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2 years ago

Which pair of angles are vertical angles?

Mathematics

1 answer:

Triss [41]2 years ago

7 0

Answer:

RQW and TQU

Step-by-step explanation:

That image I posted explains it way better than I could. The only angles listed that fit the criteria are RQW and TQU.

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I WILL GIVE BRAINLIEST<br> x^2−2.2x+1.21>0

Margarita [4]

Answer:

x<1.1 or x>1.1

Step-by-step explanation:

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3 years ago

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Point H is the incenter of triangle ABC. Find angle HAC.

Rashid [163]

Let angle HAC = A, then
cos A = 24/25 = 0.96
A = cos^-1(0.96) = 16.26

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4 years ago

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2+2(-3)(7) is the answer negative?

Gwar [14]

Answer: -40 so therefore the answer is negative

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3 years ago

What’s 6 x 5 * divide* 10? I need answers plz

Reika [66]

Answer:

It is 3

Step-by-step explanation:

6*5= 30

30/10= 3

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3 years ago

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Customers arrive at a bank drive-up window every 6 minutes based on a Poisson distribution. Once they arrive at the teller, serv

Jet001 [13]

Answer:

(a) 0.01029 (b) 4.167 customers (c) 0.4167 hours or 25 minutes (d) 0.5 hours or 30 minutes

Step-by-step explanation:

With an arrival time of 6 minutes, λ=10 clients/hour.

With a service time of 5 minutes per transaction, μ=12 transactions/hour.

(a) The probability of 3 or fewer customers arriving in one hour is

P(C<=3)=P(1)+P(2)+P(3)

$P(X)=\lambda^{X}*e^{-\lambda} /X!$

$P(1)=10^{1}*e^{-10} /1!=0.00045\\P(3)=10^{3}*e^{-10} /3!=0,00227\\P(2)=10^{2}*e^{-10} /2!=0,00757\\P(x\leq3)=0.00045+0.00227+0.00757 = 0.01029$

(b) The average number of customers waiting at any point in time (Lq) can be calculated as

$L_{q}=p*L=\frac{\lambda}{\mu}*\frac{\lambda}{\mu-\lambda}\\L_{q}=\frac{10}{12}*\frac{10}{12-10}\\\\L_{q}=100/24=4.167$

$W_{q}=p*W=\frac{\lambda}{\mu}*\frac{1}{\mu-\lambda}\\W_{q}=(10/12)*(1/(12-10))\\W_{q}=(10/24)=0.4167$

(d) The average time in the system (W), waiting and service, can be calculated as

$W=\frac{1}{\mu-\lambda}\\W=\frac{1}{12-10}=0.5$

6 0

3 years ago