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mamaluj [8]
3 years ago
8

What is the answer of the Fractions listed? Will give Brainliest 20 points

Mathematics
2 answers:
Alex73 [517]3 years ago
8 0

Answer:

(-4) - 2 1/2 = -6.5

Step-by-step explanation:

( −4 ) − 2 1/2 = -13/2

-13/2 = -6 1/2  

ohaa [14]3 years ago
7 0

Answer:

- 6 1/2

Step-by-step explanation:

-4 - 2 1/2

Since the signs are the same, we add them together and take the signs

4+2 1/2 = 6 1/2

Take the sign

- 6 1/2

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(x^2 + x - 17) + (x − 4) divide using polynomial long division
Effectus [21]

Answer: x+5 with a remainder of 3 (can also be said as 3/x-4)

Step-by-step explanation: See attachment

6 0
2 years ago
Se golpea (chuta) un balón sobre el piso y sale dando botes parabólicos cada vez menores. Si se lanzo inicialmente con una veloc
Ipatiy [6.2K]

Answer:

a)d = 180,91 m

b)t = 11,76 seg

Step-by-step explanation:

Para el lanzamiento de proyectil, la ecuación que nos da la velocidad en V(y) es:

V(y)  = Voy - g*t

en donde Voy = Vo * senα    ( donde Vo es la velocidad inicial, α el angulo del disparo.

Si en esta ecuación hacemos V(y) = 0 estamos en el punto donde el componente en el eje y de la velocidad del proyectil es cero, ese punto es el punto medio del recorrido.

0 =  Vo*sen 60⁰     - g*t

g*t  =  Vo* √3/2

t  = { 32 [m/s] * √3 }2*9,8 [m/s²]

t = 16*√3  / 9,8

t = 2,8278 seg

El tiempo total del primer recorrido es entonces por simetría

t₁ = 2 * 2,8278           t₁  = 5,6556 seg

La distancia del primer impacto al suelo es:

x = Vox * t₁                        ( Vox es constante   Vx = Vo*cos 60⁰ )

x  =  32 * (1/2) * 5,6556

x₁  =  90,49 m

Aplicando los mismos criterios ahora para el segundo bote

Ahora Vo = 32 -  32*(1/4)

V = 24 m/s

g*t  =  24 * sen 50⁰

t =  24* 0,7660/ 9,8  

t =  1,8759

2*t  = 2*1,8759

t₂  = 3,7518 seg

x₂  =  Vox * t₂

x₂  =  24* 0,6428*3,7518

x₂  =  57,88 m

Y para el tercer bote Vo =  24 - 24(1/4)        Vo = 18 m/s     α = 40⁰

t = 18 *0,6428/9,8

t  = 1,18

2t  = t₃  = 2*1,18

t₃ = 2,36 seg

x₃  = Vox * 2,36                Vox = Vo*cos 40      Vox = 18*0,7660  

Vox = 13,79

x₃  = 13,79*2,36

x₃  = 32,54 m

La distancia total será

d = x₁  + x₂ + x₃

d  =  90,49  + 57,88 + 32,54

d = 180,91 m

y el tiempo total será la suma de los tiempos

t =  t₁  +  t₂  +  t₃

t  = 5,65 + 3,75 + 2,36

t = 11,76 seg

8 0
3 years ago
3)
Naddika [18.5K]

Answer: 1/5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please help right away
amid [387]

Answer:

the second one it shows it going up

8 0
3 years ago
State the place value of:. (i) 8 in 287​
olchik [2.2K]

Answer:

80

Step-by-step explanation:

because 8 is in tens place

so it´s value is 8*10=80

3 0
2 years ago
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