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Gemiola [76]
3 years ago
6

Use the Pythagorean Theorem to confirm the three sides of a right triangle.

Mathematics
1 answer:
adell [148]3 years ago
5 0

Answer:

3) confirmed right triangle

4) not a right triangle

Step-by-step explanation:

3) 5^2 + 12^2 = 13^2

25 + 144 = 169

169 = 169

4) 4^2 + 10^2 = 20^2

16 + 100 = 400

116 does not equal 400

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Help Please! And THANK YOU!
Semenov [28]

Answer:

100

Step-by-step explanation:

\frac{3.75 \times 100}{1.50 \times 100}  =  \frac{375}{150}

<h3>so the dividend and divisor were both multiplied by 100.</h3>
6 0
3 years ago
Evaluate 3x² - 4xy + 2y² - 1 for x = - 3 and y = 5
zhannawk [14.2K]

Answer:

3x^{2} - 4xy + 2y { }^{2} - 1  \\ 3 \times ( - 3) { }^{2}  - 4 \times ( - 3)  \times 5 + 2 \times 5 {}^{2} - 1 \\ (3 \times 9) - ( - 60) + 50 - 1 \\ 27 + 60 + 50 - 1 \\ 165

8 0
1 year ago
Read 2 more answers
Pls help. No files pls. Will give brainliest.
nordsb [41]

To find f(-20), first figure out which piece x = -20 fits with.

Since -20 < -12, x = -20 first in the domain used by the third piece.

For f(-20), treat this function as if it was just f(x) = 3x-7.

f(-20) = 3(-20) -7

         = -60 - 7

         = -67

6 0
3 years ago
LM is the midsegment of ABC is AC is 28 centimeters long , how long is LM?
mamaluj [8]

Answer:

LM = 14

Step-by-step explanation:

LM = AC/2

LM = 28/2

<u>LM = 14</u>

Hope this helps!

4 0
3 years ago
PLZZ HELPP FAST WILL GIVE MEDAL!!
Afina-wow [57]
8 5 8 5 hopefully its right i'm not good at this kind of stiff
6 0
4 years ago
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