Answer:
1. is a solution
2. is a solution
3. not a solution
4. not a solution
5. not a solution
6. is a solution
7. is a solution
8. not a solution
Step-by-step explanation:
Answer:
neither; perpendicular; parallel; neither; neither
Step-by-step explanation:
parallel line is where the 2 slopes have same gradient and perpendicular means the two lines have a -1 slope when producted
Topic: coordinate geometry
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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: 1.689
Step-by-step explanation:
To solve .72(x)+.20(100x)=35
We first open the brackets to give
0.72x + 20x = 35
20.72x = 35
Divide both sides by 20.72 to get the value of x
x = 35/20.72
x = 1. 689
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