Answer:
-7a+11
Step-by-step explanation:
Point A shows that she is incorrect.
With functions, you can perform the "straight line test through each point. If the line goes through both points, you know it's not a function.
If we plotted point A, it'd fail the straight line test because the given point (-6, 7) already has -6 as an x value.
Hope this helps!
Answer:

Step-by-step explanation:
The surface area of a square pyramid is the sum of the area of the squared base + 4 times the area of each triangular face, therefore:

where:
is the area of the base, where
L is the length of the base
is the area of each triangular face, where
h is the height of the face
Substituting,

For the model in this problem,
L = 12
h = 8
Therefore, the surface area here is:

Answer:
1
Step-by-step explanation:
Answer:
90 mL oil
210 g onions
1,350 g potatoes
1,500 mL milk
Step-by-step explanation:
You would just multiply each thing by 3, because the original recipe is for 5 but he wants to make it for 15, which is 3 times the original