Please help me i struggle lots on this topic

Answer:

I think the answer is B. sorry if its wrong..

Step-by-step explanation:

Answer:

Bar C and the equation 4y = 44

Hope this helps!

Answer:

Solution given:

-33 = -18 + b

b=-33+18=-15

b=-15 is your answer

Step-by-step explanation:

Simply graph the two equations....the intersection of the two graphs is the solution

Answer:

-8

Step-by-step explanation:

P in (-oo:+oo)

P+1.6/(-0.4) = -12 // + 12

P+1.6/(-0.4)+12 = 0

P+8 = 0 // - 8

P = -8

P = -8

I think

5 persons are to be selected to form a committee so that at least 3 men are there on the committee, in 3192 ways the committee can be formed.

Combinations are decisions that are made by choosing some or all of a group of objects, regardless of how they are arranged. the variety of n distinct combinations, each taken r at a time,

We may have four males and one lady or three men and two women (5 men only).

∴ Required number of ways = (⁸C₃ x ⁷C₂) + (⁸C₄ x ⁷C₁) + ⁸C₅

= \(\frac{8*7*6}{3*2*1} *\frac{7*6}{2*1} + \frac{8*7*6*5*4}{4*3*2} *\frac{7}{1} + \frac{8*7*6}{3*2}\)

= 1176 + 1960 + 56

= 3192

Therefore, at least 3 men are there on the committee can be formed 3192 times.

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A. The work done is 300 ft-lbs when a 100 lb rock is lifted to a height of 3 ft.

To calculate the work done, we can use the formula: Work = force x distance x cos(Ф).In this case, the force is the force of gravity acting on the rock, which can be calculated using the formula:

force = m * g

where m is the mass of the rock and g is the acceleration due to gravity (32.17 ft/s^2).

force = 100 lb * 32.17 ft/s^2 = 3,217 ft-lbs

The distance is the height to which the rock is lifted, which is 3 ft.

The angle of the rock to the vertical is 90 degrees, so cos(90) = 0.

So,

Work = force x distance x cos(theta) = 3,217 ft-lbs * 3 ft * 0 = 300 ft-lbs

So, the work done is 300 ft-lbs.

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Answer:

Solution,

or,125°=5x+30°[Being vertically opposite angles]

or,125°-30°=5x

or,95°=5x

or,x=95°/5

Hence,x=19°

Step-by-step explanation:

According to the given information, the sample period should be from 2010-2020.

a) Model specification

The model specification based on the scenario above is as follows:

SDF= f(T, TI, NL)

Where: SDF= Sustainable Development Framework

T= Tourism

TI= Technological innovation

NL= National leadership

b) Justification for the selection of the dependent and independent variables model:

Dependent variable: The dependent variable in this model is Sustainable Development Framework (SDF). The model seeks to develop a framework for sustainable development that would facilitate growth, environmental and socio-cultural sustainability.

Independent variables:

The independent variables are tourism sustainability, technological innovation, and quality of leadership. These variables drive economic development. The inclusion of tourism sustainability reflects its importance in the global economy and its potential to drive growth.

The inclusion of technological innovation reflects its potential to enhance productivity and create new industries. The inclusion of national leadership reflects the role of governance in promoting sustainable development and managing negative externalities.

c) Justification for the selection of the sample period:

The sample period should be selected based on the availability of data for the variables of interest. Ideally, the period should be long enough to capture trends and patterns in the data. However, it should not be too long that the data becomes obsolete or no longer relevant.

Additionally, the period should also reflect the context and relevance of the research question. Therefore, the sample period for this study should cover the last decade to capture the trends and patterns in the data and reflect the relevance of the research question.

The sample period should be from 2010-2020.

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The classification of the compounds according to their functional class: A | Aldehyde

B | Alcohol

C | Ketone

D | Amine

Compound A contains a carbonyl group (C=O) bonded to two alkyl groups (R-). This is the general structure of an aldehyde. Aldehydes are characterized by their strong, sweet odor.

They are also very reactive, and can be used to make a variety of other compounds, such as esters and carboxylic acids.

Compound B contains an oxygen atom (O) bonded to two alkyl groups (R-). This is the general structure of an alcohol. Alcohols are characterized by their ability to dissolve other polar compounds, such as water. They are also used in a variety of products, such as solvents, cleaners, and fuels.

