition... could you prove it to me -x = (-1)x ((-1)x)^-1 I don't see how I'm suppose to get + x by taking the inverse of -x i've …
4. ### 6TH GR. ALGEBRA

EXTENDING THE LESSON If you add any two rational numbers, the sum is always a rational number. So, the set of rational numbers is closed under addition. Is the set of rational numbers closed under subtraction. multiplication,and division …
5. ### math

How can you make 34 by only using the digits 1, 2, 3, and 4?
6. ### math

How can you make 7 by only using the digits 1, 2, 3, and 4?
7. ### math

What inverse operation is needed for the first step in solving the equation 12+5x=22?
8. ### Algebra

To solve the following system of equations by elimination, which operation would you perform first?
9. ### Math

Using two examples for each operation (addition, subtraction, multiplication and division), use two fractions which will equal 2/5.
10. ### Algebra I

Tell whether the set is closed under the operation. If it is not closed give an example that shows that the set is not closed under the operation. 10. Positive irrational numbers; division 11. Negative rational numbers; multiplication …

More Similar Questions