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Len [333]
2 years ago
9

PLEASE HELP I HAVE 5 MIN TO TURN THIS IN!!!!!!!!!!!!!

Mathematics
2 answers:
Levart [38]2 years ago
8 0

Answer:

<h3> x² - 9x + 16</h3><h3 />

Step-by-step explanation:

(-5x² - 9x + 6) + (6x² + 10)

= -5x² - 9x + 6 + 6x² + 10

=  6x² - 5x² - 9x + 6 + 10

=  x² - 9x + 16

s344n2d4d5 [400]2 years ago
6 0

Answer:

The answer is x²-9x+16

Step-by-step explanation:

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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
Find the measure of angle U
marin [14]

Answer:

30

Step-by-step explanation:

i promise this is the answer i go to k12 and got the answer correct

8 0
3 years ago
For the following reports about statistical studies, identify the following items (if possible). If you can't tell, then say so-
Ira Lisetskai [31]

Answer:

  1. Population: Soil around a former waste dump
  2. Parameter: Concentrations of toxic chemicals
  3. Sample frame: Accessible soil around dump
  4. Sample: 16 soil samples
  5. Method: Unclear
  6. Bias: Uncertain if soil samples were randomly chosen

Step-by-step explanation:

The above answer explanation can be more clear by understanding that the population is the soil around the former waste dump and the samples are 16   which were taken from  EPA.In report, the method is unclear too.

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3 years ago
Divide using long division
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5p squared - 2p - 8 - 8 over p+3
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2 years ago
Please solve the question
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U should do like this... But sry I don't know third part

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