5gz = 5 x 3 x 4 = 60
-2-3=+7
The expression "y - 3x + 4" is not a question, but rather a mathematical expression. It represents a combination of variables (y and x) and constants (3 and 4) connected by addition and subtraction operations. The final value of this expression will depend on the specific values assigned to the variables y and x. To simplify or evaluate this expression further, specific values for y and x would need to be provided.
21+1654+4
(21-3)times(7+4)
4xy = 4(3)(-7) = - 84
5gz = 5 x 3 x 4 = 60
To evaluate the expression (5gz) when (g = 3) and (z = -4), substitute the values into the expression: [ 5 \cdot 3 \cdot (-4) = 5 \cdot 3 = 15 \quad \text{and then} \quad 15 \cdot (-4) = -60. ] Thus, (5gz = -60).
Unfortunately there is no expression to evaluate!
[10-(4*2)]*3
-2-3=+7
To evaluate an expression, you substitute the variable with a specified number. This process involves replacing the variable in the expression with its given value and then performing the necessary arithmetic operations to simplify the expression. For example, if you have the expression (2x + 3) and you substitute (x) with (4), you would calculate (2(4) + 3) to get (11).
Okay, here is a postfix expression: 3 4 * 5 6 * + the evaluation: 3*4 + 5*6 12 + 30 42
2*3*4 = 24
To evaluate the expression for 4, you first need to identify the specific expression you want to evaluate. For example, if the expression is (f(x) = x^2 + 2x + 1), you would substitute 4 for (x): (f(4) = 4^2 + 2(4) + 1). Then, perform the calculations step by step to find the result. If you have a different expression in mind, please specify it for a tailored evaluation.
To evaluate expressions by substitution, first identify the variable(s) in the expression and determine their corresponding values. Replace each variable in the expression with its given value. Finally, perform the necessary arithmetic operations to simplify the expression and obtain the final result. For example, if the expression is (2x + 3) and (x = 4), substitute to get (2(4) + 3), which simplifies to (8 + 3 = 11).
2(1,0) - 3(2,-1) = (-4,3)
To evaluate the expression (-2x^2 + 4x - 3) when (x = 3), substitute (3) for (x): [ -2(3)^2 + 4(3) - 3 = -2(9) + 12 - 3 = -18 + 12 - 3 = -9. ] Thus, the value of the expression is (-9).