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hoa [83]
3 years ago
5

That base of a square pyramid has side lengths of 9 inches. The height of the pyramid is 21 inches. What is the Volume of the py

ramid?
Mathematics
1 answer:
Paha777 [63]3 years ago
8 0

Answer:

what is the base width ? the formula is : l x w x h /3

Step-by-step explanation:


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Simplify 8 + 2(10 – r). 
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8+20-2r which is equal to 28-2r so it is (B)
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All together, Dion and trevor worked a total of 38 hours last week. If Dion worked d hours, which expression represent the numbe
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3 years ago
Figure
ludmilkaskok [199]

Answer:

  • a rotation, followed by a translation
  • a translation, followed by two reflections

Step-by-step explanation:

The rigid motions are the transformations that produce congruent images.

There are three main kinds of rigid motions  :

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  • Rotations : Rotates a figure about some degrees around a center point.
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But dilation is not a rigid transformation because it may change the size of the image. It is usually used to shrink or enlarge a shape.

So, the options having dilation and term "stretch" cannot produce congruent figures.

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5 0
3 years ago
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Lerok [7]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
Find the 21st term in the arithmetic sequence.<br> 3, 7, 11, 15, 19, ...
NNADVOKAT [17]

The 21st term of the given arithmetic sequence is 83. The nth term of an arithmetic sequence is applied to find the required value where n = 21.

<h3>What is the nth term of an arithmetic series?</h3>

The nth term of an arithmetic sequence is calculated by the formula

aₙ = a + (n - 1) · d

Here the first term is 'a' and the common difference is 'd'.

<h3>Calculation:</h3>

The given sequence is an arithmetic sequence.

3, 7, 11, 15, 19, ....

So, the first term in the sequence is a = 3 and the common difference between the terms of the given sequence is d = 7 - 3 = 4.

Thus, the required 21st term in the sequence is

a₂₁ = 3 + (21 - 1) × 4

⇒ a₂₁ = 3 + 20 × 4

⇒ a₂₁  = 3 + 80

∴ a₂₁  = 83

So, the 21st term in the given arithmetic sequence is 83.

Learn more about the arithmetic sequence here:

brainly.com/question/6561461

#SPJ1

5 0
1 year ago
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