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lys-0071 [83]
3 years ago
13

Calculate the area of this figure to the nearest hundredth. Use 3.14 to approximate pi

Mathematics
1 answer:
Flura [38]3 years ago
5 0

Answer:

49.12 ft^2

Step-by-step explanation:

We can add the areas of the two figures

We have a triangle

A = 1/2 bh

A = 1/2 (6)(8)

A = 24

We have 1/2 of a circle so find 1/2 of the area

A = 1/2 ( area of a circle)

   = 1/2 ( pi r^2)

The diameter is 8 so the radius is 4

  = 1/2 ( 3.14 * 4^2)

   = 25.12

Add the areas together

24+25.12 = 49.12

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What is the circumference of a circle if the radius is 6cm
jarptica [38.1K]
D*pi so 6cm * pi which is ~18.849cm
4 0
3 years ago
Camilo practica tiro al blanco. En cada disparo acertado puede obtener 5, 8, o 10 puntos. En su última práctica, su puntuación t
Radda [10]

Answer:

20 disparos

Step-by-step explanation:

Primera etapa es de determinar cuantos tiros de Camilo acertaron al blanco.

Sabemos que en su última práctica, obtuvo 99 puntos con una mezcla de 5, 8 y 10 puntos.  Eso puedo se exprimir así:

5x + 8y + 10x = 99

Sabemos también que el obtuvo tantos tiros de 8 puntos que de 10 puntos, entonces

y = z

Podemos mezclar las 2 ecuaciones y substituir y por z:

5x + 8y + 10y = 99

5x +18y = 99

Una ecuación, dos variables... no es fácil... pero son números pequeños y se puede intentar soluciones.  Entonces, cuantas veces podemos multiplicar 5 y 18 para obtener 99?

El más simple es de hacer la tabla de multiplicación de 18 y ver cual número nos deja con un multiple de 5.

18 x 1 = 18 (99 - 18 = 81, no un multiple e 5)

18 x 2 = 36 (99 - 36 = 63, no un multiple de 5)

18 x 3 = 54 (99 - 54 = 45, SI, un multiple de 5)

18 x 4 = 72 (99 - 72 = 27, no un multiple de 5)

18 x 5 = 90 (99 - 90 = 9, no un multiple de 5)

Entonces, sabemos que y = 3 y z = 3

5x + 18 (3) = 99

5x + 54 = 99

5x = 45

x = 9

El tiró 9 veces por 5 puntos, 3 veces por 8 puntos y 3 veces pour 10 puntos.

En total tiró 15 veces.

Si acertó 75% (3/4) de las veces, cuantos tiros total?

\frac{15}{3/4} = \frac{15 * 4}{3} = 20

Camilo tiró 20 veces en total.

8 0
4 years ago
Which expression is the factored form of −1.5w+7.5 ?
tresset_1 [31]
The correct answer is C) -1.5(w-5).

Both numbers are divisible by 1.5.  Since there is a negative in the first term, we will factor that out as well.  This means we are dividing both terms by -1.5:

-1.5(     )

Taking -1.5 out of -1.5w, we have w left:

-1.5(w    )

Dividing 7.5 by -1.5, we have -5:

-1.5(w-5)
5 0
3 years ago
If f(x) = 2x^2-x-6 and g(x) = x^2-4 , what is the domain of f(x) divided by g(x)
Gelneren [198K]
(2x^2-x-6)/x^2-4

Factor top and bottom and you get

(2x+3)(x-2)/(x+2)(x-2)

The (x-2) cancel out each other leaving,

(2x+3)/x+2

The domain is all real numbers EXCEPT for -2. The domain can never be -2 as it would to the bottom having a zero, and that can't happen


5 0
3 years ago
Okay... i know its a lot 2 ask but i really need help w/this papaer....
givi [52]
D and I goes to the red house


7 0
3 years ago
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