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hodyreva [135]
3 years ago
10

Can someone write a full proof for #20?

Mathematics
1 answer:
mixer [17]3 years ago
5 0
Write the givens first, then state AED is isosceles so angles A and D are also equal, and so on

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Round to the nearest tenth wa hit is the perimeter of the triangle
klio [65]

Answer:

D. 11.8 cm

Step-by-step explanation:

This triangle is a 30°-60°-90° triangle. There is a shortcut to find the lengths of the sides of a 30°-60°-90° triangle. The longest side is the hypotenuse. The longest side is double the shortest side or, the shortest side is half the longest side. Here the longest side is 5, so the short leg (shortest side) is 2.5

The other shortcut is that the longer leg is the

short leg×sqroot3

Here, the short leg is 2.5, so the long leg is 2.5×sqroot3

Perimeter is all the sides added together.

5 + 2.5+ 2.5×sqrt3

Do the times first.

5 + 2.5 + 4.3

= 11.8

6 0
2 years ago
Find the product. <br> (2xyz) (-4x2yz)<br><br> PLEASE HELP!!! ASAP!!!
melamori03 [73]

Answer:

-16x^{2} y^{2}z^{2}

Step-by-step explanation:

Let's calculate the answer to the second parenthesis. Just multiply throughout to get -8xyz. Then, multiply the first parenthesis by the second. Multiply the constants (-8 and 2) first to get -16, multiply the x's together to get x^2, the y's together to get y^2, and the z's together to get z^2. Put it all together to get -16x^{2} y^{2}z^{2}.

6 0
3 years ago
Read 2 more answers
I need help with this
erik [133]

Answer:

Female: 11

Male: 16

Total:

(1) 34

(2) 25

(3) 100

Step-by-step explanation:

Female:

45 - 18 - 16 = 11

Male:

55 - 25 - 14 = 16

Total:

(1) 18 + 16

(2) 14 + 11 = 25

(3) 45 + 55 =

8 0
2 years ago
Read 2 more answers
5 (2x + 2) - 22=2 (3x+4)​
Natalija [7]

Answer:

x+5

Step-by-step explanation:

If you need the work, let me know!

4 0
2 years ago
22, 24,27,27,25,25,25,23,24,32,28,20 a) Determine as mediana dessas idades a cima: b)Determine a amplitude dessas idades *COLOQU
Irina-Kira [14]

Answer:

s

Step-by-step explanation:

3 0
3 years ago
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