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3 years ago

Which of the following best describes a cylinder?

1 answer:

alexandr1967 [171]3 years ago

5 0

Hey there!

The shape being described in letter A is a prism. A prism has two polygonal shapes on either end that can be any shape consisting of three or more sides. This won't be your answer, since cylinders have circular bases on either side.

The shape being described in letter B is a cylinder. Not sure why they needed to throw in the plane part, but this is the only answer that describes the bases as being circular (or, as they put it, discs).

The shape being described in letter C is a pyramid. If a shape has a polygonal base and meets at a point at the other end, it will be a pyramid. Obviously, a pyramid only has one end, meaning that this isn't your answer.

The shape being described in letter D is a cone. Again, if a shape has a base and meets at a point, it will be a pyramid. However, in the case of a cone, the base will be circular and the other side will meet at a point. The entire shape will be rounded where a pyramid would have edges. Again, not your answer.

Your answer will be B. Hope this helped you out! :-)

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Which of the following is the solution set for the conjunction –6 < 4x + 2 < 6? x>−32 and x<32 x >–2 and x < 1

alisha [4.7K]

$-6$

<em><u>Solution:</u></em>

<em><u>Given conjunction is:</u></em>

$-6$

We have to find the solution set

<em><u>Let us solve the given conjuction</u></em>

$\mathrm{If}\:a$

Therefore,

$-6$

<h3><em><u>Let us first solve -6 < 4x + 2</u></em></h3>

$-6 < 4x + 2$

Switch the sides by flipping the inequality symbol

$4x+2>-6$

$\mathrm{Subtract\:}2\mathrm{\:from\:both\:sides}\\\\4x+2-2>-6-2\\\\\mathrm{Simplify}\\\\4x>-8\\\\\mathrm{Divide\:both\:sides\:by\:}4\\\\\frac{4x}{4}>\frac{-8}{4}$

$x>-2$

<h3><u><em>Now let us solve 4x + 2 < 6</em></u></h3>

$4x+2$

$\mathrm{Combine\:the\:intervals}$

$x>-2\quad \mathrm{and}\quad \:x$

$Merge\:Overlapping\:Intervals$

$-2$

<h3><u>Thus the solution set for –6 < 4x + 2 < 6 is:</u></h3>

$-6$

3 0

2 years ago

There are 5 members of a Math Club. In how many ways can the positions of a secretary, a presidents and treasurer be chosen?

Shkiper50 [21]

Answer:

If you need help, here is some tutors that can help you out!! (This is the website for them):

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Best of luck finding one!!!

3 0

3 years ago

To represent the number of squares after steps, Diego and Jada wrote different equations. Diego wrote the equation f(n)= (n+1) 2

vampirchik [111]

Answer:

Diego is correct

Step-by-step explanation:

5 0

2 years ago

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The sound of a jet engine of a skyhawk jetfighter is 70000 times louder than the sound of a lawnmower if the lawnmower has the l

Amanda [17]

Answer: 6,160,000 db

Step-by-step explanation:

The sound of a jet engine is 70,000 times louder than that of a lawn mower.

Since we know the sound of a lawnmower, we can multiply that by 70,000 to find the sound of a jet engine:

= Sound of lawnmower * 70,000

= 88 * 70,000

= 6,160,000 db

8 0

2 years ago

Please help!!!! I'll give brainlist

Ymorist [56]

Answer:

Hello! answer: y = 122

Step-by-step explanation:

360 - 116 = 244 244 ÷ 2 = 122 therefore y = 122

Hope that helps!

7 0

3 years ago

Read 2 more answers