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Tanzania [10]
3 years ago
8

How many square inches of paper did Benjamin use to wrap the box

Mathematics
1 answer:
ozzi3 years ago
7 0

Answer:

2,124\ in^{2}

Step-by-step explanation:

we know that

The surface area of a rectangular prism is equal to

SA=2B+Ph

where

B is the area of the base

P is the perimeter of the base

h is the height

In this problem we have

B=18*24=432\ in^{2}

P=2(18+24)=84\ in

h=15\ in

substitute

SA=2(432)+(84)(15)=2,124\ in^{2}

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IrinaVladis [17]

Answer:

(a) A = {... -23, -16, -9, -2, 5, 12, 19, 26, ....}

(b) A = {x\in Z: x = 5 - 7t,\ t\in Z}

Solution:

For two integers x and y to be congruent, we know that:

If 't' divides y - x, we say that x is congruent to y modulo t, written x ≡ y mod t.

Now,

In roster form, we include each element in the representation of the set.

In set-builder form, we use mathematical notation and properties of the elements of the set.

Now,

As per the question;

(a) To represent all the integers congruent to  5 (mod 7) by roaster method of a set A (say):

where

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x ≡ 5 (mod 7)

Then

A = {... -23, -16, -9, -2, 5, 12, 19, 26, ....}

(b) In set builder form,

A = {x\in Z: x = 5 - 7t,\ t\in Z}

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3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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