Compound C contains a carbonyl group (C=O) bonded to a propyl group (CH3CH2CH2-) and an amino group (NH2). This is the general structure of a ketone.

Ketones are characterized by their strong, sweet odor. They are also very reactive, and can be used to make a variety of other compounds, such as esters and carboxylic acids.

Compound D contains a nitrogen atom (N) bonded to three alkyl groups (R-). This is the general structure of an amine. Amines are characterized by their basic properties. They are also used in a variety of products, such as pharmaceuticals, plastics, and fertilizers.

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The best measure of central tendency to represent the ages of the team, including the coach, would be the mean or average age.

To calculate the mean, we add up all the ages and divide by the total number of people:

Mean = (Sum of all ages) / (Total number of people)

In this case, we have:

12 players who are 15 years old

8 players who are 16 years old

1 coach who is 43 years old

So, the total number of people is 12 + 8 + 1 = 21.

The sum of all the ages is:

12 × 15 (years old) + 8 × 16 (years old) + 43 (years old) = 180 + 128 + 43 = 351 (years old)

Therefore, the mean age of the team is:

Mean = 351 / 21 = 16.71 (rounded to two decimal places)

The mean is a good measure of central tendency because it takes into account all the ages in the team, including the coach, and provides an average value that is representative of the ages of the entire team. It is also a useful measure for making comparisons between different groups or teams based on their age and to estimate the mean ages of various people.

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The sequence -3,-5,-7,-9,... has modeled the function f(n) = -2n - 1

The given sequence -3, -5, -7, -9, ... can be modeled by the function:

f(n) = -2n - 1

where n represents the position of the term in the sequence.

f(1) = -2(1) - 1 = -3 (first term)

f(2) = -2(2) - 1 = -5 (second term)

f(3) = -2(3) - 1 = -7 (third term)

f(4) = -2(4) - 1 = -9 (fourth term)

The function f(n) = -2n - 1 generates the values in the sequence by subtracting 2 from each term and subtracting 1, starting from -3.

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Answer:

hol up

x=-1/8  negative one over eight

Step-by-step explanation:

(7-2)² - 5/5

Do the math in the parentheses first.

7 - 2 = 5

Now the equation should read

(5)² - 5/5     or just       5² - 5/5

Do the exponent(s).

5² = 25

25 - 5/5

Do the division.

5/5 = 1

25 - 1 = 24

Therefore, according to our equation, the answer is 24.

I hope this answered your question.

Answer:

12

Step-by-step explanation:

Given rule for a sequence:

\(c(n)=28-4(n-1)\)

To find the fifth term in the sequence, substitute n = 5 into the given equation:

\(\begin{aligned} n=5 \implies c(5)& =28-4(5-1)\\& =28-4(4)\\& =28-16\\& =12\end{aligned}\)

Therefore, the fifth term of the sequence is 12.

The probability that Y=1 given X=2 and Z=3 is 1/3.

Given that X, Y, and Z have joint distribution as shown below:

\(f(x, y, z) = \frac{xy^2z}{180}, x=1,2,3;y=1,2;z=1,2,3\)

We need to find \(P(Y=1|X=2, Z=3)\).

Therefore, we can use the conditional probability formula:

\(P(Y = 1 | X = 2, Z = 3) = \frac{P(Y = 1, X = 2, Z = 3)}{P(X = 2, Z = 3)}\)

Now we find the numerator and denominator individually:

Numerator: \(P(Y = 1, X = 2, Z = 3)\)

Here, we fix X=2, Z=3 in the given probability distribution and find the value of Y=1.

\(P(Y = 1, X = 2, Z = 3) = f(2, 1, 3) = \frac{2(1)^2(3)}{180} \\= \frac{1}{15}\)

Denominator: \(P(X = 2, Z = 3)\)

We fix Z=3 in the given probability distribution and sum over all values of Y to get the probability of X=2 and Z=3.

