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ipn [44]
3 years ago
14

Is 13 cm, 14 cm, and 15 cm a right triangle?

Mathematics
1 answer:
scoray [572]3 years ago
8 0

Answer:

Not a triangle

Step-by-step explanation:

First you have to use the Pythagorean theorem

a^2 +b^2=c^2

13^2+14^2=15^2

13*13=169

14*14=196

15*15=225

169+196=225 is not true

This IS NOT a right triangle

I hope this helps!

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A market sells blueberries for $3 per pint. The first day, the market sold a total of $35 worth of blueberries. The second day,
Eddi Din [679]

Answer:Around 50 pints

Step-by-step explanation:

$35=$40

$47=$50

$57=$60

$40+$50+$60=$150/3=50

6 0
2 years ago
5/6 – 6/12<br><br>I am lost bc I'm not a math person so pls help me?
vovangra [49]

First, we must find the common denominator (12)            ✵

10/12-6/12            ✵                 ✵                              ✵                              ✵

Now, why 10?                                     ✵                   ✵                      ✵

Because we CAN'T just take the denominator and change it; we must change both the denominator AND the numerator:

✵                                      •          -                                      ○          

4/12                  ✧                             ✩                                  ✶            ✺         ✱  

We can simplify, or reduce, this fraction:                  ✱  ✱

1/3              ✩                              ✦                                        ✤

I hope it helps!

*VirtuosoTeen*

7 0
3 years ago
Read 2 more answers
In the video, the water level was 15 milliliters before adding the chain, and 20 milliliters after adding the chain. When I weig
mr_godi [17]

Answer:

  • 39.7%

Explanation:

<u />

<u>1. First find the density of your chain</u>

  • Density = mass / volume

  • Volume = displaced water volume

                      = Volume of Final level of water - initial level of water

                     = 20 ml - 15 ml = 5 ml

  • Mass = 66.7 g

  • Density = 66.7g / 5 ml = 13.34 g/ml

<u />

<u>2. Second, write the denisty of the chain as the weighted average of the densities of the other metals:</u>

Mass of gold × density of gold + mass of other metals × density of other metals, all divided by the mass of the chain.

Calling x the amount of gold, then the amount of other metals is 66.7 - x:

        \dfrac{19.3\cdot x+9.7\cdot (66.7-x)}{66.7}=13.34

       19.3x+635.66-9.7x=889.778

      9.6x=254.118\\\\x=26.47

Then, there are 26.47 grams of gold in 66.7 grams of chain, which yields a percentage of:

  • (26.47 / 66.7) × 100 = 39.7%
7 0
3 years ago
Dave is making a recipe for soup that includes 12 cups of water and 3 cups of broth. how many times as much water as broth will
OlgaM077 [116]

Answer: There is 4 times as much water than broth in the soup recipe.

Step-by-step explanation:

12/3 = 4

3 0
3 years ago
Read 2 more answers
The vertices of quadrilateral PQRS are listed.
Klio2033 [76]

Answer:

I think it's a rectangle. Any time you need to plot points on a graph go to desmos graph and plot them.

6 0
2 years ago
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