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3 years ago

Solve this Question is down below

Mathematics

2 answers:

zhenek [66]3 years ago

6 0

1 is the answer
2020020202

-Dominant- [34]3 years ago

6 0

6/2(1+2)
6/2+4
6/6
1
there

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Take the digits 4,5,6,7,8and9.make any three numbers each with 8digits

Anna [14]

So we can use the following digits: 4,5,6,7,8,9

and we need three numbers with 8 digits each. Here are some examples:
1)
45 678 999 (you can also write 45,678,999 for easier reading)

2) 44 456 789 (you can also write 44,456,789 for easier reading)

3)45 678 456 (or 45,678,456)

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3 years ago

What is the product?<br> (3x-5)(22-7x+1)

Gelneren [198K]

answer

1. expand the equation

3x(22-7x+1)-5(22-7x+1)

66x-21x²+3x-110+35x-5

104x-21x²-115

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2 years ago

3. Jack buys a bicycle on sale for $59.

Semmy [17]

Answer:

One 50$, one 5$, and four 1$ bills

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3 years ago

Read 2 more answers

The manager wants to advertise that anybody who isn't served within a certain number of minutes gets a free hamburger. But she d

aksik [14]

Answer:

The number of minutes advertisement should use is found.

x ≅ 12 mins

Step-by-step explanation:

(MISSING PART OF THE QUESTION: AVERAGE WAITING TIME = 2.5 MINUTES)

For such problems, we can use probability density function, in which probability is found out by taking integral of a function across an interval.

Probability Density Function is given by:

$f(t)=\left \{ {{0 ,\-t$

Consider the second function:

$f(t)=\frac{e^{-t/\mu}}{\mu}\\$

Where Average waiting time = μ = 2.5

The function f(t) becomes

$f(t)=0.4e^{-0.4t}$

The manager wants to give free hamburgers to only 1% of her costumers, which means that probability of a costumer getting a free hamburger is 0.01

The probability that a costumer has to wait for more than x minutes is:

$\int\limits^\infty_x {f(t)} \, dt= \int\limits^\infty_x {}0.4e^{-0.4t}dt$

which is equal to 0.01

Solve the equation for x

$\int\limits^{\infty}_x {0.4e^{-0.4t}} \, dt =0.01\\\\\frac{0.4e^{-0.4t}}{-0.4}=0.01\\\\-e^{-0.4t} |^\infty_x =0.01\\\\e^{-0.4x}=0.01$

Take natural log on both sides

$ln (e^{-0.4x})=ln(0.01)\\-0.4x=ln(0.01)\\-0.4x=-4.61\\x= 11.53$

<h3>Results</h3>

The costumer has to wait x = 11.53 mins ≅ 12 mins to get a free hamburger

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3 years ago

NEED HELP ASAP<br> Solve the equation or inequality for the unknown number. Show your work.

amid [387]

Answer:

Step-by-step explanation:

3(14+x) = 57

42 +3x = 57

3x = 15

x = 5

6 0

3 years ago