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4 years ago

Choose all TRUE statements.

Mathematics

2 answers:

Artemon [7]4 years ago

8 0

Answer:

See below for answers and explanations

Step-by-step explanation:

First one is false (the cross-section is a circle)

Second one is false (the cross-section is a square)

Third one is true (base shape=cross-section)

Fourth one is false (the cross-section is a circle no matter where you cut it)

Fifth is true (base shape=cross-section

Sixth and final one is true (base shape=cross-section)

podryga [215]4 years ago

3 0

Answer:

3,5, and 6 are correct

Step-by-step explanation:

I just finished the problem

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I need some help finding x.

Andre45 [30]

(8 $x^{3}$ -9)

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4 years ago

What is the height of a pyramid (with a square base) whose side length is 12 cm and its slant

Bingel [31]

We have been given that side length of pyramid the square base is 12 cm and its slant height is 10 cm. We are asked to find the height of the pyramid.

We will use slant height of a pyramid formula to solve our given problem.

$s=\sqrt{h^2+\frac{1}{4}a^2}$ ,where,

s = Slant height,

h = Height,

a = Each side of square base.

Upon substituting our given values in above formula, we will get:

$10=\sqrt{h^2+\frac{1}{4}\cdot 12^2}$

$10=\sqrt{h^2+\frac{1}{4}\cdot 144}$

$10=\sqrt{h^2+36}$

Switch sides:

$\sqrt{h^2+36}=10$

Let us square both sides:

$(\sqrt{h^2+36})^2=10^2$

$h^2+36=100$

$h^2+36-36=100-36$

$h^2=64$

Now we will take positive square root of both sides.

$\sqrt{h^2}=\sqrt{64}$

$h=8$

Therefore, the height of the pyramid is 8 cm and option 'b' is the correct choice.

7 0

3 years ago

The ratio of girls to boys in a swimming club was 2:4 .There were 14 girls .How many total members were there in the club

dusya [7]

Answer:

Step-by-step explanation:

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3 years ago

Find the lateral area of the square pyramid

fredd [130]

Lateral Area, namely the area of its sides, namely excluding its base.

well, the pyramid is standing on one of its triangular faces, so we'll have to exclude that.

now, let's notice, is a square pyramid, so it has an 8x8 square, and it has triangular faces that have a base of 8 and a height of 22.

$\bf \stackrel{\textit{square's area}}{(8\cdot 8)}~~+~~\stackrel{\textit{3 triangular faces' area}}{3\left[ \cfrac{1}{2}(8)(22) \right]}\implies 64+264\implies 328$

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4 years ago

Identify the correct term

Rashid [163]

Answer: inequality

Step-by-step explanation:

An inequality is a sentence that uses the symbols >, <, ≥, ≤, or ≠ to show a relationship. Here are some different inequalities for an example:

6 < 11

7 > 2

12.5 ≠ 13.5

6 0

2 years ago