3 years ago

How many planes of symmetry does a rectangular pyramid has?

Mathematics

1 answer:

Tju [1.3M]3 years ago

6 0

Answer:

Step-by-step explanation:

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Just wondering If I'm am doing this correctly. Would like a in depth explanation 7/100 = 3.5/n

yaroslaw [1]

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Step-by-step explanation:

7/100 = 3.5/n

The fastest way to do this you can set up proportions.

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n=350/7

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Evaluate the following expressions.<br> a. 9!/8!<br> b. 7!/5!<br> c. 21!/19!<br> d. 8!/4!

Nata [24]

Answer:

Remember, $n!=1*2*3*\cdots*n$ , then

$\frac{9!}{8!}=\frac{1*2*3*4*5*6*7*8*9}{1*2*3*4*5*6*7*8}=9$

$\frac{7!}{5!}=\frac{1*2*3*4*5*6*7}{1*2*3*4*5}=6*7=42$

$\frac{21!}{19!}=\frac{1*2*\cdots*19*20*21}{1*2*\cdots*19}=20*21=420$

$\frac{8!}{4!}=\frac{1*2*3*4*5*6*7*8}{1*2*3*4}=5*6*7*8=1680$

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3 years ago

Evaluate each expression for the given value of each variable.

nexus9112 [7]

Answer:

Step-by-step explanation:

10 * 4 + 6 ^ 2 = 40 + 36 = 76

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3 years ago

How many planes of symmetry does a rectangular pyramid has?​

How many planes of symmetry does a rectangular pyramid has?