Answer:
B.
Step-by-step explanation:
This list of ordered pair is a function because to be a function, you can not have a repeating x-value. In the other options, they consist of a repeating x-value.
A. Repeating 3
C. Repeating -1
D. Repeating 2
Hence,
the correct option is B.
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Answer:
13.01d−2.65
Step-by-step explanation:
hope it helps :)
The value of p would be 40. This is because the ratio of p:q = 10:5. this could be simplify into p:q = 2:1. Applying the ratio p:20 = 2:1, P=40.
Answer:
b.
1017 sq. cm
Step-by-step explanation:
Surface area:
The surface area of a sphere with radius r is given by:

In this question:
Diameter of 18, since the radius is half the diameter, 
The surface area is:

So 1017 square centimeters, and the best option is b.
The answer is 12y+30.
Twice the width would be 10+4y, so the length is 10+4y.
To find the perimeter, we can do 2(5+2y) + 2(10+4y).
That equals 10+4y+20+8y.
Which, equals 12y+30.