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3 years ago

Find the area of the sector. 20 degrees 6 cm radius

Mathematics

1 answer:

8090 [49]3 years ago

5 0

Answer:

area if sector=20/360 ×πr²=20×π×6²/360

=2πcm²or 6.28cm²

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In the figure, a∥b and m∠6 = 146°.

natka813 [3]

Answer:146

Step-by-step explanation:

took a test :)

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3 years ago

What is the value of x that makes the statement true?<br><br> 9x - 22 = 11x - 54<br><br> x =

storchak [24]

Answer:

Step-by-step explanation:

9x-22=11x-54 take 9x from each side

-22=2x-54 add 54 to each side

32=2x divide by 2

16=x

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3 years ago

Melissa has found that her most recent "third quarter earnings", are 2.4% below last year's earnings, for the same period. If sh

NemiM [27]

x·(1 - 0.024) = 10467 --> x = 10724.39

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3 years ago

A small military base housing 1,000 troops, each of whom is susceptible to a certain virus infection. Assuming that during the c

slava [35]

Answer:

$I=\frac{1000}{exp^{0,806725*t-0.6906755}+1}$

Step-by-step explanation:

The rate of infection is jointly proportional to the number of infected troopers and the number of non-infected ones. It can be expressed as follows:

$\frac{dI}{dt}=a*I*(1000-I)$

Rearranging and integrating

$\frac{dI}{dt}=a*I*(1000-I)\\\\\frac{dI}{I*(1000-I)}=a*dt\\\\\int\frac{dI}{I*(1000-I)}=\int a*dt\\\\-\frac{ln(1000/I-1)}{1000}+C=a*t$

At the initial breakout (t=0) there was one trooper infected (I=1)

$-\frac{ln(1000/1-1)}{1000}+C=0\\\\-0,006906755+C=0\\\\C=0,006906755$

In two days (t=2) there were 5 troopers infected

$-\frac{ln(1000/5-1)}{1000}+0,006906755=a*2\\\\-0,005293305+0,006906755=2*a\\a = 0,00161345 / 2 = 0,000806725$

Rearranging, we can model the number of infected troops (I) as

$-\frac{ln(1000/I-1)}{1000}+0,006906755=0,000806725*t\\\\-\frac{ln(1000/I-1)}{1000}=0,000806725*t-0,006906755\\-ln(1000/I-1)=0,806725*t-0.6906755\\\\\frac{1000}{I}-1=exp^{0,806725*t-0.6906755} \\\\\frac{1000}{I}=exp^{0,806725*t-0.6906755}+1\\\\I=\frac{1000}{exp^{0,806725*t-0.6906755}+1}$

6 0

3 years ago

Two sides of a rectangle are the same length, r. The other two sides are each 4 meters.

exis [7]

Answer:

4 times 4 plus 10

Step-by-step explanation:

there are waaaay more ways than just this there is

( 8 times 2 ) plus ( 5 times 2 )

and

( 5 plus 5 ) plus 16

plz mark me as brainiest

5 0

3 years ago