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BlackZzzverrR [31]
4 years ago
7

What is the definition of a surd.Give an example.​

Mathematics
1 answer:
maria [59]4 years ago
4 0

Answer:(of a number ) irrational

Step-by-step explanation:

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Which value is the reciprocal of −238?
ch4aika [34]
The answer is -1/238
5 0
3 years ago
Jack took a test and got 13 out of 17 points. He took a make-up test and got 12 out of 15 points.
andrezito [222]
The answer is choice A, a 3.5% increase.
12/15 = 80%
13/17 = 76.47%

80% - 76.47% = 3.5%
6 0
3 years ago
Read 2 more answers
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
29. Javan ran 12 laps around the field to
Murrr4er [49]

Okay, so you first make this proportion...

\frac{1}{12}=\frac{4/6}{x}

x=12x(4/6)=8 laps

answer: 8 laps

6 0
4 years ago
GIVING 40 POINTS!! PLEASE ANSWER FAST WILL REPORT IF WRONG!!!
Leni [432]

Answer:

Step-by-step explanation:

1. Proportion.

\frac{3}{7.5}  =  \frac{1}{x}

2.Lets cross multiply.

3x=7.5

3.Solve

3x=7.5\\divide 3x -on- both-sides\\\\

________________

x=2.5

1=2.5\\1:2.5

Hope this helps :)

6 0
3 years ago
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