18. What is the area of the trapezoid? A. 112.5 mm2 B. 72 mm C. 40.5 mm2 D. 56.25 mm2​

Answer:

0.0135 = 1.35% probability that, in a random sample of 4 visitors to the website, exactly 2 actually are looking for the website.

Step-by-step explanation:

For each visitor of the website, there are only two possible outcomes. Either they are looking for the website, or they are not. The probability of a customer being looking for the website is independent of other customers. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

5% of all visitors to the website are looking for other websites.

So 100 - 5 = 95% are looking for the website, which means that [tex]p = 0.95[/tex]

Find the probability that, in a random sample of 4 visitors to the website, exactly 2 actually are looking for the website.

This is P(X = 2) when n = 4. So

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = x) = C_{4,2}.(0.95)^{2}.(0.05)^{2} = 0.0135[/tex]

0.0135 = 1.35% probability that, in a random sample of 4 visitors to the website, exactly 2 actually are looking for the website.

Answer:

8.29

Step-by-step explanation:

Cada linea representa ,1

y como es la ultima linea de las 9 antes del 8,3 la respuesta es 8.29

Answer:

Answer: 2pq +7 is the ANS.

Answer:

28.917

Step-by-step explanation:

i multiplied the two numbers

Answer: $120

Step-by-step explanation:

This is fairly easy if you use this solution to solve it

Take the $150 and multiply by 0.8

You multiply by 0.8 because you do

1-0.20 (20% off) to get 0.8

The equation will look like

$150(0.8)=$120

Answer: Please rewrite your question or send a pic.  It is not clear what you are asking.

Step-by-step explanation:

Answer:

3.245L

Step-by-step explanation:

3245÷1000 = 3.245L

Answer:

14cm

Step-by-step explanation:

just so u know all u gotta ddo to findd the diameter is divide it by 3.14 i think

Answer:

you would add a /1 under the 7 so it would be 7/1

Step-by-step explanation:

Answer:

84/12

Step-by-step explanation:

since 7 is a whole, you need to make it a improper fraction so its easier to subtract. We need to do this by making sure the denominator stays the same which is 12.Then do 7x12. you get 84, so 84/12. Then its easier to solve.

Answer:

we will assume a variable X for time which is time between two successive bites and time until next bite.

X = (time between successive mosquito bites) = (time until the next mosquito bite).

According to the Bernoulli process, the bites occur parameter y = (0.5)(0.2) = 0.1.

X is a geometric random variable, so

E[X] = 1/p = 10

and

var(X) = (1 − p)/p^2 = (1 - 0.1)/0.1^2 = 0.9 / 0.01 = 90

Answer:

31/20 is already in the simplest form.

Step-by-step explanation:

It can be written as 1.55 in decimal form (rounded to 6 decimal places).

Answer:

the answer is 6

Step-by-step explanation:

Answer:

You need to the value of the letter "variable."

Step-by-step explanation:

Answer:

Huh? Can I get more details?

Step-by-step explanation:

Answer:

Value of Y = 5√2 units

Step-by-step explanation:

Given:

Perpendicular = X

Base = Y

Hypotenuse = 10

Find:

Value of Y

Computation:

Cos θ = Base / Hypotenuse

Cos 45 = Y / 10

1/√2 = Y / 10

Value of Y = 5√2 units

Answer:

42. 2

6.496

Step-by-step explanation:

Given the data :

21, 12, 3, 9, 11

Variance :

S² = Σ(x - m)² ÷ (n - 1)

n = sample size = 5

m = sample mean = Σx / n

m = (21 + 12 + 3 + 9 + 11) / 5

m = 11. 2

(21-11.2)² + (12 -11.2)² + (3 - 11.2)² + (9-11.2)²

+ (11-11.2)² / (5 - 1)

S² = 42.2

Standard deviation, s = sqrt(42.2) = 6.496

Answer: it might be something like, descending slope, or declining slope, are there answer choices

Answer:

[tex] \boxed{\theta = 40 \degree}[/tex]

Step-by-step explanation:

[tex] \tan( \theta ) = \frac{opp}{adj} = \frac{126}{148} \\ \theta = { \tan}^{ - 1} (0.8513) \\ \theta = 40.4[/tex]

Answer:

10

Step-by-step explanation:

Answer:

Dividing and Subtracting by a negative number will reverse the inequality sign, Addign and Multiplying by a positive number will stay the same. Please tell me if I am wrong.

9514 1404 393

Answer:

  x = 22.5

Step-by-step explanation:

The angle bisector divides the triangle sides proportionally.

  x/30 = 24/32

  x = 30(24/32)

  x = 22.5

Answer:

b. $16.25

...............

Answer:

the first answer is d and the second one is c

Step-by-step explanation:

edge

The height of the tennis ball and the height of the dog's mouth over time are  h = 4.5t + 18 and h = -16t2 + 1.5t + 21 respectively. Therefore, the correct option is option A.

Height is a measurement of vertical distance, or how high or something someone is (how tall they are). For instance, "The altitude of that structure is 50 m" and "The height of such an aircraft in-flight is roughly 10,000 m". Christopher Columbus, for instance, has a height of 5 feet 2 inches.

Height is more frequently referred to as altitude when describing the vertical position from sea level.  Additionally, elevation (height over sea level) is known as altitude if the point is connected to the Earth. The height of the tennis ball and the height of the dog's mouth over time are  h = 4.5t + 18 and h = -16t2 + 1.5t + 21 respectively.

Therefore, the correct option is option A.

To know more about height, here:

https://brainly.com/question/21982748

#SPJ2

First problem:

C

Second:

A

Third:

C

Answer:

D

Step-by-step explanation: