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3 years ago

Which segment is the line of reflection used in the following transformation?

Mathematics

1 answer:

never [62]3 years ago

3 0

Im sorry I know this is annoying but did you ever get an explanation on an answer?

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Find the total area for the regular pyramid.

hram777 [196]

Answer:

Option B

Step-by-step explanation:

Given is the hexagonal pyramid.

We know the radius of the base is same as its side.

Find the base area:

A = 3√3/2a²
A = 3√3/2*6² = 54√3

Given the height and radius, find the side of the lateral triangular faces:

$\sqrt{8^2+6^2} =\sqrt{100} =10$

Each of 6 triangles have sides 10, 10 and 6 units.

Find the area using heron's formula:

s = P/2 = (10*2 + 6)/2 = 13
s - a = s - b = 13 - 10 = 3
s - c = 13 - 6 = 7
$A = \sqrt{s(s-a)(s-b)(s-c)} =\sqrt{13*3*3*7} =3\sqrt{91}$

Total surface area:

$S = 6*3\sqrt{91}+54\sqrt{3} =18\sqrt{91}+54\sqrt{3}$

Correct choice is B

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2 years ago

What is the simplest form of 8/40?

ehidna [41]

1/5 is the Simples Form

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3 years ago

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.Andrea needs a new air conditioning system for her house. An air conditioner needs to be big enough to cool a house, but it wil

stira [4]

Answer:29,400 ft^3

Step-by-step explanation:

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Find the slope from the given table: х Y -3. 8 0. 7 3. 6

Gelneren [198K]

The answer is plus +3 for slope

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3 years ago

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What can be concluded about the line represented in the table? Check all that apply. x y –6 –7 2 –3 8 0 The slope is 2. The slop

Alborosie

hello!~

i know exactly what your talking about! i just took the test on ed and if you also are or just looking for the answer the answers are..

the second one, the third one, and the fifth one!

have a nice day everyone!!~

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4 years ago

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