The Heights Of 13 Men In Centimetres Are Given Below. 162, 160,163, 160 , 165,187,170, 167, 174, 176, (2024)

Mathematics College

Answers

Answer 1

Solution

Step 1

Write the data

162, 160,163, 160, 165,187,170, 167, 174, 176, 178, 179, 178.

Step 2:

Write the mean formula

[tex]\begin{gathered} Mean\text{ = }\frac{Sum\text{ of numbers}}{total\text{ number of numbers}} \\ Mean\text{ = }\frac{162+160+163+\text{ 160+ }\frac{\placeholder{⬚}}{\placeholder{⬚}}165+187+170+167+174+176+178+179+178.}{13} \\ Mean\text{ = }\frac{2199}{13} \\ Mean\text{ = 169.15} \end{gathered}[/tex]

Mean = 169.15

Related Questions

What is the absolute value of Point A labelled on the number line?АBс+-101

Answers

For this case we can see that the point A is on the negative side of the line and we can see that the answer would be

[tex]-3\frac{1}{3}=-\frac{10}{3}[/tex]

But the absolute value would be:

[tex]\left|-3\frac{1}{3}\right|=\left|3\frac{1}{3}\right|[/tex]

And the best answer would be:

[tex]3\frac{1}{3}[/tex]

Question 1When the inequality y < x is graphed on a coordinate plane, which quadrant will becompletely shaded? Write I, II, III, or IV.QuadrantThe solution is

Answers

To grap the given lineal inequality:

[tex]y

Find two points in the boundary line:

[tex]y=x[/tex]

As y=x the points have the same coordinate value for x and y

Points (5,5) and (-3,-3)

Put those points in the plane and link them with a dotted line (as the inequality sing is < the boundary line is a dotted line).

The shadow area is under the line (the inequality sing is < (less than), then the solution is the values that are less than the line (under the line).

As you can see above the quadrant that is completely shaded is IV.Solution is all the values in the shaded area.

7 Find the selling price sofa: $225, discount 75%

Answers

Given

Price: $225

Discount: 75%

Procedure

Selling price sofa

[tex]225\cdot(1-0.75)=56.25[/tex]

The answer would be $56.25

I'm so confused as to what this is asking please help

Answers

Given

Statements

Find

Which of the following can be used to estimate the instantaneous rate of change at a point on a continuous function.

Explanation

as we know that the slope of the tangent line through a point on the graph of a function gives the function's instantaneous rate of change at that point.

so , option b is correct .

Final Answer

Hence , the slope of the tangent line drawn at the point gives the instantaneous rate of change at a point.

Due to gravity, an object falls 16t2 feet in t seconds. You drop a rock from a bridge that is 64 feet above the water. Will the rock hit the water in 2 seconds?

Answers

It is given that the expression for the distance an object falls in t seconds is:

[tex]16t^2[/tex]

It is required to find out if a rock that is 64 feet above water will hit the water in 2 seconds.

To do this, equate the distance above water to the expression given for distance:

[tex]16t^2=64[/tex]

Next, solve the equation for t:

[tex]\begin{gathered} 16t^2=64 \\ \text{Divide both sides by 16:} \\ \Rightarrow\frac{16t^2}{16}=\frac{64}{16} \\ \Rightarrow t^2=4 \\ \Rightarrow t=\sqrt[]{4}=2 \end{gathered}[/tex]

The time it will take for the object to fall a distance of 64 feet, is calculated to be 2 seconds.

This implies that if the rock is 64 feet from the water, it will hit the water in 2 seconds.

Yes, the rock will hit the water in 2 seconds.

If the mean of five values is 41, find the sum of the values.The sum of the values is

Answers

The mean is determined by dividing the sum by the number of values. Let s be the sum, we can expressed it as

[tex]\frac{s}{5}=41[/tex]

Solve for s by multiplying both sides by 5

[tex]\begin{gathered} \frac{s}{5}\cdot5=41\cdot5 \\ \frac{s}{\cancel{5}}\cdot\cancel{5}=41\cdot5 \\ s=205 \end{gathered}[/tex]

Therefore, the sum of values is 205.

Lamont builds a toy block tower 4 feet high. He then puts a toy antenna on the towerthat is 4 foot tall.What is the height of the block tower including the tower antenna?

Answers

Solution

Draw a diagramatic representation of the question

Step 2

Add both heights to determine the height of the block including the tower antenna

[tex]\begin{gathered} \frac{1}{4}+4\frac{2}{3} \\ =\frac{1}{4}+\frac{14}{3} \\ =\frac{59}{12}\text{feet} \\ =4\frac{11}{12}\text{ f}eet \end{gathered}[/tex]

Hence the total height required = 59/12 feet or 4 11/12 feet approximately

The first five terms of a pattern are given below.13, 19, 25, 31, 37, ...

