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3 years ago

Find the shape resulting from the cross section of the cylinder

Mathematics

1 answer:

Lesechka [4]3 years ago

4 0

Answer: Second option.

Step-by-step explanation:

For this exercise it is important to remember that, by definition, a "Cross section" is the two-dimensional shape obtained by the intersection of a three-dimensional body with a plane.

In this case you can observe in the figure given in the exercise, that the the cylinder (which is the three dimensional body) is sliced perpendicular to its base.

By definition , when a plane intersects a cylinder perpendicular to its base, the resulting shape obtained is a Rectangle.

A Rectangle is defined as a quadrilateral whose opposite sides are parallel and have equal lengt. And each angle measures 90 degrees (Angles that measure 90 degrees are also called "Right angles").

To see this better, you can see the picture attached.

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Find the missing side of this right<br> triangle.<br> 19<br> X<br> X =<br> 16<br> ✓[?]

julia-pushkina [17]

Answer:

x = sqrt(105)

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

16^2 + x^2 = 19^2

256 + x^2 = 361

x^2 = 361 -256

x^2 =105

Take the square root of each side

sqrt(x^2) = sqrt(105)

x = sqrt(105)

8 0

2 years ago

The probability that a randomly selected student is a girl is 0.52, and the probability that a student is a girl and in an art c

DaniilM [7]

Answer: The answer is 0.38

Step-by-step explanation:

Well, everything is given, as stated in the question "the probability that a student is a girl and in an art class is 0.20."

It's given that the probability that a student is a girl is 0.52.

However, in the question, it said that it's given a student is a girl.

You have the probability that a student is a girl and in art class, so you need to find what 0.52 was multiplied by which would be the probability of someone being in art class. Knowing this you can do 0.20 / 0.52 to get 0.38.

4 0

2 years ago

981 rounded to nearest 100

sergey [27]

Answer: 1000

Step-by-step explanation:

9 8 1

Hundred tens one

The question is asking for to round to the nearest hundred (100) which means is rounding to [9] in this question.

The number of the place before the hundreds place is [8] on the tens place.

When numbers are greater than or equal to 5, you round up a digit.
When numbers are less than 5, you round down a digit.

[8] is greater than 5, so you round 9 up. When rounding 9 up, you get 10.

<h2>So, the final number will be 1000</h2>

6 0

3 years ago

Can someone explain how to solve the table of values?

11Alexandr11 [23.1K]

Answer:

By putting some values of x find the y values

Step-by-step explanation:

for example, let x=-1 and x=2y

then -1=2y

y=-1/2

I hope it helps

8 0

3 years ago

A shop has a sale of

maw [93]

Answer:

19.80

Step-by-step explanation:

use the is/of x %/100 method.

33/100 x x/60

1980/100x = 19.80$

5 0

2 years ago