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Fiesta28 [93]
3 years ago
9

Is a triangle with sides of length 6ft., 21ft,. 23ft,. a right traingle? show how you know.

Mathematics
1 answer:
marissa [1.9K]3 years ago
5 0

No it is not a right triangle. Because using Pythagorean's Theorem 6 squared, 36, plus 21 squared, 441, is 477. And when you do 32 squared is equals to 529. And therefore 477 is not equal to 529.

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Gordon bought lunch for $8.43. He paid with a $20 bill. How much change did he get back?
anzhelika [568]

Answer:

$11.57

Step-by-step explanation:

20 - 8.43 is 11.57

Hope this helps.

6 0
3 years ago
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If Erin built a rectangular prism shaped trough for her horses to eat from the trough is 3 m long 1 m wide and 1 m high hay for
telo118 [61]
It would cost $33.00 hope that helps
3 0
3 years ago
Meredith solved a quadratic equation. Her work is shown below.
Damm [24]

Answer:

Step 2

Step-by-step explanation:

Meredith made a fatal mistake or error in step 2;

Any quadratic problem will always have two solutions. Therefore since, we only have one solution here, it is wrong. The mistake was incurred in step 2;

  From the given problem ;

    <u> Wrong                                                  right</u>

    2(x + 4)² = 242

    (x + 4)² = 121     Step 1  

     x+4=11              Step 2                  x + 4  = ± 11

     x  = 7                Step 3                  x + 4  = 11 or x + 4  = -11

                                                           x  = 11- 4     or    x  = -11 - 4

                                                           x  = 7 or -15

3 0
3 years ago
A standard toilet uses 1.6 gallons per flush. If a toilet is flushed five times per day, how much water will be used in a month
djyliett [7]

Answer:

I believe the answer is 48 gallons.

Step-by-step explanation:

Multiply 1.6 by 30 and you get 48

6 0
2 years ago
Read 2 more answers
What is the volume of the cylinder below radius 8 height 3 in pi units Answer choices: A)96pi unit^3 B)192pi unit^3 C)225pi unit
WARRIOR [948]

Hey!

The formula for finding volume of a cylinder is: π · r² · h

r = 8 \\ r^{2} = 8 \times 8 = 64

h = 3

Now multiply

\pi \times 64 \times 3 = 192\pi

<em>Your answer is B)192π units³</em>

Good luck and hope this helps! :)

7 0
3 years ago
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