Which of the sets of ordered pairs represents a function

Mathematics

2 answers:

kumpel [21]2 years ago

7 0

4. because it is just numbers with no functions

rjkz [21]2 years ago

4 0

4 neither of them are functions because the x repeats itself

You might be interested in

MATCH THE NUMBER ( WORD) TO THE CORRECT DEFINITION (LETTER)

Shtirlitz [24]

1. c
2. e
3. c
4. a
5. b

6 0

2 years ago

What is the area of the composite figure

oksano4ka [1.4K]

Answer:

Step-by-step explanation:

To find the area of a composite figure, separate it into the regular parts which make the irregular shape. This shape is composed of a semi-circle and a rectangle. Find the area by finding the area of each shape.

Semi-circle:

The semi-circle has a diameter of 2 + 4 + 2 = 8. The area this figure uses the radius which is half the diameter. The radius is 4. To find the area substitute r = 4 into $\pi r^2 = \pi 4^2 = 16\pi$ . However the semi-circle has a smaller circle cut out of it with radius 2. The area of the smaller circle is $\pir^2 = \pi 2^2=4\pi$ . The semi circle in the shape is the areas subtracted which equals 12π.