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3 years ago

*** PLEASE HELP IM TIMED

Mathematics

2 answers:

mart [117]3 years ago

5 0

The first one because it’s the actual formula for a sphere and it has pie at the end because we are solving for a sphere

pychu [463]3 years ago

5 0

Archimedes solved this in his famous book <em>Sphere and Cylinder</em> in 225 BC. The result is reportedly on his tombstone.

The ratio of the volume of the radius r sphere to the cylinder radius r, height 2r is

$\dfrac 2 3$

The same ratio is the ratio of the surface area of the sphere to that of the cylinder (including the ends).

Answer: Last choice

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Which of the statements are true regarding dot plots bar graphs and historgrams

andrey2020 [161]

the only statement that is true is the one in option D.

"Bar graphs are used to represent data that is discrete".

<h3>Which of the statements are true regarding dot plots, bar graphs, and histograms?</h3>

Dot plots, bar graphs, and histograms are used to repersent graphically data sets.

Thus, what these graphs do represent are populations in a data set with a given property.

Remember that data is usually discrete, so we usually use dot plots and bar graphs to represent discrete data.

Histograms show distributions of numerical data (it can be used for continuous or discrete data).

With all that in mind, we conclude that the only statement that is true is the one in option D.

"Bar graphs are used to represent data that is discrete".

If you want to learn more about data sets:

brainly.com/question/3514929

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3 0

1 year ago

If f(x) = 2x – 6 find f(7) - 9. *

evablogger [386]

Answer:

-1

Step-by-step explanation:

Plug 7 in for wherever there's an "x."

f(x) = 2(7) - 6

f(x) = 14 - 6

f(x) = 8

Now subtract 9 from 8.

8 - 9 = -1

6 0

3 years ago

What is 3c-9d+7c+5d simplified

Morgarella [4.7K]

Answer:

3c-9d+7c+5d becomes this when it is simplified 10c - 4d

Step-by-step explanation:

8 0

2 years ago

-10.2+c=-8.14<br> Helpppp

Oksanka [162]

Answer:

c=18.34

Step-by-step explanation:

6 0

3 years ago

2. Samuel used clay to make a diorama of the pyramids in Ancient Egypt. He made two triangular pyramids and three rectangular py

zalisa [80]

Answer:

$124.16$ cubic meter of clay will be used to create all the pyramids

Step-by-step explanation:

The remaining part of the question is given in the attached file

Solution

The total clay used is equal to the sum of volumes of two triangular and three rectangular pyramids.

For Rectangular Pyramid,

Volume of three rectangular pyramids

$3 * \frac{BH}{3} = BH$

Substituting the given values in above equation, we get -

$15.5 * 5 = 77.5$ cubic centimeter

For triangular Pyramid,

Volume of two triangular pyramids

$2 * \frac{BH}{3}\\2 * \frac{10 * 7}{3}$

$46.67$ cubic centimeter

Total clay used = Volume of 3 rectangular pyramid + volume of 2 triangular pyramid $= 77.7 + 46.67 = 124.16$ Cubic centimeter

5 0

2 years ago