HELP ME I NEED HELP, I DON'T KNOW WHAT TO DO

These are a legitimate probability distribution:

To have a legitimate probability distribution, the probabilities for all possible values of X must satisfy two conditions:

Each probability value must be between 0 and 1, inclusive.

The sum of all probability values must equal 1.

Check if the given probabilities satisfy these conditions:

P(X=-3) = 0.14 (valid)

P(X=1) = 0.1 (valid)

P(X=3) = 0.135 (valid)

P(X=5) = 0.306 (valid)

Now, calculate the remaining probability to check if it satisfies the second condition:

P(X=6) = 1 - (P(X=-3) + P(X=1) + P(X=3) + P(X=5))

P(X=6) = 1 - (0.14 + 0.1 + 0.135 + 0.306)

P(X=6) = 1 - 0.681

P(X=6) = 0.319

Since the calculated probability is valid (between 0 and 1), There is a legitimate probability distribution for the discrete random variable X:

P(X=-3) = 0.14

P(X=1) = 0.1

P(X=3) = 0.135

P(X=5) = 0.306

P(X=6) = 0.319

Find out more on probability distribution here: https://brainly.com/question/30390163

#SPJ1

Answer:

Hope this helps pls mark me Branliest

Step-by-step explanation:

that's my answer

Answer: 8squares

Step-by-step explanation:

Answer:

the inequality y ≥ 0.8x + 1.5 accurately describes the relation between the duration of the hike (x) and the amount of water needed (y). This inequality means that for any duration of the hike (x), the amount of water needed (y) must be greater than or equal to 0.8x + 1.5.

Answer:

Step-by-step explanation:

3 liters of water for 4 hours of hiking.

Answer:

b=-1

Explanation:

Given the linear equation

The y-intercept of the function is the value of y when x=0

The y-intercept of the linear function is -1.

Answer:

gidetgfddtgfft5f5f5f5d5f6guhuhug5xtdrd4s4d5d6v7g7h8n8b7v6v6

Answer:

Let J represent the number of tickets Jose sells. Let M represent the number of tickets Mark sells. Make equations, if Mark sells 15 more tickets than Jose, the equation is J+15=M. Because we know that in between both of them they sell 63 raffle tickets, then M+J=63. Now plug in the value of M (J+15) into M+J=63. And you get (J+15)+J=63, which is 2J+15=63. Subtract 15 from both sides and get 2J=48. Now divide 48 by 2, J=24. So now you know Jose sold 24 tickets, and to find how many Mark sold, plug in 24 into J+15=M and get 24+15=M where M is 39. Now check, 24+39=63. So Mark sold 39 tickets and Jose sold 24.

Step-by-step explanation:

Answer:

20:29

Step-by-step explanation:

Add number of hearts and circles to get total shapes.

Make sure the word placement of the ratio matches the numbers. So circles to all shapes.

20:29

circles : total shapes

Answer:

MY ANSWER IS 20 :9

BECAUSE THIS QUESTION SAID THAT LILY DREW 9 HEARTS AND 20 CIRCLES WHAT IS THE RATIO OF CIRCLES TO ALL SHAPES ?SO MY ANSWER IS 20:9

Step-by-step explanation:

BECAUSE IT SAID RATIO

MARK ME BRAINLIEST

Answer:

That question is statistical because there can be multiple answers such as, biking, walking, carpooling, and taking a bus.

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

If you multiply 2 and 8, then take the square root, the answer is 4

Answer:

the solution to the trigonometric inequality cos(0.65x) > 0.44 over the interval 0 ≤ x < 4.834.

Step-by-step explanation:

The given inequality is:

cos(0.65x) > 0.44

To solve this inequality, we need to isolate the variable x.

First, let's take the inverse cosine (arccos) of both sides to remove the cosine function:

arccos(cos(0.65x)) > arccos(0.44)

Since the range of the inverse cosine function is limited to [0, π], we can rewrite the inequality as:

0 ≤ 0.65x < π

Now, let's solve for x by dividing each part of the inequality by 0.65:

0/0.65 ≤ x < π/0.65

Simplifying, we have:

0 ≤ x < π/0.65

Now, let's calculate the approximate value of π/0.65 to determine the interval for x:

π/0.65 ≈ 4.834

i hope i helped!

