3 years ago

Find the domain of the graphed function!

Mathematics

1 answer:

ArbitrLikvidat [17]3 years ago

8 0

Answer:

Step-by-step explanation:

you can see that the graph only extends from 2 to 5, and because of the closed circles you know its ≤ not < for the signs

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A police car's siren operates at a frequency of 2,000 Hz. What frequency would a stationary listener observe if the police car i

SpyIntel [72]

we can use formula

$f_L=f_s(\frac{v_a-v_p}{v_a+v_p} )$

where

fL is listener frequency

fs is siren frequency

va is the speed of sound in air

vs is police car speed

so, we have

$f_s=2000Hz$

$v_a=345m/s$

$v_p=65mph$

now, we can change it into m/s

$v_p=65*\frac{1609}{3600}m/s$

$v_p=29.05139m/s$

now, we can plug it

$f_L=2000(\frac{345-29.05139}{345+29.05139} )$

$f_L=1689.33263Hz$ ..............Answer

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2 years ago

A bag contains yellow marbles and blue marbles, 42 in total. The number of yellow marbles is 2 less than 3 times the number of b

Juliette [100K]

There are 31 yellow marbles. Work is attached.

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3 years ago

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Solve the following equation using the quadratic formula.

nataly862011 [7]

Answer:

x=3.5,x=-6

I hope this help

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2 years ago

Simply the fraction <br><br> 21wx<br> 49xy

ddd [48]

$\frac{3w}{7y}$
this is the answer

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3 years ago

Eric rented a truck for one day the base fee was 16.95 for additional charge of .76 cents for each mile driven eric had to pay 1

goldenfox [79]

Answer:

178 miles

Step-by-step explanation:

Let Eric has driven d miles.

As the rate of charge of driving the truck = 76 cents /mile

So, the charge of driving the truck for d miles = 76d cents= $0.76d

The base fee of the truck was $16.95.

Total money paid at the time of returning the truck = $152.23

So, 16.95+0.76d=152.23

0.76d= 152.23-16.95=135.28

d=135.28/0.76

d=178

Hence, he drives 178 miles.

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2 years ago