When b = 3, the expression becomes:
2(3)^3 + 5
= 2(27) + 5
= 54 + 5
= 59
Therefore, when b = 3, the value of the expression 2b^3 + 5 is 59.
evaluate the expression 2b^3 + 5 when b = 3
2b^3 + 5 = 2 (?)^3 + 5
5 answers
the school principal is designing a square courtyard outside of the school, separated into 4 equal spaces. she wants to know the total area of the courtyard.
s = length (ft) of one side of each space
which expression shows the total area of the courtyard
4s^2
s^2 + 4
s^4 + 4
s^2
s = length (ft) of one side of each space
which expression shows the total area of the courtyard
4s^2
s^2 + 4
s^4 + 4
s^2
The total area of the courtyard can be found by calculating the area of one square space and then multiplying it by 4 since there are 4 equal spaces in the courtyard.
Area of one space = side length squared = s^2
Area of the 4 spaces = 4 * s^2 = 4s^2
Therefore, the expression that shows the total area of the courtyard is 4s^2.
Area of one space = side length squared = s^2
Area of the 4 spaces = 4 * s^2 = 4s^2
Therefore, the expression that shows the total area of the courtyard is 4s^2.
what is the total area if each smaller space is 5 feet on each side
To find the total area of the courtyard when each smaller space is 5 feet on each side, we use the expression we derived earlier:
Total area = 4s^2
Total area = 4(5)^2
Total area = 4(25)
Total area = 100 square feet
Therefore, the total area of the courtyard when each smaller space is 5 feet on each side is 100 square feet.
Total area = 4s^2
Total area = 4(5)^2
Total area = 4(25)
Total area = 100 square feet
Therefore, the total area of the courtyard when each smaller space is 5 feet on each side is 100 square feet.