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

1 answer:

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 40,320 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:

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

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4 years ago

Principal: $2600 Rate: 3% Time: 3 years What is the interest made?

Marianna [84]

Answer:

$234

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 3%/100 = 0.03 per year,

then, solving our equation

I = 2600 × 0.03 × 3 = 234

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

1. If mPCV = 42, then mZVCN =

zalisa [80]

Answer:

Easy lol mzvcn=48

Step-by-step explanation:

7 0

3 years ago

Help me please !!!!!

Nata [24]

1. Yes because the vertical line intersects the graph in one or less points.
2. No because the inputs repeat (4).

6 0

3 years ago

If you flip two coins 24 times, what is the best prediction possible for the number of times

g100num [7]

Yes it is 8!!!!!!!!!!!!!

3 0

3 years ago