an = -15 + 5(n – 1)
Find the 21st term of the sequence.

Answers

Answer 1

Answer:

\(a21 = - 15 + 5(21 - 1) \\ = - 15 + 105 - 5 \\ = 85\)

Answer 2

85 the 21st term of the sequence.

What is Arithmetic progression?

An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.

here, we have,

an = -15 + 5(n – 1)

so,

a_21= -15+(21-1)5

      =-15+100

      =85

Hence, 85 the 21st term of the sequence.

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Related Questions

Marco needs to buy some dog food. At the nearest​ store, 5 bags of dog food cost ​$27.50. How much would Marco spend on 3 bags of dog ​food?

Answers

Answer:

$16.50

Step-by-step explanation:

$27.50/5=5.5

5.5*3=16.5

Answer:

What we can do is calculating what one bag cost. If we know that 5 cost 27.50 dollars, to know how much does one cost we only divide:

27.50/5 = 5.50 dollars

Now, we know how much does one bag cost, so we multiply it by three:

5.50 * 3 = 16.50

Now, we know 3 bags cost 16.5 dollars

Which of the following could be an example of a function with a domain
(-∞0,00) and a range (-∞,4)? Check all that apply.
A. V = -(0.25)* - 4
-
□ B. V = − (0.25)*+4
c. V = (3)* +4
□ D. V = − (3)* — 4
-

Which of the following could be an example of a function with a domain(-0,00) and a range (-,4)? Check

Answers

The correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are given below.Option A. V = -(0.25)x - 4 Option B. V = − (0.25)x+4

A function can be defined as a special relation where each input has exactly one output. The set of values that a function takes as input is known as the domain of the function. The set of all output values that are obtained by evaluating a function is known as the range of the function.

From the given options, only option A and option B are the functions that satisfy the condition.Both of the options are linear equations and graph of linear equation is always a straight line. By solving both of the given options, we will get the range as (-∞, 4) and domain as (-∞, 0).Hence, the correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are option A and option B.

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what is the scale factor of the dilation?

what is the scale factor of the dilation?

Answers

The scale factor of the dilation is k = 1/3

Given data ,

Let the coordinates of the triangle KLM be

K ( -2 , 8 ) , L ( 7 , 2 ) and M ( -15 , -1 )

Let the coordinates of the triangle RST be

R ( 4 , 8 ) , S ( 7 , 6 ) and T ( 0 , 5 )

Scale factor = Distance from center of dilation to corresponding vertex of image triangle / Distance from center of dilation to corresponding vertex of pre-image triangle

Distance from center of dilation C to vertex R = √((xR - xC)^2 + (yR - yC)^2)

Distance from center of dilation C to vertex K = √((xK - xC)^2 + (yK - yC)^2)

Plugging in the given coordinates:

Distance from center of dilation C to vertex

R = √((4 - 7)² + (8 - 8)²) = √9 = 3

Distance from center of dilation C to vertex

K = √((-2 - 7)² + (8 - 8)²) = √81 = 9

Now, we can calculate the scale factor:

Scale factor = Distance from center of dilation to corresponding vertex of image triangle / Distance from center of dilation to corresponding vertex of pre-image triangle

Scale factor = 3 / 9 = 1/3

Hence , the scale factor of the dilation that maps triangle KLM to triangle RST with the center of dilation at point C(7, 8) is 1/3

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The bar graph shows the numbers of reserved campsites at a campground for one week. What percent of the reservations were for Friday or Saturday? Write the percent as a mixed number in simplest form.

The bar graph shows the numbers of reserved campsites at a campground for one week. What percent of the

Answers

Answer:

3/2

Step-by-step explanation:

The bar graph shows the numbers of reserved campsites at a campground for one week. What percent of the

Jonas wants to mail a package that weighs 8.5 kilograms. How much does the package weigh in pounds ?

Answers

Answer: 18.7 lbs

Step-by-step explanation:

1kg = 2.2 lbs

This means that you multiply 2.2 and 8.5 (2.2×8.5)

5. How can a rocket change direction when it is far out in space and is essentially in a vacuum?

Answers

Answer:

With enough centrifugal force and outward thrust the rocket can exceed the pull of the vacuum no matter how strong it is.

Step-by-step explanation:

12.A taxi service charges you $ 1.50 plus
$0.60 per mile for a trip to the airport.
Angie paid $13.50 for her ride to the
airport. How far did she travel?

