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kherson [118]
3 years ago
9

How many different ways could eight students sit in a semicircle to watch an experiment?

Mathematics
1 answer:
beks73 [17]3 years ago
3 0
To answer this you need to do the factorial for 8 which is 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 and you'll get the number of combinations that is<span> 40,320</span> because that's the possible number of combinations.

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Which expression is equivalent to (4+3i)^2+(6-I)^2
zhenek [66]

Answer:

\large\boxed{(4+3i)^2+(6-i)^2=42+12i}

Step-by-step explanation:

(4+3i)^2+(6-i)^2\qquad\text{use}\ (a\pm b)^2=a^2\pm2ab+b^2\\\\=4^2+2(4)(3i)+(3i)^2+6^2-2(6)(i)+i^2\\\\=16+24i+9i^2+36-12i+i^2\qquad i=\sqrt{-1}\to i^2=-1\\\\=16+24i+9(-1)+36-12i+(-1)\\\\=16+24i-9+36-12i-1\qquad\text{combine like terms}\\\\=(16-9+36-1)+(24i-12i)\\\\=42+12i

8 0
4 years ago
Principal: $2600<br> Rate: 3%<br> Time: 3 years<br> What is the interest made?
Marianna [84]

Answer:

$234

Step-by-step explanation:

First, converting R percent to r a decimal

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then, solving our equation

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I = $ 234.00

The simple interest accumulated

on a principal of $ 2,600.00

at a rate of 3% per year

for 3 years is $ 234.00.

4 0
3 years ago
Read 2 more answers
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zalisa [80]

Answer:

Easy lol mzvcn=48

Step-by-step explanation:

7 0
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Help me please !!!!!
Nata [24]
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