All categories

3 years ago

Please I don’t know math

Mathematics

1 answer:

lukranit [14]3 years ago

5 0

Answer:

21%

Step-by-step explanation:

just amount they spend divided by amount they earned

You might be interested in

0.15% of what number is 10.5

lesya692 [45]

The answer is 7000..

7 0

2 years ago

Read 2 more answers

Let X denote the distance (m) that an animal moves from its birth site to the first territorial vacancy it encounters. Suppose t

hammer [34]

Answer:

a) P(X<100)=0.7855

P(X<200)=0.9418

P(100<X<200)=0.1830

b) P(X>M+2σ)=0.0498

c) Median = 48.74 m

Step-by-step explanation:

If the distance X is modeled by an exponential distribution, with parameter λ=0.01422, we have:

The cumulative probability function can be expressed as:

$F(x)=1-e^{-\lambda x}=1-e^{-0.01422 x}$

a) The probability that the distance is at most 100 m is:

$F(100)=1-e^{-0.01422\cdot 100}=1-e^{-1.422}=1-0.2412=0.7588$

The probability that the distance is at most 200 m is:

$F(200)=1-e^{-0.01422\cdot 200}=1-e^{-2.844}=1-0.0582=0.9418$

The probability that the distance is between 100 and 200 m is:

$F(200)-F(100)=0.9418-0.7588=0.1830$

b) The mean is M=1/λ=70.3235 and the standard deviation σ=1/λ=70.3235.

So we have to calculate the probability that X exceeds 2 times the s.d. from the mean:

$x=M+2\sigma=70.3235+2*70.3235=210.97\\\\P(x>210.97)=1-F(210.97)\\\\P(x>210.97)=e^{-0.01422*210.97}=e^{3}=0.0498$

c) The value of the median distance is

$Median=ln(2)/\lambda=0.69314/0.01422=48.74$

7 0

3 years ago

A (10x – 23) 137° b What is the converse?

Rina8888 [55]

Answer:

x=16 alternate interior angles converse

Step-by-step explanation:

6 0

3 years ago

Ryan, Jessica, and Mark each solved this system of equations. All of their answers are different. Find and explain the mistakes.

Stella [2.4K]

It's not possible to do any of that without seeing any of their work.

By the way, that system of equations has no solution.

6 0

3 years ago

Read 2 more answers

HELP PLS LAST ONE Simplify (4y³ – 2y +9) − (2y³ − 3y² + 4y + 7).

Fynjy0 [20]

Simplifed: 2y^3+3y^2−6y+2

3 0

1 year ago