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salantis [7]
3 years ago
7

PLEASE HELP ASAP!!! 30 PTS

Mathematics
1 answer:
lina2011 [118]3 years ago
3 0
I think the answer is C
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What is the perimeter of the triangle shown on the coordinate plane, to the nearest tenth of a unit?
Leno4ka [110]
To calculate the perimeter, consider each side separately.

Right side: This is easiest since it's a vertical line - it's 7 units long.

Top side: If you look carefully, this side is really the hypotenuse of a triangle that is 1 unit tall and 6 units long. Using the Pythagorean Theorem, you can calculate the length of the hypotenuse to be 1^2 + 6^2 = c^2 --> c = 6.1

Left side: just like the top side, this side is the hypotenuse of a triangle that is 6 units tall and 6 units long. Pythagoras again: 6^2 + 6^2 = c^2 --> c = 8.5

Add these three numbers to get the perimeter: 7 + 6.1 + 8.5 = 21.6
3 0
3 years ago
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Analyze the diagram below and answer the question that follows. If <10 and <15 are congruent, which lines are parallel? A.
yanalaym [24]

If angle 10 and 15 are congruent ( the same) that would mean lines a and b would need to be parallel with each other because that have the same angles.

The answer ic C.

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3 years ago
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What is x2 – 6 = 16x + 30 rewritten in standard form, then factored?
kaheart [24]

Answer:

Step-by-step explanation:

x^2-6=16x+30\\\mathrm{Subtract\:}30\mathrm{\:from\:both\:sides}\\x^2-6-30=16x+30-30\\Simplify\\x^2-36=16x\\\mathrm{Subtract\:}16x\mathrm{\:from\:both\:sides}\\x^2-36-16x=16x-16x\\\Simplify\\x^2-16x-36=0

5 0
3 years ago
It takes a printer 10 hours to print the class schedules for all of the students in a college. A faster printer can do the job i
Naya [18.7K]

Answer:

8 hours

Step-by-step explanation:

pretty sure

6 hours is in half and 10 hours is in half add it up and you get 8?

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3 years ago
True or false.200centimeters=2meter
katovenus [111]

Answer:

<h2>True</h2>

Step-by-step explanation:

1 meter = 100 centimeters

therefore 2m = 2(100cm) = 200cm

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3 years ago
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