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3 years ago

Find a polynomial function with real coefficients that has zeros-3, 2i

Mathematics

1 answer:

Jlenok [28]3 years ago

8 0

Check google it might have it

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What is the probability that a randomly selected person surveyed has a job, given that the person is less than 18 years old? Exp

weeeeeb [17]

When the person is less than 18 years old, out of 265 persons, 20 has job and 245 do not have job.

The probability is defined as $\frac{no\;of \; favourable \;outcomes}{total\;number\;of\;outcomes}$ .

Consider the first column only.

The probability that a randomly selected person surveyed has job is

$\frac{20}{20+245} =0.0755$

5 0

3 years ago

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A woman rides a bicycle for 1 hour and travels 12 kilometers. Find the angular velocity of the wheel if the radius

Korolek [52]

14.81 radians/second

Step-by-step explanation:

3 0

2 years ago

Help and please show work!

Wewaii [24]

Answer:

666 2/3 gallons per minute

Step-by-step explanation:

1 valve: 40,000 wps

60 seconds in 1 minute,

40,000 / 60 = 666 2/3

3 0

2 years ago

A robot can complete up to 8 tasks in 5/6 hour. each task takes the same amount of time.

storchak [24]

$\bf \begin{array}{ccll} tasks&hours\\ \cline{1-2}&\\ 8&\frac{5}{6}\\\\ 1&h \end{array}\implies \cfrac{8}{1}=\cfrac{~~\frac{5}{6}~~}{h}\implies 8=\cfrac{~~\frac{5}{6}~~}{\frac{h}{1}}\implies 8=\cfrac{5}{6}\cdot \cfrac{1}{h} \\\\\\ 8=\cfrac{5}{6h}\implies 48h=5\implies h=\cfrac{5}{48}\\\\[-0.35em] \rule{31em}{0.25pt}$

$\bf \begin{array}{ccll} tasks&hours\\ \cline{1-2}&\\ 8&\frac{5}{6}\\\\ t&1 \end{array}\implies \cfrac{8}{t}=\cfrac{~~\frac{5}{6}~~}{1}\implies \cfrac{8}{t}=\cfrac{5}{6}\implies 48=5t \\\\\\ \cfrac{48}{5}=t\implies 9\frac{3}{5}=t$

7 0

3 years ago

Read 2 more answers

a city has a population of 340,000 people suppose each year the population grows by 7% what will rhe population be after 12 year

NemiM [27]

So this is going to be an exponential equation, which the format is $y=ab^x$ , in which a is the initial value and b is the growth/decay rate.

In this case, a is going to be 340,000 and b is going to be 107%, or 1.07, since the population is going to be increasing by 7% and the equation is now $y=340000(1.07)^x$ .

Now replace x with 12 and solve.

$y=340000(1.07)^{12}$

Solve $1.07^{12}$ , and then if you don't round that answer and multiply it with 340000 you get $y=765745$ .

6 0

3 years ago