Ax-bx-y=z which of the following represents the formula that could be used to find x?
1 answer:
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Answer:
Step-by-step explanation:
Para resolver este problea podemos comenzar con las identidades pares e impares, las cuales nos dicen que:
sen(-u)=-sen(u)
por lo que podemos reescribir nuestro problema como:
sen(-45°)=-sen(45°)
Luego podemos tomar los triángulos comunes (ver imagen adjunta).
y calcular la razón de seno en donde:
para obtener:
ahora podemos racionalizar la fracción para obtener:
Answer:
V = 1206.3
Step-by-step explanation:
This shape is made up of a cylinder on the bottom and a cone on the top. We'll find the volumes of these shapes separately and then add them together.
Volume of a cylinder = area (of the base) x height
Substitute in the formula for the area of a circle.
V(cylinder) = x h
Substitute in the values for the radius (8) and height (4)
V(cylinder) = x
x 4
Evaluate using a calculator
V(cylinder) = 804.2477
To the nearest tenth, V(cylinder) = 804.2
Volume of a cone = . This is the area of the circular part of the cone (
), multiplied by the height from the point to the base, all divided by 3.
Substitute in the values for the radius of the circle (8) and the height (6)
V(cone) = (On the top it's
x
x 6)
Evaluate using a calculator
V(cone) = 402.1239
To the nearest tenth, V(cone) = 402.1
Total volume = V(cylinder) + V(cone)
= 804.2 + 402.1
= 1206.3