The truck driver would deliver 105 packages in a 7 hours day

An equation is an expression that shows how numbers and variables are related to each other using mathematical operators.

Let y represent the number of packages delivered by the truck driver in x hours. Using the point (1, 15) and (4, 60). Hence, the equation is:

y - 15 = [(60-15)/(4-1)](x - 1)

y = 15x

For a 7 hour day (x = 7):

y = 15(7) = 105

The driver would deliver 105 packages in 7 hours

Find out more on equation at: https://brainly.com/question/29174899

#SPJ1

Answer: Population

Step-by-step explanation: Population is refers to the whole or entire members or of a given set. This is different from a sample which is used to refer to members of a subset (a subset is a certain portion or fraction of an entire set). In the scenario above, since the evaluation was based on the entire number of registered voters in the country, this means we are referring to a population. The inference about the percentage of democratic voters was drawn from a pool of all the entire number of registered voters available in the country and not from a certain subset or portion of registered voters. Hence, the evaluated group is a population.

Answer:

Yes, 9 will be the answer...

Step-by-step explanation:

3x-5 =4+2x

3x-2x = 4+5 (By transposing method)

x =9

Hope this is correct

Answer:

yeah it is ,

putting the value of x as 9

=> 3x – 5 = 4 + 2x

=> 3×9-5=4+2×9

=> 27-5 = 4+18

=> 22 = 22

✌️

The tourist's investment function can be expressed as follows:

f(x) = 720 + 35x

According the question,

The tourist's investment function can be expressed as follows:

f(x) = 720 + 35x

Where x represents the quantity of additional tours that the tourist wants to add to their travel package.

The function f(x) represents the total cost of the travel package plus the additional cost of the extra tours.

Learn more about Equation here:

https://brainly.com/question/29538993

#SPJ1

Answer:

$383.20

Step-by-step explanation:

28.74 ÷ 3 = $9.58 per hour

9.58 x 40 = 383.20

It is proved that median CM is also an altitude of triangle ABC.

A perpendicular line from a triangle's vertices to one of its opposing sides can be used to calculate the triangle's altitude. The base and the altitude combine to produce a right-angle triangle, which is frequently referred to as the triangle's height.

Find the coordinates of M

Given coordinates of A(8,9), B(10,3) and C(3,4)

We know, M the is midpoint of AB.

So,

M(x,y) = \(\frac{8+10}{2} , \frac{9+3}{2}\)

M(x,y) = (9,6)

Using distance formula,

AM = \(\sqrt{(9-8)^2+(6-9)^2}\)

AM =\(\sqrt{1+9}\)

AM = \(\sqrt{10}\).

Now,

AC = \(\sqrt{(8-3)^2+(9-4)^2}\)

AC = \(\sqrt{25+25}\)

AC = \(\sqrt{50}\)

Now,

CM = \(\sqrt{(9-3)^2+(6-4)^2}\)

CM = \(\sqrt{36+4}\)

CM= \(\sqrt{40}\)

Apply Pythagoras' theorem in triangle AMC

AC² = AM² + CM²

\(\sqrt{50^{2} } = \sqrt{10^{2}} + \sqrt{40^{2}\)

50 = 10 + 40

50 = 50

Hence, CM is an altitude.

To learn more about perpendicular line visit:

https://brainly.com/question/18271653

#SPJ9

Answer:

41.6 km/h

Step-by-step explanation:

Nao drives 95mi/2.5hr or 38 miles per hour, or 60.8 km/h

1 hr 15 min is the same as 1.25 hours

Arban drives 128km/1.25hr or 102.4 km/h

The difference is 102.4-60.8 = 41.6

The completed calculation with regards to the area of the congruent triangles can be presented as follows;

The distance formula indicates;

AM = √((x₂ - x₁)² + (y₂ - y₁)²)

Therefore, we get;

AM = √((4 - 0)² + (0 - 0)²) = √(4²)

AM = √(4²) = 4

BM = √((x₂ - x₁)² + (y₂ - y₁)²)

BM = √((4 - 4)² + (6 - 0)²) = √(6²)

BM = √(6²) = 6

AM ≅ CM Definition of the midpoint of AC

AM = CM Definition of congruent segments

CM = 4 Substitution property

Area ΔABM

A = (1/2)·b·h

= (1/2) × 4 × 6

= 12

Area ΔCBM

A = (1/2)·b·h

= (1/2) × 4 × 6

= 12

Therefore Area ΔABM = area ΔCBM by congruence

Triangles are congruent if they have the same size and shape.

