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3 years ago

. The larger number is 19 more than the smaller number. What are the numbers?

Mathematics

1 answer:

AnnyKZ [126]3 years ago

4 0

Answer:

x and x+19

Step-by-step explanation:

if this is not the right answer i think that you are leaving out the beginning part of the question

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Determine the point of intersection of the lines y = - 5/2 x and y = -x + 3 by graphing.

jeka94

Answer:

intersection point (-2,5)

Step-by-step explanation:

the line y = - 5 / 2 x you do the reciprocal which gets you x = -2 y = 5

5 0

3 years ago

20 POINTS !! IF YOU ANSWER THE QUESTIONS !

tatuchka [14]

12 the answer is 12 I know it

6 0

3 years ago

Customers arrivals at a checkout counter in a department store per hour have a Poisson distribution with parameter λ = 7. Calcul

IgorLugansk [536]

Answer:

(1)14.9% (2) 2.96% (3) 97.04%

Step-by-step explanation:

Formula for Poisson distribution: $P(k) = \frac{\lambda^ke^{-k}}{k!}$ where k is a number of guests coming in at a particular hour period.

(1) We can substitute k = 7 and $\lambda = 7$ into the formula:

$P(k=7) = \frac{7^7e^{-7}}{7!}$

$P(k=7) = \frac{823543*0.000911882}{5040} = 0.149 = 14.9\%$

(2)To calculate the probability of maximum 2 customers, we can add up the probability of 0, 1, and 2 customers coming in at a random hours

$P(k\leq2) = P(k=0)+P(k=1)+P(k=2)$

$P(k\leq2) = \frac{7^0e^{-7}}{0!} + \frac{7^1e^{-7}}{1!} + \frac{7^2e^{-7}}{2!}$

$P(k \leq 2) = \frac{0.000911882}{1} + \frac{7*0.000911882}{1} + \frac{49*0.000911882}{2}$

$P(k\leq2) = 0.000911882+0.006383174+0.022341108 \approx 0.0296=2.96\%$

(3) The probability of having at least 3 customers arriving at a random hour would be the probability of having more than 2 customers, which is the invert of probability of having no more than 2 customers. Therefore:

$P(k\geq 3) = P(k>2) = 1 - P(k\leq2) = 1 - 0.0296 = 0.9704 = 97.04\%$

4 0

2 years ago

Which expression is not equivalent to the other expressions?

Ket [755]

That would be D

the first 3 = -12x + 24

bur D = -12x - 24

4 0

3 years ago

Read 2 more answers

a line with a slope of 3 passes through the point (2,5) write an equation for this line in point-slope form.

Bingel [31]

Answer:

Point Slope: y - 5 = 3 (x-2)

Slope Intercept : y=3x-1

Step-by-step explanation:

1.) y - 5= 3(x-2)

2.) y - 5 = 3x-6

3.) y=3x-1

4 0

3 years ago