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3 years ago

Using the graph below, select all statements that are true.

Mathematics

1 answer:

Harrizon [31]3 years ago

6 0

Answer:

b and E and c

Step-by-step explanation:

A is false because some elements have the same image like 2.3 and 2.2 , 2.5 ...
B is true because the image of an integer remains the same using the greatest integer function. So C is true
E is true

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alex41 [277]

Answer:

rectangular prism

Step-by-step explanation:

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3 years ago

Explain how Cavalieri’s principle can be used to find the volume of any solid.

Kruka [31]

Answer:

Cavalier's principle can be used to find the volume of any solid.

Step-by-step explanation:

Cavalier's Principle:

Cavalier introduced parallel planes and area to describe the relationship between solids.
Cavalier stated if two solids have the same height and equal areas of the base everywhere along the height then the solids have the same volume.

Suppose two regions are included between two parallel planes.
If every plane parallel to these two planes intersects both regions in cross-sections of equal area, then the two regions have equal volumes.
The formula for the volume of a prism is the area of the base times the height.

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2 years ago

Which is the best estimate for the mass of a pair of eyeglasses? A. 25 grams B. 250 grams C. 25 kilograms D. 250 kilograms

Yuliya22 [10]

About A. 25 grams because glasses are really not heavy at all and the other options are way too illogical.
Hope this helps!

4 0

3 years ago

What would the answer be for this equation 7x/20 - 5x/12

hodyreva [135]

Answer:

$\frac{1}{15} x$

Step-by-step explanation:

$\frac{7x}{20} - \frac{5x}{12}$

$\frac{3 \times 7x}{3 \times 20} - \frac{5 \times 5x}{5 \times 12}$

$\frac{21x}{60} - \frac{25x}{60}$

$\frac{21x - 25x}{60} = (21 - 25)x = - 4x$

$\frac{ - 4x}{60} = - \frac{ x}{15}$

$\boxed{\green{= \frac{1}{15} x}}$

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2 years ago

PLEASE HELP ME im dying again

sergejj [24]

X - distance between Jie and Xiaoqing.

$\dfrac{x}{24\sqrt{5}}=\sin30^\circ\\\\\\\dfrac{x}{24\sqrt{5}}=\dfrac{1}{2}\qquad\qquad\qquad\text{(cross multiply)}\\\\\\2x=24\sqrt{5}\quad|:2\\\\x=12\sqrt{5}\\\\\boxed{x\approx26.83}$

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2 years ago