Answers

Given:

13, 19, 25, 31, 37, ...

Required:

We need to find the expression to determine the nth term of the given pattern.

Explanation:

Consider the individual options.

1)

[tex]7+6n[/tex]

Substitute n=1 in the expression we get the first term.

[tex]7+6(1)=13[/tex]

Substitute n=2 in the expression we get the second term.

[tex]7+6(2)=7+12=19[/tex]

Substitute n=3 in the expression we get the third term.

[tex]7+6(3)=7+18=25[/tex]

Substitute n=4 in the expression we get the fourth term.

[tex]7+6(4)=7+24=31[/tex]

Substitute n=5 in the expression we get the fifth term.

[tex]7+6(5)=7+30=37[/tex]

All five terms of the given pattern satisfy the expression 7+6(n).

Hence the nth term of the given pattern is 7+6(n).

Final answer:

[tex]7+6(n)[/tex]

The next model of a sports car will cost 6.2% more than the current model. The current model costs $39,000. How much will the price increase in dollars? Whatwill be the price of the next model?Increase in price:Price of next model:

Answers

We have to calculate the increase in price and the price of the new model.

The next model will cost 6.2% more than the current model.

We can calculate the increase in price by multiplying the price of the current model by the increase proportion (0.062, which is the decimal expression for 6.2%):

[tex]I=\frac{6.2}{100}\cdot39000=0.062\cdot39000=2418[/tex]

With the increase, we can calculate the price of the next model as:

[tex]N=P+I=39000+2418=41418[/tex]

Answer:

Increase in price: $2,418

Price of next model: $41,418

You can insert Desmos graphs or hand-drawn graphs.Draw a normal curve representation for the area, then write thenumerical value of the area under the normal curve for each of thefollowingA) All values to the right of z=2.86B) All values Not between -1.09 and 0.16 standard deviations from themean. (hint: if you use Desmos, you will need to create two graphs)Edit View Insert Format Tools Table

Answers

SOLUTION:

We want to draw graphs showing the following:

A, All values to the right of z = 2.86

This is the plot, the area is marked in red;

The numerical value for this area is;

[tex]P\left(z>2.86\right)=0.0021182[/tex]

B. All values Not between -1.09 and 0.16 standard deviations from the mean.

The numerical value for this area which is the sum of the blue and red areas is;

[tex]P\left(z<-1.09\text{ }or\text{ }z>0.16\right)=0.5743[/tex]

Question 4. QY W Which of the following numbers is irrational? A A. 2.1245 E B. 3.95 C. 0.231124. D. 6.5 10

Answers

Irrational numbers are all the real numbers which cannot be expressed as the ratio of two integers:

In this case, the elipsis (...) means that this number does not stop, so there is no repeating pattern of digits. Since the number does not stop and does not repeat, it is irrational.

ANSWER: 0.231124...

con_PRoPfoT66DjbRthZcZAiBIM2-Q/viewform?hr_submission=ChI2JiQ5uQGEHAIIMKcta4HEgclipmaqaYGEAE Jackie cut 3-yards of ribbon into 6 equal lengths of ribbon. What is the length of each ribbon in yards? B. C. A. 1 2 18 1 6 3 D.2

Answers

Explanation:

We have to divide the length of the ribbon by 6:

[tex]\frac{3}{6}=\frac{1}{2}[/tex]

Answer:

Each ribbon has a length of 1/2yd (option A)

The equation of a line of best fit relating the number of cats c at an animal shelter to thenumber of dogs dis c= 2.1d - 26. Predict the number of cats at a shelter where there are30 dogs.

Answers

In order to predict the number of cats at that shelter with 30 dogs, we can use the given equation

c = 2.1d - 26

and make d = 30:

c = 2.1 * 30 - 26

Now, we need to develop the calculations to find c (we first solve the multiplication, and then the subtraction):

c = 2.1 * 30 - 26

= 63 - 26

= 37

Therefore, the predicted number of cats at that shelter is 37.

John is painting parallel lines in the parking lot to create parking spaces. The measure of angle A is 60° What is the measure of angle B?A-60 °B-90 °C-120 °D-180 °

Answers

Since these are parallel lines, the angles formed are congruent ( equal).

So, Angle B=A =60°

Correct option: A-60 °

What is the length of the line segment shown in the image?

Answers

Answer:

The length of the line segment is;

[tex]7.62\text{ units}[/tex]

Explanation:

Given the line segment in the attached image.