The details of the reasons for the calculation steps and values are presented as follows;

Definition of midpoint of a segment

The midpoint of a line segment is the point that divides the segment into two parts of the same length

Definition of congruence?

Congruence refers to the existence of compatibility or harmony between objects, which in geometry indicates that the two geometric figures have the same measurement

Learn more on congruent triangles here: https://brainly.com/question/2938476

#SPJ1

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data

y < 6x + 9 eq. 1

Step 02:

systems of inequalities

y > 6x + 7 eq. 1

<9

Graph

y = 6x + 9 eq. 2

Unlimited/Infinite solutions

The answer is:

(-4 , 32)

(3 , 25)

The inverse function is g(x) = x² - 10, and the domain is the set of all real numbers.

Two functions are inverses if the composition between them is equal to the identity (so it is equal to x)

So, if g(x) is the inverse function, then we must have that:

f(g(x)) = x

√(g(x) + 10) = x

g(x) + 10 = x²

g(x) = x² - 10

That is the inverse, and this is a quadratic function, so the domain is the set of all real numbers.

Learn more about inverse functions at:

https://brainly.com/question/3831584

#SPJ1

the probability of gtting someone in the 18- 21 age bracket on someone who agreed to respond = 86/341 = 1/A an pencentage = 1/4 x 100 = 25

Hope it helps

Answer:

the answer is 73.723, of course that's with out rounding

Answer:

73.723

Step-by-step explanation:

no need for an explanation its just addition

The period of the sine function representing the position of the band members is 60 feet, and the amplitude is approximately   \(170.3 feet.\)

Since the band members are standing in the shape of a sinusoidal function, we can assume that their positions can be represented by the equation:

\(y = A sin(Bx)\)

where y is the vertical position of a band member, x is the horizontal position on the field, A is the amplitude, and B is the period.

Since Darla is positioned in the exact center of the field, and the person closest to her on the same horizontal line stands 10 yards away, we can assume that the sinusoidal function has a phase shift of 0. This means that the midline of the function passes through the point (0, 0).

To find the amplitude, we need to determine the maximum and minimum heights of the function.

Since the playing area of the football field measures 300 feet by 160 feet, the distance between the two farthest points on the field is the diagonal distance, which can be calculated using the Pythagorean theorem:

\(sqrt(300^2 + 160^2) \approx 340.6 feet\)

Since the distance between the farthest points on the field is equal to the distance between two peaks or two valleys of the sinusoidal function, the amplitude is half of this distance:

\(A = 340.6/2 \approx170.3 feet\)

To find the period, we can use the fact that the distance between two consecutive peaks or valleys is equal to the period of the function.

Since the person closest to Darla stands 10 yards away, or 30 feet away, we can assume that this person is standing at a peak or a valley of the function. This means that the period is twice the distance between Darla and the person closest to her:

\(P = 2(30) = 60 feet\)

Therefore, the period of the sine function representing the position of the band members is 60 feet, and the amplitude is approximately   \(170.3 feet.\)

Learn more about coordinate here:

https://brainly.com/question/16634867

#SPJ9

Answer:

Answer:

210

Step-by-step explanation:

add 30 with 60 multiplied by 3

Answer:

342

Step-by-step explanation:

Answer:

342

Step-by-step explanation:

600 - 258 = 342

Note:

Please mark as Brainliest! <3

Answer:

$880

Step-by-step explanation:

Use the equation:

\(P=(1-d)x\) with d being the discount in a decimal form, and P being the price that was bought at.

220=(1-0.75)x

simplify parenthesis terms

220=0.25x

divide both sides by 0.25

880=x

So, the original price was $880.

Hope this helps! :)