Step-by-step explanation:
1. A four-sided polygon is a/an
a. octagon
b. hexagon
c. <u>quadrilateral</u>
d. pentagon
e. heptagon,
2. a five-sided polygon is a/an
a. heptagon
b. quadrilateral
c. <u>pentagon</u>
d. octagon
e. hexagon
3. a six-sided polygon is a/an
a. pentagon
b. octagon,
c. heptagon
d. <u>hexagon</u>
e. quadrilateral
4. a seven-sided polygon is a/an
a. quadrilateral
b. pentagon
c. hexagon
d. octagon
e. <u>heptagon</u>
5. an eight-sided polygon is a/an
a. quadrilateral
b. pentagon
c. hexagon
d. <u>octagon</u>
e. heptagon
<u>Bold and underlined words are answers.</u>
Answer:
5 mph
Step-by-step explanation:
The relation between speed, distance, and time is ...
speed = distance/time
Filling in the given values, we find the speed to be ...
speed = (1/4 mi)/(1/20 h) = (1/4)(20/1) mi/h = 5 mi/h
Elena's speed is 5 miles per hour.
Ah, one of my FAVORITES!
1. Take 2 points, ill take (0, 0) and (4, 12)
2. Set them as "1" and "2" so (0, 0) be 1 and (4, 12) be 2.
3.

and insert the equations.
4. You get

which simplifies to

.
5.

=3
6. Slope = 3
Hope this helps ^^
Answer:140 C
Step-by-step explanation:
1.)divide by 5 on each side to obtain
Abs(2x+3)=45
2x+3=45 or 2x+3=-45
2x=42 or 2x=-48
x=21 or x=-24