Drawing a right angled triangle to get the length of the line segment;

We can then use pythagoras theorem to calculate length of the line segment;

[tex]c=\sqrt[]{a^2+b^2}[/tex]

From the attached image;

[tex]\begin{gathered} a=3 \\ b=7 \end{gathered}[/tex]

substituting the given values;

[tex]\begin{gathered} c=\sqrt[]{3^2+7^2} \\ c=\sqrt[]{9+49} \\ c=\sqrt[]{58} \\ c=7.62\text{ units} \end{gathered}[/tex]

Therefore, the length of the line segment is;

[tex]7.62\text{ units}[/tex]

Instructions: Factor the following expressions completely, show your work and explain each step when factoring each expression.1) x^4 - 812) p^2 - 4p = 103) 3x^2 - 2x = -12

Answers

1)

The expression to factor,

[tex]x^4-81[/tex]

We can use the formula shown below to simplify the expression.

Addition Distributive Law

[tex]a^2-b^2=(a+b)(a-b)[/tex]

In order to use this law to simplify, let's re-arrange our expression given,

[tex]\begin{gathered} x^4-81 \\ \text{This can be written as:} \\ (x^2)^2-(9)^2 \end{gathered}[/tex]

This form of the expression is perfect to use the addition distributive law upon.

Using the rule, we can write the expression as,

[tex]\begin{gathered} (x^2)^2-(9)^2 \\ =(x^2+9)(x^2-9) \end{gathered}[/tex]

This is not the fully factored form. Because we can use the same rule to further simplify the term (x^2 - 9).

Let's write it in the form:

[tex]\begin{gathered} (x^2-9) \\ \text{This can be written as:} \\ (x)^2-(3)^2 \end{gathered}[/tex]

The image below clarifies this,

So, this can be written as:

[tex]\begin{gathered} x^4-81 \\ =(x^2)^2-(9)^2 \\ =(x^2+9)(x^2-9) \\ =(x^2+9)((x)^2-(3)^2) \\ =(x^2+9)(x+3)(x-3) \end{gathered}[/tex]

This is the fully factored form.

a model house is 12 cm long if it was built with a scale factor of 3 cm equal to 7 feet then how long is the house in real life

Answers

ANSWER:

28 feet

STEP-BY-STEP EXPLANATION:

We can determine the actual size of the house, since we know the ratio between centimeters and feet, just like this:

[tex]12\text{ cm}\cdot\frac{7\text{ ft}}{3\text{ cm}}=28\text{ ft}[/tex]

The house is 28 feet in real life.

EXPRESSION1)A punch recipe requires 2 cups of cranberry juice to make 3 gallons of punch. Using the same recipe, what is the amount of cranberry juice needed for 1 gallon of punch? Please show me how you got your answer.2)A HIGH-SPEED ELEVATOR CAN RISE 480 FT IN 30 SEC, WHICH EXPRESSION REPRESENTS THE RATE. IN FT PER MIN, OF THE ELEVATOR

Answers

Step 1

Given;

[tex]2\text{ cups of cranberry juice - 3 gallons of punch}[/tex]

Required; To find the amount of cranberry juice required for 1 gallon of punch juice.

Step 2

So basically, you can set this up in proportion.

For every gallon of punch, 2 cups of cranberry juice is needed. What you need to find is the amount of cranberry juice is needed for one gallon. So then you would have to set up your proportion like this:

[tex]\begin{gathered} \frac{2\text{ cups of cranberry juice}}{\text{3 gallons of punch}}=\frac{x\text{ cups of cranberry juice}}{1\text{ gallon of punch}} \\ or \\ \frac{2}{3}=\frac{x}{1} \end{gathered}[/tex]

We will now find the value of x by cross multiplying

[tex]\begin{gathered} 2\times1=3\times x \\ 2=3x \\ \frac{3x}{3}=\frac{2}{3} \\ x=\frac{2}{3} \end{gathered}[/tex]

So you will need 2/3 cups of cranberry juice for 1 gallon of punch

Answer;

[tex]\frac{2}{3}\text{ cups of cranberry juice}[/tex]

Step 3

2) The elevator rises 480ft in 30 seconds

One minute=60 seconds.

