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Viktor [21]
3 years ago
8

A rectangle is 30 inches long. The diagonal is 50 inches how wide is the rectangle?

Mathematics
2 answers:
Fantom [35]3 years ago
7 0

The answer is 1,500. You have to multiply 30 and 50.

lukranit [14]3 years ago
6 0

Answer:

40

Step-by-step explanation: A rectangle is  a quadralaterial with 4 90 degree angles made up of two diagonals. If we draw one diagonal, it would split the rectangles into two right triangles. Since a rectangle has a right angle, we can use pythagorean theorem to solve the missing side.              

a^{2} +b^{2} =c^{2}   where a and b are the length and widith  and c is the diagonal length. Let plug it in

30^{2} +b^{2} =50^{2}

900+b^{2}=2500

b^{2} =1600

\sqrt{1600 =40

b=40

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x=\tan^{-1} \left(\dfrac 12 \right),  \left[\pi +\tan^{-1} \left( \dfrac 12 \right)\right]\\\\\text{in degrees,}   ~~x=\tan^{-1} \left(\dfrac 12 \right),  \left[180^{\circ} +\tan^{-1} \left( \dfrac 12 \right)\right]\\\\\\\\\text{Combine all solutions:}\\\\x=\dfrac{3\pi}4, \dfrac{7\pi}4, \tan^{-1} \left(\dfrac 12 \right),  \left[\pi +\tan^{-1} \left( \dfrac 12 \right)\right]\\\\\\

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2 years ago
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Therefore, the answer is x + 12.

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adoni [48]

Answer:

The correct option is A:

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Step-by-step explanation:

For a set of N elements {x₁, x₂, ..., xₙ}

The mean is calculated as:

M = \frac{x_1 + x_2 + ... + x_n}{N}

And the mean absolute deviation is calculated as:

MAD = \frac{Ix_1 - MI + Ix_2 - MI + ...+ IX_n - MI}{N}

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{ 2, 2, 3, 4, 4, 5, 6, 6}

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Then the mean standard deviation is:

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If we simplify this, we get:

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