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3 years ago

65.4 x 2.3 SHOW WORK!!! plz

Mathematics

1 answer:

bagirrra123 [75]3 years ago

6 0

Answer:

Hello so.

65.4 x 2.3 = 150.42

Step-by-step explanation:

The Images I have attached show the work.

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3 years ago

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What value of q makes the equation true? -8=32-5q

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Answer:

Step-by-step explanation:

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3 years ago

Jade used candle molds, as shown, to make candles that were perfect cylinders and spheres:

Fittoniya [83]

Answer:

The difference in the amount of wax needed is 84.78 in³ (84.78 cubic inches)

Step-by-step explanation:

Given

<em>Cylinder</em>

Radius = 3 inches

Height = 7 inches

<em>Sphere</em>

Radius = 3 inches

Required

The difference in the amount of wax needed to make a candle from each of these molds

The quantity or amount required to make a wax of candle from each molds can be calculated by getting the volume of both molds

The volume of a cylinder is calculated using

where r and h are the radius and the height of the cylinder, respectively.

r = 3 in and h = 7 in

The volume of a sphere is calculated using

$V_{2} = \frac{4}{3}\pi r^3$

where r is the radius of the sphere

r = 3 in

Calculating V₁

V₁ = πr²h

V₁ = π * 3² * 7

V₁ = π * 9 * 7

V₁ = π * 63

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Calculating V₂

$V_{2} = \frac{4}{3}\pi r^3$

$V_{2} = \frac{4}{3} * \pi * 3^3$

$V_{2} = \frac{4}{3} * \pi * 27$

$V_{2} = \frac{108}{3} * \pi$

V₂ = 36π

Having calculated the volume of each molds, the difference in the amount of wax needed can then be calculated.

Difference = V₁ - V₂

Substituting 63π for V₁ and 36π for V₂

Difference = 63π - 36π

Difference = 27π

<em>(Taking π = 3.14)</em>

Difference = 27 * 3.14

Difference = 84.78

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