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Yuki888 [10]
3 years ago
7

What six parts must a proof contain?

Mathematics
1 answer:
zhuklara [117]3 years ago
6 0
A proof should contain: 
The diagram
The givens
Prove statement
reason column
statement column 

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Devin wants to use his 12% employee discount to buy a video game that is priced at $57.80. A 8.75% sales tax is applied to the d
lesantik [10]

Answer:

43.73

Step-by-step explanation:

use a calculater

5 0
3 years ago
Read 2 more answers
A polyhedron has 8 vertices and 14 edges. How many faces must it have?
Scorpion4ik [409]
We know that

The Euler's formula state that, the number of vertices, minus the number of edges, plus the number of faces, is equal to two

V - E + F = 2
clear F
F=2-V+E

in this problem
V=8
E=14
F=?
so
F=2-8+14
F=8

the answer is
8 faces
7 0
3 years ago
To solve a system of inequalities, you just need to graph each inequality and see wich points are in the overlap of the graphs.
GrogVix [38]
<h3>Answer: True</h3>

This is often how many math teachers and textbooks approach problems like this. The overlapped region is the region in which satisfies every inequality in the system. Be sure to note the boundary of each region whether you're dealing with a dashed line or a solid line. Dashed lines mean points on the boundary do not count as solution points, whereas solid boundaries allow those points as part of the solution set.

Side note: This is assuming you're dealing with 2 variable inequalities. If you only have one variable, you don't need to graph and instead could use algebra. Graphing doesn't hurt though.

3 0
3 years ago
Given that f(x) = x² + 4x, evaluate f(-2). -4 -8 -12
Aleks [24]
<span>f(x) = x² + 4x
so
</span><span>f(-2) = (-2)² + 4(-2)
f(-2) = 4 - 8
f(-2) = -4

answer
-4</span>
6 0
3 years ago
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The bill is $100.82. Find the amount of a 15% tip.
amm1812
The tip is $15.12. The total price would be $115.94. I hope this helps you. 
5 0
3 years ago
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