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valentina_108 [34]
3 years ago
10

A suit case is a rectangular prism whose dimensions are 1 and 1/2 feet by 1 and 3/4 feet by 2 and 1/2 feet. Fond the volume of t

he suitcase. Enter the answer as a mixed number in simplest form.
Mathematics
1 answer:
Andre45 [30]3 years ago
4 0

Answer:

\frac{105}{16} ft^3

Step-by-step explanation:

The suitcase is in the shape of a rectangular prism and we need to find the volume.

The volume of a rectangular prism is given as:

V = L * B * H

where L = length

B = breadth

H = height

The dimensions of the suitcase are 1\frac{1}{2} ft by 1 \frac{3}{4} ft by 2 \frac{1}{2} ft

Therefore, the volume of the suitcase is:

V = 1\frac{1}{2} * 1 \frac{3}{4} * 2 \frac{1}{2} \\\\V = \frac{3}{2} *\frac{7}{4} *\frac{5}{2} \\\\V = \frac{105}{16} ft^3

The volume of the suitcase is \frac{105}{16} ft^3

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convert the polar representation of this complex number into its rectangular form: z=5(cos pi+i sin pi)
Feliz [49]

Answer:

The complex number z = -5 into its rectangular form

Step-by-step explanation:

* Lets revise the complex numbers

- If z = r(cos Ф ± i sin Ф), where r cos Ф is the real part and i r sin Ф is the

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- The value of i = √(-1) ⇒ imaginary number

- Then z = a + bi , where a is the real part and bi is the imaginary part

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∴ a = r cos Ф and b = r sin Ф

* Lets solve the problem

∵ z = r (cos Ф ± i sin Ф)

∵ z = 5 (cos π + i sin π)

∴ The real part is 5 cos π

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∵ The angle of measure π is on the negative part of x axis at the

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∵ x = cos π and y = sin π

∴ cos π = -1  

∴ sin π = 0

∴ a = 5(-1) = -5

∴ b = 5(0) = 0

∴ z = -5 + i (0)

* The complex number z = -5 into its rectangular form

5 0
3 years ago
Read 2 more answers
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