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3 years ago

10

what is the circumference of a circle if the radius of the circle is 2.2 in terms of pi? a) 1.1 pi b) 1.21 pi c) 2.2 pi d) 4.4 p

i

1 answer:

Darya [45]3 years ago

7 0

Cicumference = Dπ or 2rπ

thus if r = 2.2
then C = 2 (2.2)π
= 4.4π

D is the answer

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Kryger [21]

$\int 3^{\tfrac{x}{2}}\, dx=(*)\\
t=\dfrac{x}{2}\\
dt=\dfrac{x}{2}\, dx\\
dx=2\, dt\\
(*)=\int 3^t\cdot2\, dt=\\
2\int 3^t \, dt=\\
2\cdot\dfrac{3^t}{\ln 3}+C=\\
\boxed{\dfrac{2\cdot3^{\tfrac{x}{2}}}{\ln 3}+C}
$

7 0

3 years ago

Read 2 more answers

NEED ANSWERS HELP PLEASE

vovikov84 [41]

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3 years ago

Two sides of a trapezoidal are 25 meters. The third side is 40 meters. The fourth side is 20 meters shorter than the longest sid

Aloiza [94]

Answer:

110

Step-by-step explanation:

longest side would by 40 so 40 - 20 = 20. Add all the sides up 25+25+40+20=110

3 0

3 years ago

The cylindrical container shown below can be completely filled with 24 litres of water. The base area of the container is 600 cm

Virty [35]

Answer:

40cm

Step-by-step explanation:

volume of a cylinder= πr²h

V=24litres, Area=πr²=600cm², height=?

converting litres to cm³

1litre=1000cm³

24litres= 24×1000

=24000cm³

24000=600× h

h= 24000/600

= 40cm

5 0

2 years ago

For the data set 2.5, 6.5, 9, 19, 20, 2.5. What is the mean?

Ahat [919]

Answer:

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Step-by-step explanation:

All of the numbers equal 59.5 then divide by 6 equals the answer above.

3 0

2 years ago