`5x^{2}+2y` when `x\ =\ -3` and `y\ =0.25`.
To find the value of the expression 5x^2 + 2y when x = -3 and y = 0.25, we substitute these values into the expression:
5(-3)^2 + 2(0.25)
Simplifying the expression inside the parentheses:
5(9) + 2(0.25)
Multiplying:
45 + 0.5
Adding:
45.5
Therefore, 5x^2 + 2y when x = -3 and y = 0.25 is equal to 45.5.
To find the value of the expression 5x^2 + 2y when x = -3 and y = 0.25, follow these steps:
Step 1: Substitute the given values of x and y into the expression.
5(-3)^2 + 2(0.25)
Step 2: Simplify the expression inside the parentheses.
5(9) + 2(0.25)
Step 3: Multiply and add the values.
45 + 0.5
Step 4: Add the two numbers together.
45.5
Therefore, the value of the expression 5x^2 + 2y when x = -3 and y = 0.25 is 45.5.
To find the value of the expression 5x^2 + 2y when x = -3 and y = 0.25, we can substitute these values into the expression.
Step 1: Replace x with -3 and y with 0.25 in the given expression,
5(-3)^2 + 2(0.25)
Step 2: Evaluate the powers first. Simplify -3^2.
5(9) + 2(0.25)
Step 3: Perform multiplications.
45 + 0.5
Step 4: Add the numbers together.
45.5
Therefore, when x = -3 and y = 0.25, the value of the expression 5x^2 + 2y is 45.5.