explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?
When x = 2, 3x + 5 = 11.
5gz = 5 x 3 x 4 = 60
Interpreting the question as "evaluate f(x) = -x2 + 5 for x = 4". This is the same as asking "what is f(4)". To evaluate f(4) just replace each instance of the x in the definition of f(x) by the number 4: f(4) = -42 + 5. The result is -11.
5(5) is 25. 3(-2) is (-6). The expression becomes 25 - (-6). When subtracting a negative number, you actually "add the opposite," so the expression is now 25 + 6 (positive 6 is "the opposite" of -6); the value is 31.
The answer is x = 5. There is nothing to evaluate there!
explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?
13
(3 * 3)(2 * 5) (9)(10) 90
(7 x 7) - (5 x 3)
Find the value of the expression.
(3x - 5)(2x + 7)
to evaluate 5 squared you must simply do 5x5. Which equals 25.
Evaluate 9p + 33 for p = 5
Evaluating the expression is usually used in math, and it means solve the question.
Evaluate -4(a+b) - 10a/b when a=8 and b=5
To evaluate the algebraic expression 7 + 5x for x = 10, you substitute the value of x into the expression. So, you get 7 + 5(10), which simplifies to 7 + 50. Therefore, the final answer is 57.