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viva [34]
3 years ago
6

Help please Geometry test

Mathematics
1 answer:
ahrayia [7]3 years ago
6 0

Step-by-step explanation:

To find x,

21x - 9 = 117

21x = 126

x = 6

To find arc AB,

21(6) - 9 = 117

To find Arc AE,

117 + x = 180

x = 63

Arc ABC,

117 + 63 = 180

ACE

180 + 27 + 90 = 297

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I WILL CASH APP anyone who could complete my virtual math 3 test!!!!
OLga [1]

Answer:

What grade are you in?

Step-by-step explanation:

Depends on the problems

8 0
3 years ago
Trains Two trains, Train A and Train B, weigh a total of 479 tons. Train A is heavier than Train B. The
Harlamova29_29 [7]

Answer:

train A is 403

and train B is 72

because if the total weight is 479 and train A is heavier than train B with a difference of 403 to get their weights each, you'll say 479( total amount of weight) - 403( the difference) which or = 72...

where you have A as 403 and B as 72

8 0
3 years ago
Simplify -1/2x+3-4x+5+3/2x
gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

-1/2x+3-4x+5+3/2x

=-1/2x+3/2x-4x+3+5

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3 0
3 years ago
20 squared root is between what two integers? add explanation
lutik1710 [3]
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7 0
3 years ago
En un triángulo obtusángulo, uno de los ángulos mide 20° mas que el otro. El tercer ángulo, mide el doble que el mayor de los do
Troyanec [42]

Answer:

La medida del primer ángulo es 30°, la medida del segundo ángulo es 50° y  el tercer ángulo mide 100°.

Step-by-step explanation:

Siendo "x" el valor de un ángulo del triángulo obtusángulo, sabes que uno de los ángulos, llamado segundo ángulo, mide 20° más que el primero. Este segundo ángulo se representa como x + 20°.

Además, un tercer ángulo mide el doble que el mayor de los dos, que en este caso es el ángulo cuya expresión es x + 20°. Por lo que el doble de este será 2*(x + 20)°, que será la medida del tercer ángulo.

Teniendo en cuenta que la suma de los ángulos interiores de un triángulo es 180°. Entonces, es posible sumar los valores de cada uno de los ángulos e igualarlos a 180°:

x + x + 20° + 2*(x + 20°) = 180°

Resolviendo:

x + x + 20° + 2*x + 2*20° = 180°

x + x + 20° + 2*x + 40° = 180°

4*x + 20° + 40° = 180°

4*x + 60° = 180°

4*x = 180° - 60°

4*x = 120°

x = 120° ÷ 4

x = 30°

Entonces, la medida del primer ángulo es 30°. El segundo ángulo es calculado como x + 20° = 30° + 20° = 50° mientras que  el tercer ángulo es 2*(x + 20°) = 2*(30° + 20°) = 2*(50°) = 100°

<u><em>La medida del primer ángulo es 30°, la medida del segundo ángulo es 50° y  el tercer ángulo mide 100°.</em></u>

3 0
3 years ago
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