Answer:
are this if its a function or not?
It is (B) I think:) hope this helps
Answer:
Step-by-step explanation:
See attachment
12. -23C
13. 28.9% Loss
14. Diagram in the attachment. The sides can be calculated with the Pythagorean Theorem. Side = 3.61 cm
15. Use trig relationships. x = 5, y = 8.66
Given: A cuboid with the dimesion below:

To Determine: The surface area of the cuboid
The formula for finding the surface area of a cuboid is given as:

From the diagram, it can be seen that

Substitute the given into the formula as shown below:

Hence, the surface area of the given cuboid is 130cm²
Here you go, hope it's right. The top one is the equation and the bottom one is the work to get the answer.