Therefore, we will have;

[tex]\begin{gathered} \frac{480ft}{\text{xft}}=\frac{30\sec onds}{1\text{ minute}} \\ 1\text{ minute=60 seconds} \\ \frac{480ft}{\text{xft}}=\frac{30\sec onds}{60\text{ seconds}} \\ or \\ \frac{480}{x}=\frac{30}{60} \\ \frac{480}{x}=\frac{1}{2} \\ \end{gathered}[/tex][tex]\begin{gathered} x=480\times2 \\ x=960ft\text{ per second} \end{gathered}[/tex]

how we do this one last tutor got it wrong

Answers

First, we have to find the derivative

[tex]\begin{gathered} h^(\theta)=3cos(\frac{\theta}{2}) \\ \\ h^{\prime}(\theta)=3\frac{d}{d\theta}(cos(\frac{\theta}{2})) \\ h^{\prime}(\theta)=3\text{ \lparen - }\sin(\frac{\theta}{2})\frac{d}{d\theta}(\frac{\theta}{2})) \\ \\ h^{\prime}(\theta)=3(\text{ -}sin(\frac{\theta}{2})(\frac{1}{2}) \\ \\ h^{\prime}(\theta)=\text{ -}\frac{3}{2}sin(\frac{\theta}{2}) \end{gathered}[/tex][tex]\begin{gathered} \text{ - }\frac{3}{2}sin(\frac{\theta}{2})=0 \\ sin(\frac{\theta}{2})=0 \\ \sin^{-1}(0( \\ sin0º=0 \\ andsin180º=0 \\ \\ \\ \end{gathered}[/tex]

now he solve for h(theta)

[tex]\begin{gathered} h(\theta)=3cos(\frac{\theta}{2}) \\ \\ h(\text{ -}2\pi)=3cos(\text{ -}\frac{2\pi}{2})=3cos(\text{ -}\pi)=3(\text{ -1\rparen= -3} \\ h(0)=3cos(\frac{0}{2})=3cos0=3(1)=3 \end{gathered}[/tex]

Use the protractor to find the measure of each angle. Then classify as acute, right, or obtuse.

Answers

Answer:

∠CGE is a right angle and has a measure of 90.

∠BGD is an obtuse angle and has a measure of 93.

∠CGB is an acute angle and has a measure of 50.

Acute angles are angles that measure less than 90.

Right angles are angles that measure exactly 90.

Obtuse angles are angles that measure greater than 90.

∠CGE

As we can see, ray C is at 70, while ray E is at 160.

160 - 70 = 90, since it measures 90, it is a right angle.

∠BGD

Ray B is at 20 while Ray D is at 113

113 - 20 = 93, since it measures greater than 90, it is an obtuse angle.

∠CGB

Ray C is at 70, Ray B is at 20

70 - 20 = 50, since it measures less than 90, it is an acute angle.

1. June bought some books for $51. This was ⅗ of hermoney. How much money did she have to beginwith?

Answers

Since $51 was 3/5 of her money, then if we multiply 3/5 by the amount of money she had, x, we should obtain 51.

[tex]\frac{3}{5}x=51[/tex]

We can then solve the above equation for x.

[tex]\begin{gathered} 3\cdot x=51\cdot5 \\ 3\cdot x=255 \\ x=\frac{255}{3} \\ x=85 \end{gathered}[/tex]

She had $85.

6. The equation ft) = 13,000(1.024)^t models the annual tuition at a private school over time, t. By what percent does the tuition increase each year? a. 0.24% b. 2.4% C. 1.024% d. 24%

Answers

We have the expression:

[tex]f(t)=13000\cdot(1.024)^t[/tex]

We can find how much the annual tuition increases each year by calculating:

[tex]\begin{gathered} \Delta=\frac{f(t+1)-f(t)}{f(t)}=\frac{f(t+1)}{f(t)}-1=\frac{13000\cdot(1.024)^{t+1}}{13000\cdot(1.024)^t}-1 \\ \Delta=1.024^{\mleft\{t+1-t\mright\}}-1=1.024-1=0.024\cdot100\%=2.4\% \end{gathered}[/tex]

Answer: b. 2.4%

Just need you to answer the last question at the bottom of this problem

Answers

Solution

Since we already given

[tex]\begin{gathered} m=0 \\ b=-6 \end{gathered}[/tex]

Note: The equation for a line in slope-intercept is given as

[tex]y=mx+b[/tex]

Putting m and b

[tex]\begin{gathered} y=mx+b \\ y=0(x)-6 \\ y=-6 \end{gathered}[/tex]

Therefore,

[tex]y=-6[/tex]

A bacteria colony starts with 3 bacteria at the beginning and doubles every hour. How wouldyou write an explicit equation to model this situation?A f(x) = 2-3%B. f(x) = 3x + 2C f(x) = 2x + 3D. f(x) = 3.24

Answers

In this problem we have a linear equatiion of the form

f(x)=mx+b

where

m=2 -----> slope or unit rate

b=3 -----> initial value or y-intercept

substitute

f(x)=2x+3

therefore

The answer is

Option C

Use intercepts to graph the linear equation −12x+y=−4.