Answers

Answer:

20 miles

Step-by-step explanation:

Add $1.50 plus $0.60 times 20 which is $13.50

The number you multiply to get to $13.50 is the amount of miles

Solve. Justify your responses.

Given:

AB║CD║EF


Prove: m∠1+m∠2+m∠3+m∠4=360°

Solve. Justify your responses.Given: ABCDEF Prove: m1+m2+m3+m4=360

Answers

Answer/Step-by-step explanation:

\( \overline{AB} \parallel \overline{CD} \parallel \overline{EF} \) ----› Given

\( \angle 1 + \angle 2 = 180 \) ----› consecutive interior angles are supplementary

\( \angle 3 + \angle 4 = 180 \) ----› consecutive interior angles are supplementary

Therefore:

\( \angle 1 + \angle 2 + \angle 3 + \angle 4 = 360 \)

p – 12 = 1 just answer it

Answers

Answer:

p=13

Step-by-step explanation:

because I said so and it right

Answer:

P=13

Step-by-step explanation:

Z x 8 = 32Z = _____ Find the missing factor.

Answers

Solving the equation ,

\(\begin{gathered} Z\times8=32 \\ Z=\frac{32}{8} \\ Z=4 \end{gathered}\)

. Sam started a dog-walking business. He charges $5 for each dog for a thirty-minute walk. How much doSam earn per hour walking just one dog?

Answers

It is given that the person S has a dog walking business

He charges 5$ per 30 minutes for each dog he walks.

Therefore in one hour, there are 60 minutes since

\(1hr=60\min \)

He gets 5$ for 30 minutes

Therefore he will get:

\(5\times2=10\)

10 dollars for 1 hour.

HELP ME WITH THIS PLZ I DON'T UNDERSTEND IT PLZ HELP PPLLLZZZZZZ PLZ PLZ PLLZ HELP ME PLZ I NEED HELP PLZ HELP MMMEEEEE



Which question is statistical?




A.)What number of feet is equivalent to three miles?

B.)How many miles did your family drive last week?

C.)How many miles are between the library and the post office?

D.)How many miles does each member of the biking club ride each week?

Answers

The answer would be A

The box-and-whisker plot represents the heights (in meters) of the tallest buildings in Chicago.

a. What percent of the buildings are no taller than 345 meters?

About ____
percent of the buildings are no taller than 345 meters.

The box-and-whisker plot represents the heights (in meters) of the tallest buildings in Chicago.a. What

Answers

Answer:

75%

Step-by-step explanation:

The answer is 75% because each point/dot, represents 25% of the data.  Below 345 meters are 3 points, therefore 3 * 25% = 75%.

Approximately 75% of the buildings are no taller than 345 meters for the box-and-whisker plot.

What is the box and whisker plot?

A box and whisker plot (also known as a box plot) depicts a five-number summary of a set of data: lowest, lower quartile, median, upper quartile, and maximum.

The box-and-whisker plot represents the heights (in meters) of the tallest buildings in Chicago.

We can see that all three of the data points that are less than or equal to 345 meters are included in the lower half of the box-and-whisker plot, which represents the range from the minimum to the median height.

This means 3 × 25% = 75%.

So, we can estimate that approximately 50% of the buildings are no taller than 345 meters.

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Please help!!

−7c+9−8c+1

Answers

Answer:-5(3c-2

Step-by-step explanation:

Answer: -15c + 10

Step-by-step explanation:

-7c + 9 - 8c + 1

Combine Like Terms:

(-7 -8c) + (9+1)

-15c + 10

11. Find f(x) and g(x) so that the function can be described as y=f(g(x)).

y= 4/x^2+9

Answers

There are many ways to find f and g, so the composition of those is  (f o g)(x) = 4/(x² + 9).

What is composite function?

A function whose values are obtained from two given functions by first applying one to an independent variable and then using the result to apply the second, and whose domain is made up of those independent variable values for which the first function's result falls within the second function's domain.

Find f and g, so that                        

(f o g)(x)  =  4/x²+9                

Well, there is more than one possibility.                                                  

For instance, It can be:  f(x)  = 4/x  and  g(x) = x² + 9

and then you have                          

(f o g)(x)  =  f[ g(x) ]                    

(f o g)(x)  = 4/g(x)                      

(f o g)(x)  =  4/x²+9                                                      

Another possibility:   f(x)  =  4/x+9    and g(x) = x²

and for those, you get

(f o g)(x)  =  f[ g(x) ]              

(f o g)(x)  =   4/g(x)+9      

(f o g)(x)  =  4/x²+9                                                              

Since f and g can be found in a variety of ways, as you can see above, the composition of those is  (f o g)(x) = 4/(x² + 9).

