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harkovskaia [24]
3 years ago
12

PLZ HELP I NEED IT NOW

Mathematics
1 answer:
Gennadij [26K]3 years ago
6 0
a) On string number one, we know the angle created with string number three is 135 degrees. What is the measurement of angle A? Explain or defend your answer.
 The measure of angle A in this case will be given by the following mathematical relationship:
 135 + A = 180
 So we have to clear A:
 A = 180-135
 A = 45
 Answer: 
 the measurement of angle A is:
 A = 45 degrees
 b) What is the measurement of angle B? Explain or defend your answer.

 The angle B in this case, we observe that it is an angle opposite by the vertical at the angle of 135 degrees. We then have that by opposite angles with respect to line 3, then:
 B = 135 degrees
 Answer: 
 the measurement of angle B is:
 B = 135 degrees

 c) If Roger has created his tennis racket according to plan, what should be the measurement of angle C? Explain or defend your answer.

 As lines 1 and 2 are parallel lines, then we have that in this case the angles formed by both lines with respect to line 3 are the same.
 Therefore we have:
 C = A = 45 degrees
 Answer:
 the measurement of angle C should be:
 C = A = 45 degrees
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Si un triángulo tiene una hipotenusa de 15 cm y un cateto que mide 12 cm, ¿cual es la longitud del otro cateto?
BartSMP [9]

Answer:

   

9cm

Explicación:

El teorema de pitagoras nos dice que la hipotenusa al cuadrado es igual a la suma de los catetos al cuadrado:

c^{2} =a^{2} + b^{2}

Donde c es la hipotenusa y a  y b son los catetos.

Por lo cual, podemos reemplazar c por 15cm y a por 12cm :

15^{2} =12^{2} +b^{2}

Finalmente , debemos resolver la ecuación para b, así que b es igual a :

225=144+b^{2} \\225-144=144+b^{2} -144\\81=b^{2} \\\sqrt{81} =b\\9=b

Por lo tanto, la longitud del otro cateto es 9 cm

3 0
2 years ago
Someone Please help me
Artyom0805 [142]

Answer:

6.5 hours

Step-by-step explanation:

He pays a flat fee of $65 and a rate of $40 per hour, we can set up the equation:

65+40h=325\\40h=260\\4h=26\\h=6.5

4 0
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