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4 years ago

PLEASE HELP ASAP OFFERING 20 POINTS TO CORRECT ANSWER

Mathematics

1 answer:

Inessa [10]4 years ago

5 0

Answer:

q(x) = 0.005 (x - 40)∧2 + 70

Step-by-step explanation:

If you mean with "up" that function is translated along the y axis

in that case the correct answer is:

q(x) = 0.005 (x - 40)∧2 + 70

God with you!!!

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If i= -1, what is the value of i3?<br> O-1<br> Ο i <br> O 1<br> O -i

chubhunter [2.5K]

Answer:

I dont think this question is formated correctly. i does not equal to -1. However, If you are wondering about i^-3. it is -i. Otherwords it is D. Hope this helped.

7 0

3 years ago

141/2 write each expression in radical form

saveliy_v [14]

Answer:

70 1/2

Step-by-step explanation:

141/2 can be simplified in 70 1/2 as radical form

8 0

4 years ago

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. The m

marshall27 [118]

Answer:

1. 0.0000454

2. 0.01034

3. 0.0821

4. 0.918

Step-by-step explanation:

Let X be the random variable denoting the number of passengers arriving in a minute. Since the mean arrival rate is given to be 10,

$X \sim Poi(\lambda = 10)$

1. Requires us to compute

$P(X = 0) = e^{-10} \frac{10^0}{0!} = 0.0000454$

2. We need to compute $P(X \leq 3) = P(X =0) + P(X =1) + P(X =2) + P(X =3)$

$P(X =1) = e^{-10} \frac{10^1}{1!} = 0.000454$

$P(X =2) = e^{-10} \frac{10^2}{2!} = 0.00227$

$P(X =3) = e^{-10} \frac{10^3}{3!} = 0.00757$

$P(X \leq 3) =0.0000454+ 0.000454 + 0.00227 + 0.00757 = 0.01034$

3. The expected no. of arrivals in a 15 second period is = $10 \times \frac{1}{4} = 2.5$ . So if Y be the random variable denoting number of passengers arriving in 15 seconds,

$Y \sim Poi(2.5)$

$P(Y=0) = e^{-2.5} \frac{2.5^0}{0!} = 0.0821$

4. Here we use the fact that Y can take values $0,1, \dotsc$ . So, the event that "Y is either 0 or $\geq$ 1" is a sure event ( i.e it has probability 1 ).

$P(Y=0) + P(Y \geq 1) = 1 \implies P(Y \geq 1) = 1 -P(Y=0) = 1 - 0.0821 = 0.918$

3 0

3 years ago

Also this stuff too I need it before my teach put grades in

andrew11 [14]

Answer:

1. Distance is 5 units 2. Distance is 14 units 3. B. (2, -5), 10. (4, 14) 11. (6, 12) 14. x = 12 16. x = 55

Step-by-step explanation:

6 0

3 years ago

Factor 4x^2+81 over the set of complex numbers.

Hunter-Best [27]

$Use:\\\\i=\sqrt{-1}\to i^2=-1\\\\a^2-b^2=(a-b)(a+b)\\--------------------\\\\4x^2+81=2^2x^2+9^2=(2x)^2-(-9^2)=(2x)^2-(-1)(9^2)\\\\=(2x)^2-(i^2)(9^2)=(2x)^2-(9i)^2=\boxed{(2x-9i)(2x+9i)}$

3 0

4 years ago