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3 years ago

What is the value of n in n-2 1/4=1 1/6

1 answer:

5 0

$n-2\frac{ 1}{4}=1 \frac{1}{6} | +2\frac{1}{4}\\ \\n-2\frac{ 1}{4} +2\frac{1}{4}=1 \frac{1} {6}+2\frac{1}{4} \\ \\n=1 \frac{1} {6}+2\frac{1}{4} \\ \\the \ common \ denominator \ is \ 12 \\ \\n=1 \frac{2} {12}+2\frac{3}{12} =3\frac{2+3}{12}=3\frac{5}{12}$

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3 years ago

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Suppose Z denotes the set of all integers, Z denotes the set of all positive integers, and Z− denotes the set of all negative in

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Answer:

a) False

b) False

Step-by-step explanation:

We are given the following information:

Z is a set of all integers, $Z^+$ is a set of all positive integers and $Z^-$ is a set of all negative integers.

Q is a set of all rational numbers, $Q^+$ is a set of all positive rational numbers and $Q^-$ is a set of all negative rational numbers.

N is a set of all natural numbers.

a) False

We will show this with the help of a counter example.

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which is a rational number and not an integer.

b) False

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3 years ago

A wall in a classroom has a length of 16 ft and a diagonal of 20 ft. A student is painting a rectangular mural on the wall. The

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Answer:

B. 4 ft

Step-by-step explanation:

First, find the width of the wall.

The length, width, and diagonal form a right triangle, where the diagonal is the hypotenuse and the length and width are the 2 legs.

Use the pythagorean theorem and solve for a, the width of the wall.

a² + b² = c²

a² + 16² = 20²

a² + 256 = 400

a² = 144

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So, the width of the wall is 12 feet.

Solve for the width of the mural. Again, the diagonal, length, and width form a right triangle.

Use the pythagorean theorem again and solve for a, the width of the mural:

a² + b² = c²

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a² = 64

a = 8

So, the width of the mural is 8 feet.

Now, find the difference between the widths of the wall and mural:

12 - 8

= 4

So, the difference between the two widths is B. 4 ft

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3 years ago

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viktelen [127]

Answer: the answer is B

Step-by-step explanation:

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Answer: B

Step-by-step explanation:

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