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3 years ago

Square root of -25 minus square root of -9 plus square root of -81

Mathematics

1 answer:

yulyashka [42]3 years ago

8 0

Answer:

Positive 11

Step-by-step explanation:

square root of -25 = 5

square root of -9 = 3

square root of -81 =9

Therefore

5 - 3 + 9

2 + 9 = 11

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The height of a cylinder is 8 centimeters. The circumference of the base of the cylinder is 20π centimeters. Which measurement i

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Answer: $2514.28\ cm^3$

Step-by-step explanation:

Given

The height of the cylinder is $h=8\ cm$

Circumference of the base is $20\pi \ cm$

suppose 'r' is the radius of the cylinder

$\Rightarrow 2\pi r=20\pi\\\Rightarrow r=10\ cm$

The volume of a cylinder is $V=\pi r^2h$

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3 years ago

Find the surface area of the tin game case

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To find the surface area you will need to find the area of all 5 surfaces (faces) on the prism. On a triangular prism there are 2 triangular faces and 3 rectangular faces. All 3 rectangular faces are the same and the 2 triangular faces are also the same.

To find the area of the triangular faces, you will use the formula for finding the area of a triangle:

A = 1/2bh
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To find the area of the rectangular faces, you will use the formula for finding the area of a rectangle:

A = bh
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The minimum amount of wrapping paper needed for the gift is 177 square inches.

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Trapezoid W′X′Y′Z′ is the image of trapezoid WXYZ under a dilation through point C.

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3 years ago

Read 2 more answers

What is the mode for the set of data?

ozzi

The mode of given data set is 74. Option D is correct option.

Step-by-step explanation:

We need to find mode of the data set

The data according to key is: 5|0 = 50 years old

So, data will be:

50,54,56,60,62,63,64,68,68,69,70,72,73,74,74,74,78,79,84,85,86,88

Mode is the most repetitive value in the data set.

So, the most repetitive value is 74.

The mode of given data set is 74. Option D is correct option.

Keywords: Mode of Data

Learn more about mode of data at:

#learnwithBrainly

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3 years ago