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3 years ago

A cone is sliced so the cross section is parallel to its base.

Mathematics

2 answers:

julsineya [31]3 years ago

8 0

Answer:

Option 1 - Triangle

Step-by-step explanation:

Given : A cone is sliced so the cross section is parallel to its base.

To find : What is the shape of the cross section?

Solution :

When a cone is cut in such a way that the cross-section is perpendicular to the base and it passes through the vertex.

The shape of cross section formed is a triangle.

Refer the attached figure below.

The figure thus formed after cutting is in the shape of a triangle.

Therefore, Option 1 is correct.

Alika [10]3 years ago

3 0

The shape of the cross-section formed is a triangle, when a cone is cut in such a way that the cross-section is perpendicular to the base and it passes through the vertex.

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HELP WITH NUMBER 13 please

amid [387]

Answer: QE = 10

Step-by-step explanation: To solve this problem, it's important to understand that the diagonals of a parallelogram bisect each other.

This means that E is the midpoint of diagonal SQ.

So we can setup the equation x² + 9x = 4x + 6.

To solve this polynomial equation, set it equal to zero first.

So we have x² + 5x - 6 = 0 and we get (x + 6)(x - 1) = 0

when we factor the left side of the equation.

So this means that x = -6 or x = 1.

However, -6 will give us a negative length when we plug it in

to find QE so this will not work.

However, plugging 1 in will give us 10 as a length so QE = 10.

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2 years ago

Two groups of students were asked how far they lived from their school. The table below shows the distances in miles:

pychu [463]

Answer:

C. The value for Group A is double the value for Group B

Step-by-step explanation:

First, you add all the numbers from each group.

A: The distance in total is 39.06

B: The distance in total is 19.53

To find the mean, which is another way of saying the average, you divide the sum with how many numbers there are. (hope this makes sense, I suck at wording)

A: There are 9 numbers in total, hence, 39.06/9 = 4.34

B: There are 9 numbers in total, hence, 19.53/9 = 2.17

Those are the mean distance for the two groups.

2.17 * 2 = 4.34

Hence, C (third statement)

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3 years ago

Read 2 more answers

-12 + 2a = -6(1 + a) + 8a

valkas [14]

-12 + 2a = -6 (1+a)?
Answer is 0 = 6

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