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natta225 [31]
3 years ago
9

A circle has a diameter of 16 inches. Which formula represents how to find the area of the circle?

Mathematics
1 answer:
SOVA2 [1]3 years ago
8 0
Area = pie times r^2
we have the diameter so the radius would be 8inches. meaning the answer is
B - pie tunes 8^2
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Producto de (10x+7)(10x-7)
Marat540 [252]

Answer:

(10x−7)^2

Step-by-step explanation:

(10x+7)(10x-7)

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I need help with question 15
Nadusha1986 [10]

A rational number is a number that can be written in the form:

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1 year ago
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svlad2 [7]

Answer:

Lo primero que debemos saber, es que la gráfica de pastel nos permite dividir a una población, la cual sería el 100%, en porcentajes menores que representan algo.

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Y en un círculo, tenemos un ángulo de 360°

Entonces comenzamos con la equivalencia:

360° = 100%

Entonces, ¿a que grado corresponde el 50%? Planteamos la ecuación:

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Si tomamos el cociente entre las ecuaciones:

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obtenemos:

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resolviendo para x, obtenemos:

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Para los otros porcentajes hacemos lo mismo.

Para el de 20% tenemos:

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y/360° = 20%/100%

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z = 10%

planteando la ecuación como antes:

z/360° = 10%/100%

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