Sarina throws a ball up into the air, and it falls on the ground nearby. The ball's

Mathematics

2 answers:

Anuta_ua [19.1K]3 years ago

8 0

Answer:

Option C.

Step-by-step explanation:

It is given that the ball's height, in feet, is modeled by the function

$f(x)=-x^2-x+3$

where, x represents time in seconds.

We need to find the height of the ball when Sarina throws it. It means, we need to find the initial height of the ball.

Substitute x=0 in the given function, to find the initial height.

$f(0)=-(0)^2-(0)+3$

$f(0)=0+0+3$

$f(0)=3$

The height of the ball is 3 feet when Sarina throws it.

Therefore, the correct option is C.

konstantin123 [22]3 years ago

3 0

Answer:

C C) 3 feet

Step-by-step explanation:

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Find the height of a cone with a volume of 150 in^3 and a diameter of 20 in. Use 3.14 for π.

Zolol [24]

Volume = $\frac{1}{3} \pi r^{2} h$

150 = $\frac{1}{3}$ x 3.14 x 10 x 10 x h

150 x 3 = 314 x h

h = 450/314

h = 1.43 inches

6 0

3 years ago

f(x)=4 hallar el dominio, codominio, ceros o raices, vertices, asintotas, tabla de valores, graficas, identificar el tipo de fun

nekit [7.7K]

Answer:

Tipo de función: Función Constante o Función Polinómica de Orden Cero

Dominio: $Dom \{f(x)\} = \mathbb{R}$

Codominio: $Ran \{f(x)\} = 4$

Asíntota: $y = 4$

Raíces: No tiene.

Vértices: No tiene.

La tabla de valores y el gráfico se encuentran adjuntos al fondo.

Step-by-step explanation:

Sea $f(x) = 4$ , el cual representa a una Función Constante o Función Polinómica de Orden Cero, cuyos dominio y codominio son $Dom \{f(x)\} = \mathbb{R}$ y $Ran \{f(x)\} = 4$ . No tiene vértices. Esta función tiene una asíntota horizontal coincidente con la función ( $y = 4$ ) y carece de raíces al ser $f(x) \ne 0$ para todo $x\in \mathbb{R}$ .