Answer:
x=2
Step-by-step explanation:
Primero, necesitamos calcular <<a>>
Sabemos que AD=BC y AB=CD porque lados opuestos congruentes
Entonces, vamos a calcular <<a>>.
Usamos AD y BC
2a-1=4a-15
suma 15 a ambos lados
2a+14=4
añada 2 en ambos lados
14=2a
divida
7=a
Ahora, usamos esta información para calcular <<x>>
Usamos CD=AB
2a-8=4x-2
pero sabemos que <<a>> es 7
entonces:
14-8=4x-2
6=4x-2
8=4x
2=x
<<x>> es 2
(¡lo siento mi español no es perfecto!
Answer:
Step-by-step explanation:
The blue section is a right triangle. Use the Pythagorean Theorem to find the hypotenuse.
base of right triangle = 6 cm
height of right triangle = 8 cm
hypotenuse = √(6²+8²) = √100 = 10 cm
X+.8=21.6 21.6/.8=x x=27 So, in conclusion, 80% of 27 is 21.6
Answer:
The correct option is C.
Step-by-step explanation:
A baseball player hit the ball and the height of the baseball is modeled by the equation
![h=-16t^2+65t](https://tex.z-dn.net/?f=h%3D-16t%5E2%2B65t)
Where, h is height of the ball and t is time.
The height of flying bird is modeled by the equation
![h=8t+20](https://tex.z-dn.net/?f=h%3D8t%2B20)
Where, h is height of the bird and t is time.
Both functions will intersect at that point where the values of both functions are same. It is possible when the height of bird and ball are same.
Therefore the intersection points of the equations represent the time when the height of the ball and the bird are the same. Option C is correct.