\(P(X = 2, Z = 3) = \sum_{y=1}^{3} f(2,y,3)P(X = 2, Z = 3) = f(2,1,3) + f(2,2,3) + f(2,3,3)\\P(X = 2, Z = 3) = \frac{2(1)^2(3)}{180} + \frac{2(2)^2(3)}{180} + \frac{2(3)^2(3)}{180}\\P(X = 2, Z = 3) = \frac{1}{5}\)

Substituting these values in the conditional probability formula, we get:

\(P(Y = 1 | X = 2, Z = 3) = \frac{P(Y = 1, X = 2, Z = 3)}{P(X = 2, Z = 3)}\\P(Y = 1 | X = 2, Z = 3) = \frac{\frac{1}{15}}{\frac{1}{5}}\\P(Y = 1 | X = 2, Z = 3) = \frac{1}{3}\)

Therefore, the probability that Y=1 given X=2 and Z=3 is 1/3.

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Answer:

11. at the 5 minute point the object would have travelled 50 Meters.

12. The average speed of the object is 10 meters per minute.

13. It will take the object 12 minutes to reach 120 Meters.

Explanation:

The object would be the blue line, the numbers on the bottom row are each connected to the numbers on the left side as if it were a graph so for each minute it would be 10 meters. If it were to connect 2 to ten then the answer would be five meters per minute and if the one were connected to the 40 it would be 40 per minute and so on... if more explaining is needed comment down below and i´d be happy to assist you!

Step-by-step explanation:

plz refer the attachment

One of the triangles' base length, b, is 3 cm. Thus, the correct answer is A.

Two congruent triangles and a rectangle were formed from the trapezoid. The two triangles are 12 cm in height. The rectangle is 12 cm in height, 14 cm in width and the base side is 20 cm. It's worth noting that a congruent triangle has the same three sides and three angles.

The triangle's base length may be calculated as follows:

The sides of the triangle may be calculated using the area of the trapezoid:

Where:

Hence:

We know that the height of the triangles is 12 cm and the area of the trapezoid is 204 cm². The area of the rectangle is also given as 14 cm x 12 cm = 168 cm². This information may be used to construct the equation:

Solving for b, we get:

Therefore, the base length of the triangle is 3 cm, and the correct answer is A.

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Answer:

A

Step-by-step explanation:

a

The probability of drawing a white ball on the second draw, without replacing the first ball, is 8/13.

To solve this problem, we need to use conditional probability.

The probability of drawing a white ball on the first draw is 8/13 (since there are 8 white balls and 13 total balls in the urn).

If a white ball is drawn on the first draw, then there will be 7 white balls and 5 black balls left in the urn. So the probability of drawing a white ball on the second draw, given that a white ball was drawn on the first draw, is 7/12.

If a black ball is drawn on the first draw, then there will be 8 white balls and 4 black balls left in the urn. So the probability of drawing a white ball on the second draw, given that a black ball was drawn on the first draw, is 8/12.

Now we can use the law of total probability to find the overall probability of drawing a white ball on the second draw:

P(white on second draw) = P(white on first draw) * P(white on second draw | white on first draw) + P(black on first draw) * P(white on second draw | black on first draw)
= (8/13) * (7/12) + (5/13) * (8/12)
= 56/156 + 40/156
= 96/156
= 8/13

Therefore, the probability of drawing a white ball on the second draw, without replacing the first ball, is 8/13.

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Answer:

Our calculator limits your interest deduction to the interest payment that would be paid on a $1,000,000 mortgage. Interest rate: Annual interest rate for this

Step-by-step explanation:

Answer:

Center: (0,0)

Radius: 3

Graph:

Please find attachment to view the graph.

Step-by-step explanation:

Please give the brainliest.

Answer:

the answer is 6.33 = y for this

Answer:

Wouldn't that be 6.33?

Step-by-step explanation:

Cause you would just subtract 8.53 minus 2.2?

Answer:

$1.60

Step-by-step explanation:

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Answer:

AB = 4

Step-by-step explanation:

AB + BC = AC

Substitute the line segments for their given values:

AB + 38 = 42

Subtract both sides by 38:

AB = 42 - 38

AB = 4

Check your work:

4 + 38 = 42

42 = 42

Correct!

Answer:

mixed number: 35/18

simplified: 1 17/18

decimal: 1.9444444444444

Answer: The answer is the first/top choice.

Step-by-step explanation: By definition, congruent is "Identical in form, coinciding exactly when superimposed". If you superimposed on onto the other, it would not match up, and therefore would not be congruent.