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in wxy x=y, wx= 9x-11, xy= 4x-1, and wy= 7x-3, find x and the measure of each side

Answers

Answer:

WX = WY

9x - 11 = 7x - 3..........Then subtract 7x to the other side such that

2x - 11 = -3..........Then add 11 to both sides such that

2x = 8...........Then divide 2 such that

x = 4

Now we can find each side such that

WX = 9(4)-11 = 25

WY = 7(4)-3 = 25

XY = 4(4)+1 = 17

The value of x is 4 and the length of side WX is 25, WY is 25 and XY is 15 and this can be determined by using the given data and arithmetic operations.

Given :

Triangle WXY.Angle x \(\cong\) Angle yWX = 9x -11XY = 4x-1WY = 7x-3

Given that Angle x \(\cong\) Angle y then according to properties of triangle WX = WY.

WX = WY

9x - 11 = 7x - 3

2x = 8

x = 4

Now, put the value of x in the given data in order to find the length of each side.

WX = 9(4) - 11 = 25

XY = 4(4) - 1 = 15

WY = 7(4) - 3 = 25

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jack want to buy a coat that cost 74.95 the sales tax rate in his city 61/2% what is the total costfor the coat

Answers

Answer:

$79.7468

Step-by-step explanation:

which unit represents the faster car?

1.18 mi/hr

71 mi/hr

1.25 mi/hr

95 mi/hr

which unit represents the faster car?1.18 mi/hr71 mi/hr1.25 mi/hr95 mi/hr

Answers

It’s b explanations: I don’t know you figure that out luck

x^6-25x^3+216=0 me ayudan porfavor

Answers

Answer:

The answer is no solution

Step-by-step explanation:

Answer:

No solution

Step-by-step explanation:

or A 5-pack of baseball caps costs $36.80. What is the unit price? $ per cap

Answers

The answer is $7.36 since there is 5 caps and they cost $36.80 you divide 36.80 by 5

7.36 for each cap

$36.80 is the cost for 5 caps. if we divide the cost of the pack to the individual number of idems (caps), the equation (36.80÷5) will come out to $7.36, meaning $7.36 is the cost for each individual cap.

Which of these t distributions is most different from the standard Normal distribution N(0,1)?a. t distribution with df = 1
b. t distribution with df = 8
c. t distribution with df = 100
d. All t distributions are drastically different from N(0,1)

Answers

Option (a) is correct: the t distribution with df = 1 is the most different from the standard normal distribution N(0,1).

The t-distribution with df = 1 is the most different from the standard normal distribution N(0,1).

The t-distribution is a family of distributions that is similar in shape to the normal distribution but has heavier tails. The degree of freedom (df) parameter determines the shape of the t-distribution. As the df increases, the t-distribution approaches the normal distribution.

When df = 1, the t-distribution has a very different shape from the normal distribution. It has a much higher peak and much heavier tails, making it a more extreme distribution than the normal distribution. This is because the t-distribution with df = 1 has less data to work with, which leads to more extreme values.

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im cant figure out how to do this one ((-3)^2)^-3

Answers

Answer:

\(\dfrac{1}{729}\)

Step-by-step explanation:

\(\left(\dfrac{}{}(-3)^2\dfrac{}{}\right)^{-3}\)

First, we should evaluate inside the large parentheses:

\((-3)^2 = (-3)\cdot (-3) = 9\)

We know that a number to a positive exponent is equal to the base number multiplied by itself as many times as the exponent. For example,

\(4^3 = 4 \, \cdot\, 4\, \cdot \,4\)

       ↑1 ↑2 ↑3 times because the exponent is 3

Next, we can put the value 9 into where \((-3)^2\) was originally:

\((9)^{-3}\)

We know that a number to a negative power is equal to 1 divided by that number to the absolute value of that negative power. For example,

\(3^{-2} = \dfrac{1}{3^2} = \dfrac{1}{3\cdot 3} = \dfrac{1}{9}\)

Finally, we can apply this principle to the \(9^{-3}\):

