<span>x^3 + 3.4y when x = 4 and y = 2
= 4^3 + 3.4 (2)
= 64 + 6.8
= 70.8
</span>
Answer:
The expression for the perimeter of the rectangle is: 
Step-by-step explanation:
Perimeter of a rectangle:
A rectangle has length l and width w. It's perimeter is given by:

In this question:

So

The expression for the perimeter of the rectangle is: 
Answer:
V =12.167 cm^3
Step-by-step explanation:
V = s^3 is the volume of a cube where s is the side length
The side length of the cube is 2.3 cm
V = ( 2.3 cm) ^3
V =12.167 cm^3
Answer:
i think its y = x² + 6x - 55
Answer:24
Step-by-step explanation:Exponential functions are of the form f(x) = ab^x