Answer:
0
Step-by-step explanation:
plug in the numbers!
[2(4)-12]+[1/2(4)(7)-10]
(8-12)+(2(7)-10)
-4+14-10
0
The value of the expression is zero for x = 4 and y = 7.
Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.
Operators which let do a basic mathematical calculations.
+ Addition operation: Adds values on either side of the operator.
For example 12 + 2 = 14
- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.
for example 12 -2 = 10
* Multiplication operation: Multiplies values on either side of the operator
For example 12*2 = 24
Given that x = 4 and y =7
The expression as :
(2x - 12) + (1/2xy - 10)
To determine the value of the expression
⇒ (2x - 12) + (1/2xy - 10)
Substitute the values of x = 4 and y =7 in the expression
⇒ [2(4) - 12] + [1/2(4)(7) - 10]
we have to open the brackets above
⇒ (8 - 12) + 2(7) - 10
Apply the arithmetic operations
⇒ -4 + 14 - 10
⇒ 0
Hence, the value of the expression is zero for x = 4 and y = 7.
Learn more about Arithmetic operations here:
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