Answers

Answer:

x-intercept=-1/3

y-intercept=-4

Step-by-step explanation:

Find the x-intercept by setting y to zero:

-12x+0=4

-12x=4

x= 4/(-12)

x= -1/3

Find the y-intercept by setting x to 0

-12(0) + y=-4

y=-4

Draw a line through the intercepts

Write a function that transforms f(x) = 2x^3 in the following way:stretch vertically by a factor of 5 and shift 3 units left.

Answers

Given:

[tex]f(x)=2x^3[/tex]

To write:

The function when f(x) is stretched vertically by a factor of 5 and shifted 3 units left.

Explanation:

In general, a vertical stretch by a factor b and shift a units left is given by the equation

[tex]y=bf\left(x+a\right)[/tex]

So, the new function becomes,

[tex]\begin{gathered} y=5f(x+3) \\ y=g(x)=5\times2(x+3)^3 \\ g(x)=10(x+3)^3 \end{gathered}[/tex]

Final answer:

The new function is,

[tex]g(x)=10(x+3)^{3}[/tex]

Sam has a summer job at a new office building. He can paint 34 of a room in 23 of an hour. He gets paid $15 per hour.

How much money will he earn for painting 24 rooms?

Answers

The amount earned painting 24 rooms is 243.5 dollars.

How to find the amount he earns painting?

Sam has a summer job at a new office building. Sam can paint 34 of a room in 23 of an hour. He gets paid $15 per hour.

The amount of money he will earn painting 24 rooms can be calculated as follows:

Therefore,

34 rooms = 23 hours

24 rooms = ?

cross multiply

number of hours he will paint = 23 × 24 / 34

number of hours he will paint = 552 / 34

number of hours he will paint = 16.2352941176

He earns 15 dollars per hour.

Therefore,

amount earn painting 24 rooms = 16.2352941176 × 15

amount earned painting 24 rooms = 243.529411765

Therefore,

amount earned painting 24 rooms = 243.5 dollars

learn more on earnings here:https://brainly.com/question/13821000

#SPJ1

A room of a house is k meters wide and (k+5)meters long. A carpet is to be laid on the floor so that there will be a 1-meter border left all around the room. The uncovered area of the floor can be represented by the expression: k(k+5)−[(k+3)(k−2)] What does (k+3) represent? Athe width of the carpetBthe length of the carpetCthe width of the uncovered areaDthe length of the uncovered area

Answers

The length of the room is

[tex]=k+5[/tex]

The width of the room is

[tex]=k[/tex]

The image below illustrates the question

The side of the room should have a 1-meter border, this means that on both sides of the room,the length and breadth of the room will be reduced by 2 meter

Hence,

The length of the carpet will be

[tex]\begin{gathered} =\text{length of the room - 2} \\ =k+5-2 \\ =k+3 \end{gathered}[/tex]

The width of the carpet will be

[tex]\begin{gathered} =\text{width of the room}-2 \\ =k-2 \end{gathered}[/tex]

The area of the uncovered part will be

[tex]=\text{area of the room - area of the carpet}[/tex]

The area of the room is

[tex]\begin{gathered} =\text{length of room}\times\text{width of room} \\ =k(k+5) \end{gathered}[/tex]

The area of the carpet will be

[tex]\begin{gathered} =\text{length of carpet}\times width\text{ of carper} \\ =(k+3)(k-2) \end{gathered}[/tex]

Hence,

the area of the uncovered part will be

[tex]=k(k+5)-(k+3)(k-2)[/tex]

Therefore,

k+3 represents the length of the carpet

The final answer is OPTION B

Za and Zbare complementary angles. Za measures 37°.What is the measure of Zb?

Answers

Complementary angles add up to 90°.

So:

Za+Zb=90°

Replacing with the value of Za = 37°

37°+Zb =90°

Solving for Zb:

Zb = 90°-37°

Zb= 53°

List two values that make -5x < 2 true and two values that make -5x < 2false

Answers

Ok, so

Here we have an inequality, so, we're going to solve it.

-5x<2. If we solve this inequality, we obtain x > (-2/5).

(Remember that sign change because of division by a negative number).

So, the interval of solution will be (-2/5, infinity).

Then, two values that make -5x<2 true would be:

- 1 and 2. for example.

And, two values that make -5x<2 false would be:

- -3 and -4, for example.

The Heights Of 13 Men In Centimetres Are Given Below. 162, 160,163, 160 , 165,187,170, 167, 174, 176, (2024)

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