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3 years ago

2.3.4 practice modeling graphs of functions

Mathematics

1 answer:

skad [1K]3 years ago

5 0

Answer: 29?

sorry ask clloyd

Step-by-step explanation:

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What is 2A- 3B, if A =<br> 12-13].and-[ -4 -2]

Liono4ka [1.6K]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A roof has the shape of an isosceles triangle with equal sides 8 cm long and base 12 m long. What is the measure of the angle of

victus00 [196]

Answer:

41 degrees to the nearest degree.

Step-by-step explanation:

A line drawn from the vertex and bisecting the base forms 2 right triangles.

The base of one right triangle = 1/2 * 12 = 6 m.

So cos A = adjacent side /hypotenuse where A is the angle of inclination.

cos A= 6 / 8 = 0.75

m < A = 41.41 degrees.

7 0

3 years ago

A smog alert has been called in a certain area of Los Angeles County in which there are 50 industrial rms. An inspector will vis

damaskus [11]

Answer:

Part (A) The required PMF is: $P(X=x)=\frac{\binom{15}{x}\binom{50-15}{10-x}}{\binom{50}{10}}$

Part (B) $B(x;n,p)=\binom{10}{x}(0.3)^x(1-0.3)^{10-x}$

Step-by-step explanation:

Consider the provided information.

There are 50 industrial rms. An inspector will visit 10 randomly selected rms to check for violations of regulations.

Part (A)

15 of the rms are actually violating at least one regulation.

Let X is the number of firms violate at least one regulation from 10 randomly selected rms to check for violations of regulations out of 50 firms of which 15 5 of the rms are actually violating.

Therefore, $X\sim Hypergeom(n=10, M=15\ and\ N=50)$

We need to determine probability mass function.

$P(X=x)=Hyper(x; n=10, M=15, N=50)\\=\frac{\binom{15}{x}\binom{50-15}{10-x}}{\binom{50}{10}}$

Hence, the required PMF is: $P(X=x)=\frac{\binom{15}{x}\binom{50-15}{10-x}}{\binom{50}{10}}$

Part (B) If there are 500 rms in the area, of which 150 are in violation, approximate the pmf of part.

Here N=500 so find the probability of p as shown below:

$p=\frac{150}{500} =0.3$ and n=10

$B(x;n,p)=B(x;10,0.3)\\=\binom{10}{x}(0.3)^x(1-0.3)^{10-x}$

5 0

4 years ago

Please help me answer this (and show steps)<br><br> thank you!

alexira [117]

Answer:

it's easy hope I could help

Step-by-step explanation:

the -3 goes on the y line

4/3 goes on the positive side so on the y and x

8 0

3 years ago

What is the value of this expression?

solmaris [256]

$\frac{11}{12}-\frac{1}{3} +\frac{2}{6} = \frac{11}{12}-\frac{1}{3} +\frac{1}{3} =\frac{11}{12}$

Answer: 11/12

Ok done. Thank to me :>

4 0

2 years ago