\(9^{-3} = \dfrac{1}{9^3} = \boxed{\dfrac{1}{729}}\)

solve for u, show all work

solve for u, show all work

Answers

Answer:

u = 2\(\sqrt{3}\)

Step-by-step explanation:

using the sine ratio in the right triangle and the exact value

sin60° = \(\frac{\sqrt{3} }{2}\) , then

sin60° = \(\frac{opposite}{hypotenuse}\) = \(\frac{u}{4}\) = \(\frac{\sqrt{3} }{2}\) ( cross- multiply )

2u = 4\(\sqrt{3}\) ( divide both sides by 2 )

u = 2\(\sqrt{3}\)

100 POINTS EZ |

The diagonal of a quadrilateral shaped field is 24 m and the perpendiculars dropped on it from the remaining opposite vertices are 8 m and 13 m. Find the area of the field.

100 POINTS EZ | The diagonal of a quadrilateral shaped field is 24 m and the perpendiculars dropped on

Answers

Area of the quadrilateral=1/2×diagonal×(sum of perpendiculars)

Put the values

Area:-

\(\\ \rm\Rrightarrow \dfrac{1}{2}(24)(8+13)\)

\(\\ \rm\Rrightarrow 12(21)\)

\(\\ \rm\Rrightarrow 252m^2\)

Answer:

Step-by-step explanation:

Divide the quadrilateral field into two triangles by its diagonal.

Area of a triangle is given by the equation 1/2*base*height.

The top triangle's area = 1/2*24*13 = 156 m^2

The bottom triangle's area = 1/2*24*8 = 96 m^2

Combining, the area of the field = 156 + 96 = 252 m^2

TRUE / FALSE.
In the regression \( Y=\beta_{1}+\beta_{2} X+u \), the sample covariance between \( X \) and the ordinary least square residuals is always positive. True False

Answers

Answer:

Step-by-step

3

Find the slope of the line passing through the points 4,9 and 4 ,-5

Answers

Undefined since there is a zero in the rise/run slope equation

Hey there! Can you please help me with 6th grade :-)

Hey there! Can you please help me with 6th grade :-)

Answers

Oh i miss 6th grade im in 7th now lol and yes  but i thank number 2 is 3 cnts

Amelia used 1/7 of an ounce of butter to make 1/4 of a pound of Jello. How many ounces of butter are needed to make 1 pound of Jello

Answers

Answer:

4/7

Step-by-step explanation:

Answer:

4/7 ounces of butter makes a pound of jello

Step-by-step explanation:

7 times 4 is 28, so 4/28 ounces of butter for 7/28 pounds of jello. so 4/28 times 4 is 16/28. 16/28 is our answer, then simplified is 4/7. Thats how we get our answer.

You live in a small town where the population is currently 5000 people.
However, the population is increasing by 20% each year. What will the
population be in the year 2035 if it continues to grow at that rate? Round to
the nearest person. (Hint: It will be 2035 in 15 years.] *

Answers

Answer:

The population of each year is,

20/100 * 5000 = 1000

The population of 15 years is,

1000 * 15 = 15000

The total of 15 plus the 5000 years is,

15000 + 5000 = 20000

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The Mean of a standard normal distribution is always equal to _____
Select one:
a. 0
b. 0.5
c. 1
d. depends on its standard deviation

Answers

The Mean of a standard normal distribution is always equal to 0. This statement is true.

The standard normal distribution is a normal distribution with a mean of zero and a standard deviation of one. The density curve of a standard normal distribution is bell-shaped and symmetric. Its total area under the curve is equal to 1.00.A normal distribution with a mean (µ) of zero and a standard deviation (σ) of one is called a standard normal distribution. Any normal distribution can be converted into a standard normal distribution by using a process known as standardization. Z-score formula is used to find the probability and value associated with any normal distribution.What is a normal distribution?A normal distribution is a statistical term that describes a symmetrical, bell-shaped probability distribution that has a particular mathematical formula. It's used to explain and assess natural phenomena such as height, blood pressure, and intelligence quotient (IQ).A normal distribution is a probability distribution with a bell-shaped curve that is symmetrical. The mean (µ) is the center of the curve, while the standard deviation (σ) determines its width. Most of the values in a standard normal distribution are concentrated within three standard deviations of the mean, as seen in the figure. The standard normal distribution is one of the most often utilized continuous probability distributions in statistical theory.

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