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Andru [333]
3 years ago
12

Classify a triangle with side lengths 5, 12, and 13.

Mathematics
1 answer:
maw [93]3 years ago
5 0

9514 1404 393

Answer:

  right

Step-by-step explanation:

You should recognize that (5, 12, 13) is a Pythagorean triple, so are the lengths of sides of a right triangle.

__

In any event, you can check to see.

  5² +12² = 25 +144 = 169 = 13²

The side lengths satisfy the Pythagorean theorem, so correspond to sides of a right triangle.

_____

Some Pythagorean triples commonly seen in algebra, geometry, and trig problems are ...

  (3, 4, 5), (5, 12, 13), (7, 24, 25), (8, 15, 17), (9, 40, 41)

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Liz went shopping at the early bird sale. She gets 25% off her entire purchase for shopping before 9:00 AM. She bought a set of
scZoUnD [109]

Answer: Her total before tax is $57.56.

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

  • <em>Set of knives: $62.50 </em>
  • <em>Pot holders (3): $4.75 each </em>

First we have to sum the prices:

$62.50 + ($4.75 x3) = $76.75 (total without discount)

To calculate the discount we have to multiply the total by 0.25 (25/100 = 0.25 decimal form).

Mathematically speaking:

$76.75 x 0.25 =$19.18

And finally we subtract the value calculated to the total without discount:

$76.75 - $19.18 = $ 57.56

Her total before tax is $57.56.

Feel free to ask for more if needed or if you did not understand something.

8 0
3 years ago
What are the roots of -12x2 + 11x − 3 = 0?
Nataly_w [17]
-12x² + 11x - 3 = 0
x = <u>-(11) +/- √((11)² - 4(-12)(-3))</u>
                        2(-12)
x = <u>-11 +/- √(121 - 144)</u>
                   -24
x = <u>-11 +/- √(-23)
</u>              -24
x = <u>-11 +/- i√(23)</u>
             -24
x = <u>-11 + i√(23</u>)                x = <u>-11 - i√(23)</u>
            -24                                   -24
x = ¹¹/₂₄ - 0.0416√(23)      x = ¹¹/₂₄ + 0.0416√(23)
<u />
5 0
3 years ago
Adam has sticks of the following lengths: (3x+4) (2x+10) (x+12)cm
gladu [14]
Option I
(3x+4)cm =(2x+10)cm
3x-2x=6
x=6
Option II
(3x+4)= (x+12)
3x-x=12-4
2x=8
x=4
Option III
(2x+10)= (x+12)
2x-x=12-10
x=2
3 0
4 years ago
Read 2 more answers
Z
andrey2020 [161]
The answer is B.103 degrees
7 0
3 years ago
20 ÷ ____ = 5 need your help
lbvjy [14]

Answer:

4

Step-by-step explanation:

4 0
3 years ago
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