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Papessa [141]
3 years ago
9

How is constructing an angle bisector similar to constructing a perpendicular bisector?

Mathematics
1 answer:
Sophie [7]3 years ago
4 0
Hello,
Your answer would be D.
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Solve the system, or show that it has no solution. (If there is no solution, enter NO SOLUTION. If there are an infinite number
liberstina [14]

Answer:

The system has an infinite set of solutions (x,y) = (x, \frac{x-5}{4})

Step-by-step explanation:

From the first equation:

20x - 80y = 100

20x = 100 + 80y

x = \frac{100 + 80y}{20}

x = 5 + 4y

Replacing on the second equation:

-14x + 56y = -70

-14(5 + 4y) + 56y = -70

-70 - 56y + 56y = -70

0 = 0

This means that the system has an infinite number of solutions, considering:

x = 5 + 4y

4y = x - 5

y = \frac{x - 5}{4}

The system has an infinite set of solutions (x,y) = (x, \frac{x-5}{4})

8 0
3 years ago
Calculate 3217. km + 13.1 km + 1.30 km. round off if necessary to apply the rule of significant figures for addition and subtrac
QveST [7]
3217 + 13.1 + 1.3 can also be written as

3217.0
+ 13.1
     1.3
----------
<span>3231.4
</span>
Your final answer should be <span>3231.4 or option 4. Hope this helps!</span>
6 0
3 years ago
What is 1 times 1 plus 85 plus an extra 4
Elodia [21]

Answer: 90

Step-by-step explanation: 1 Multiplied By 1 Is 1 So If You Add 85 To It You Get 86 Add 4 To That You Get 90

6 0
3 years ago
Read 2 more answers
This app doesn’t know how to read a picture
SSSSS [86.1K]
It’s the 3rd one hopefully this helps
5 0
3 years ago
Two boys who live 14 miles apart start at noon to walk toward each other at rates of 3 mph and 4 mph respectively. In how many h
aniked [119]
Since you have the answers given, just track their walking.
After one hour, one guy has covered 3mi and the other 4mi, which is in total 7, not 14
After 2 hours, one guy has covered 6mi and the other 8mi, which is 14mi

The algebraic way would be:
3x +4x = 14 *x being the hour
7x = 14
x =2
6 0
3 years ago
Read 2 more answers
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