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fredd [130]
3 years ago
15

Which of the following side lengths can form a triangle?

Mathematics
2 answers:
Dmitry [639]3 years ago
5 0

Answer:

side lengths can form a triangle

21 cm, 41 cm, and 60 cm..

Pachacha [2.7K]3 years ago
3 0

I'll be solving this by using the Triangle Inequality Theorem: a+b>c, a+c>b, and b+c>a

A.<u> </u><u>54 mm, 65 mm, and 120 mm:</u> 54=a, 65=b, 120=c and 54 + 65 > 120 so it's false.

B. <u>12 in, 43 in, and 56 in:</u> 12=a, 43=b, 56=c, 12 + 43 > 56 so false

C. <u>16 ft, 24 ft, and 42 ft:</u> 24=a, 16=b, 42=c, but 16 + 24 > 60 so it's false

D. <u>21 cm, 41 cm, and 60 cm:</u> 21=a, 41=b, 60=c

21 + 41 > 60

21 + 60 > 41

41 + 60 > 21

It equals all three formulas so D is the right answer.

Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great Valentines Day! :-)  

- Cutiepatutie ☺❀❤

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4x-y=2 2x+9y=-12 unsure how to solve
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Simple, use the process of elimination to figure this out:

4x-y=2
2x+9y=-12

Convert these, to be able to find either x or y.

2(4x-y=2)   8x-2y=4   multiply by 2.
then
4(2x+9y=-12)  8x+36y=-48

Which makes them

8x-2y=4
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8x+36y=-48

-38y=52

This simplified makes it y= -26/19.

Then plug y back into the original equation

4x-y=2

4x-(-26/19)=2

Making it x= 3/19.

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3 years ago
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The number 85 is decreased to 83. What is the percentage by which the
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Answer:

~ 2.3%

Step-by-step explanation:

A percentage is a amount divided by the total.

2/85 (2 is the amount decreased) 0.02352941176470588235294117647059‬

That makes around 0.023.

That multiplied by 100 is 2.3 and that makes the percentage.

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2 years ago
What is 20,000 rounded to the nearest ten
vodka [1.7K]

Answer:

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Step-by-step explanation:

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Answer:

-7 = n

Step-by-step explanation:

0,002 \times 0,0004 = 0,0000008

0,0000008 = 8 \times {10}^{-7}

* You must make sure that you have seven zeros in your decimal.

I am joyous to assist you anytime.

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What is 3a+2c=26 solve for a and c
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Simplifying

3a + 2b + c = 26

Solving

3a + 2b + c = 26

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-2b' to each side of the equation.

3a + 2b + -2b + c = 26 + -2b

Combine like terms: 2b + -2b = 0

3a + 0 + c = 26 + -2b

3a + c = 26 + -2b

Add '-1c' to each side of the equation.

3a + c + -1c = 26 + -2b + -1c

Combine like terms: c + -1c = 0

3a + 0 = 26 + -2b + -1c

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