How many ways can four people (A, B, C, D) sit in a row at a move theater if C and D must sit next to each other?

Mathematics

1 answer:

Novay_Z [31]3 years ago

6 0

Answer:

24 ways in four people.

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PLEASE HELP!

makvit [3.9K]

Answer:

Step-by-step explanation:

diameter = 12 cm

r = 12 ÷ 2 = 6 cm

h = 6 cm

$\sf \boxed{\text{\bf Volume of cone = $\dfrac{1}{3} \pi r^2h$ }}$

$\sf = \dfrac{1}{3}*3.14*6*6*6\\\\ = 226.08 \ cm^3$

To find the surface area, we need to find the slant 'l'

$\sf l = \sqrt{h^2+r^2}\\\\ =\sqrt{6^2+6^2}\\\\ = \sqrt{36+36}\\\\ =\sqrt{72}\\\\= 8.49 \ cm$

$\sf \boxed{\text{\bf Total surface area of cone = $\pi r(r+l)$}}$

= 3.14 * 6 * (6 + 8.49)

= 3.14 * 6 * 14.49

= 273 cm²

8 0

2 years ago

Three fourths of a number p less subtracted by 2 is 5 sixths of a number r plus 5

goldenfox [79]

Three fourths of a number p less subtracted by 2 is 5 sixths of a number r plus 5

3/4 of p subtracted by 2 is 5/6 of a r plus 5

3/4 of p - 2 is 5/6 of r + 5

$\frac{3}{4} p-2= \frac{5}{6} r+5$ <--- answer?

$\frac{3}{4} p= \frac{5}{6} r+7$

$\frac{3p}{4} = \frac{5r}{6} +7$

$\frac{3p}{4}* \frac{6}{5r} = 7$

$\frac{18p}{20r} = 7$

$\frac{9p}{10r} = 7$

$\frac{p}{r} = 7* \frac{10}{9}$

$\frac{p}{r} = \frac{70}{9}$ <-- answer?

Hope this helps

5 0

3 years ago

What is 1/3 ÷ 7/9? Please help.

xxMikexx [17]

Answer:

Step-by-step explanation: 0.43 I think

4 0

3 years ago

Read 2 more answers

(6d^(2)c)/(3c) what is the excluded value

podryga [215]

Answer: