please helppp The correct equation is S=2r+7 verify this equation matches your table for r=1 r=2 and r=3

Please Helppp The Correct Equation Is S=2r+7 Verify This Equation Matches Your Table For R=1 R=2 And
Please Helppp The Correct Equation Is S=2r+7 Verify This Equation Matches Your Table For R=1 R=2 And

Answers

Answer 1

Answer:

Step-by-step explanation:

Part (A).

Row                Number of seats

1                                 9

2                                11

3                                13

4                                15

5                                17

6                                19

7                                21

(B). Jonathan models the equation for the pattern of number of seats as,

S = 7r + 2

Where S = number of seats in every row 'r'

For r = 1,

S = 7(1) + 2 = 9

Models for row 1.

For r = 2,

S = 7(2) + 2 = 16

Not correct.

For r = 3,

S = 7(3) + 2 = 23

Not correct.

Therefore, this equation doesn't work for the rows above the first row.

(C). Correct equation is,

S = 2r +7

For r = 1,

S = 9

For r = 2,

S = 4 + 7 = 11

For r = 3,

S = 6 + 7 = 13

Therefore, this equation works for all the rows.

(D). Number of seats in 15th row = 2(15) + 7 = 37 (For r = 15)

(E). 91 = 2r + 7

     2r = 91 - 7

     2r = 84

       r = 42

Therefore, in 42nd row number of seats = 91


Related Questions

K Co. is a publicly listed company involved in the production of highly technical and sophisticated electronic components for complex machinery. It has a number of diverse and popular products, an active research and development department, significant cash reserves and a highly talented management who are very good in getting products to market quickly. A new industry that K Co. is looking to venture into is biotechnology, which has been expanding rapidly and there are strong indications that this recent growth is set to continue. However, K Co. has limited experience in this industry. Therefore, it believes that the best and quickest way to expand would be through acquiring a company already operating in this industry sector. Discussions taken place about the possibility of acquiring Tee Co. being acquired by K Co. Price of Tee company in stock market during last one year are as follows.

Answers

This question is incomplete, the complete question is;

K Co. is a publicly listed company involved in the production of highly technical and sophisticated electronic components for complex machinery. It has a number of diverse and popular products, an active research and development department, significant cash reserves and a highly talented management who are very good in getting products to market quickly.

A new industry that K Co. is looking to venture into is biotechnology, which has been expanding rapidly and there are strong indications that this recent growth is set to continue. However, K Co. has limited experience in this industry. Therefore, it believes that the best and quickest way to expand would be through acquiring a company already operating in this industry sector.

Discussions taken place about the possibility of acquiring Tee Co. being acquired by K Co. Price of Tee company in stock market during last one year are as follows.

Price at the end of month

Month  Month end Price    KSE 100 INDEX

Jan          175                         32600

Feb        185                         33900

March     152                         33500

April        190                         34000

May        195                          33500

June       188                          33800

July        190                           33700

Aug        195                           33200

Sep        190                           32900

Oct         185                           33100

Nov        190                           33900

Dec        88                             34100

a) Calculate average return for both stock and market

b) Calculate Standard deviation for both

c) Calculate coefficient of variation for both

d) Calculate Beta of stock

Answer:

a) AVERAGE RETURN =  -3.69%,  0.42%

b) STANDARD DEVIATION = 19.38%, 1.74%

c) COEFF OF VARIATION = -5.2562, 4.1035

d) BETA  = 1.89

Step-by-step explanation:

Month     Month-end-Price     RETURN     KSE-100-INDEX     RETURN  

Jan          175                                                  32600    

Feb          185                            5.71%            33900                 3.99%  

March      152                           -17.84%         33500              -1.18%  

April         190                            25.00%        34000                  1.49%  

May          195                            2.63%           33500                 -1.47%  

June         188                            -3.59%          33800                 0.90%  

July           190                            1.06%           33700                 -0.30%  

Aug           195                            2.63%           33200                 -1.48%  

Sep            190                           -2.56%          32900                -0.90%  

Oct             185                           -2.63%          33100                   0.61%  

Nov            190                            2.70%           33900                 2.42%  

Dec            88                             -53.68%         34100                0.59%  

AVERAGE   -3.69%                                             0.42%                         =MEAN

RETURN

STANDARD 19.38%                                              1.74%         =STDDEV

DEVIATION

COEFF OF   -5.2562                                            4.1035                =STD/MEAN

VARIATION                                                                                            

VARIANCE      3.76%                                               0.03%                         =VAR

COVARIANCE    0.000569039                                                            =COVAR

BETA                    1.89                          =COVAR / VARIANCE (KSE 100 INDEX)

A scale drawing of a lake has a scale of 1 cm to 80 m. If the actual width of the lake is 1,000 m, what is the width of the lake on the scale drawing? Explain or show your reasoning.

Answers

Answer: 12.5 cm

Step-by-step explanation:

Equation would be:

1:80

?:1000

So you'll just have the cross multiply the equation above to find ? ( scale drawing lake). It'll be 1000*1/80 which will be 12.5 cm.

                               

The width of the lake on the  scale drawing is 12.50 cm

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

The scale drawing is usually reduced at a constant dimension

Dimension of the scale drawing = original dimensions / scale of the drawing

The scale is 1 cm to 80m

Thus, the width of the lake on the  drawing = 1000 / 80 = 12.50cm

To learn more about scale drawing, please check: https://brainly.com/question/1175428?referrer=searchResults

I need help on. this question. (3x^6)^3 the answer must have one exponent

Answers

Answer:

[tex]27x^{18}[/tex]

Step-by-step explanation:

[tex]\left(3x^6\right)^3[/tex]

Separate [tex]3x^6[/tex]:

[tex]3^3\times\left(x^6\right)^3[/tex]

[tex]27\times\left(x^6\right)^3[/tex]

[tex]27x^{6\times3}[/tex]

[tex]27x^{18}[/tex]



Complete the equation describing how

x and y are related.

-1

0

1

2.

3

y

-4

-4.5

-5

-5.5

-6

-6.5

y = -0.5x + [?]

Answers

Answer:

The relationship between x and y is;

y = -0.5x - 4.5

Step-by-step explanation:

When x = -1, y = -4.

Thus from y = -0.5x + [?], we have;

-4 = -0.5(-1) + [?]

Let's call the question mark m for easy identification.

-4 = 0.5 + m

m = -4 - 0.5

m = - 4.5

At x = 0, y = - 4.5. Thus;

-4.5 = - 0.5(0) + m

m = -4.5

At x = 1, y = -5. Thus;

-5 = - 0.5(1) + m

-5 = - 0.5 + m

-5 + 0.5 = m

m = -4.5

We are seeing the same patter as m = - 4.5

Thus the relationship between x and y is;

y = -0.5x - 4.5

Help please !!!
Write the equation of the line if the line passes through (4,4) and the y-intercepts is -4

Answers

The equation for this line would be y=2x-4

I need the answer to this with the steps, that’d help me out so much thank you❤️.

Answers

Answer: The dimensions of the frame:.

W= 2√10 or about 6.3245 inches

L= 4√10 or about 12.6491 inches

Step-by-step explanation:

This would be so much easier if the area of the box was 72. Then the dimensions of the frame would be 6 × 12. So just a little bit larger and more complicated.

Here the equation is w(2w)=80

2w^2 = 80 (2w is easier to work with than L/2).

w^2=40 (^2 means squared)

√w^2 = √40 square root of both sides: Factor 40. Take out√4

W = √4*10

W= 2√10

L= 2w = 4√10

6.3245 × 12.6491 = 80

Which expressions are equivalent to the given expression?

Answers

Answer: 1/ x^2y^5 or the third option from the top

Step-by-step explanation:

-19a = -174.8
Solve equation

Answers

Answer: a = 9.2

Step-by-step explanation: -174.8/-19 = 9.2

Answer:

21

Step-by-step explanation:

21

What is the probability of spinning a 2 on the
spinner?

Answers

Answer:

a 1/8 chance (one out of eight, one eighth, whatever)

Step-by-step explanation:

It’s a 1/8 chance (1 out of 8) if yhu didn’t know.

20+8(x-11)=-12 answer and how to solve it?

Answers

Answer: x=7

Step-by-step explanation:

To solve for x, you want to use algebraic properties.

20+8(x-11)=-12                  [distribute]

20+8x-88=-12                   [combine like terms]

8x-68=-12                          [add both sides by 68]

8x=56                                [divide both sides by 8]

x=7

Now we know that x=7.

A road map is drawn to the scale of 1 inch equals 20 miles. How far apart in miles are two towns which are 2 1/2 inches apart on the map?

Answers

50

Step-by-step explanation:

You set this up with a ratio,  1:20 or 1 equals 20 miles.   So i'm multiplying by 20 regardless.   Now I have 2 and a half inches or you can say 2.5.  Multiply 2.5 (on paper..) and 20 and there you go.    20 times 2 equals 40 and 20 times a half is 10, 40 + 10= 50.  

It takes Dariya 35 seconds to download 5 songs from the Internet. How can the number of seconds it would take Dariya to download 7 songs at this rate be determined? ( need help )

By dividing 35 by 7.

By multiplying 35 by 7.

By finding the unit rate and dividing it by 7.

By finding the unit rate and multiplying it by 7.

Answers

answer is shown in photo. Best of luck

To determine the number of seconds it would take Dariya to download  7 songs at the same rate, we first find the unit rate and multiply it by 7.

Hence, option 4. By finding the unit rate and multiplying it by 7 is the right option.

Unit Rate = 7second/song.

Time to download 7 songs = 49 seconds.

What do we mean by unit rate?

A unit rate is a quantity taken for a unit of another quantity.

How do we solve the given question?

We are given that it takes Dariya 35 seconds to download 5 songs from the Internet. We are asked about the time it will take Dariya to download y songs at the same rate.

We will first determine the unit rate of the time taken for downloading a song.

5 songs take 35 seconds.

∴ 1 song takes 35/5 = 7 seconds.

Unit rate is 7seconds/song.

Now to determine the time for downloading 7 songs, we multiply the unit rate by 7.

∴ Time taken to download 7 songs = 7 songs * unit rate

or, Time taken to download 7 songs = 7 songs * 7 second/song

or, Time taken to download 7 songs = 49 seconds.

∴ To determine the number of seconds it would take Dariya to download  7 songs at the same rate, we first find the unit rate and multiply it by 7.

Hence, option 4. By finding the unit rate and multiplying it by 7 is the right option.

Learn more about the unit rate at

https://brainly.com/question/620388

#SPJ2

Solve for x x-23=17

a -40
b 40
c -6 d 6

Answers

Answer: It is B - 40

Step-by-step explanation:

40-23 = 17

Answer:

40

Step-by-step explanation:

x-23 =17

x=17 +23

x=40

Look at this equation. 2t = 10 Solve for t. Which of the following can you use to make sure your answer is correct? Question 2 options: Substitute 2 for t in the equation t = 5. Substitute 5 for t in the equation t = 5. Substitute 5 for t in the equation 2t = 10. Substitute 2 for t in the equation 2t = 10.

Answers

Answer:

Substitute 5 for t in the equation 2t = 10.

Step-by-step explanation:

2t = 10

t = 10/2

t = 5

Substitute 5 for t in the equation 2t = 10.

The solution for the equation 2t = 10 is t = 5.

This can be made sure by "Substitute 5 for t in the equation 2t = 10".

Given an equation:

2t = 10

The equation has to be solved and find the value of t.

Divide both sides of the equation by 2.

t = 10/2

 = 5

Now, the value of t = 5, which is the solution of the equation 2t = 10.

So, in order to check the correctness of the solution, substitute the solution for the value of t into the original equation, 2t = 10.

Hence the solution is t = 5, and the option to check it is c.

Learn more about Equations here :

https://brainly.com/question/29657983

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Given that f(x)= k/x+1 + 6/x+2 and f(5)=8, Find the value of k.

Answers

Answer: [tex]k=\frac{300}{7}[/tex]

Step-by-step explanation:

Since we know that f(5)=8, we can plug in x=5 and set that equal to 8 to find k.

[tex]8=\frac{k}{5+1} +\frac{6}{5+2}[/tex]              [add denominator]

[tex]8=\frac{k}{6} +\frac{6}{7}[/tex]                     [get common denominator]

[tex]8=\frac{7k}{42} +\frac{36}{42}[/tex]                  [add]

[tex]8=\frac{7k+36}{42}[/tex]                     [multiply both sides by 42]

[tex]336=7k+36[/tex]              [subtract both sides by 36]

[tex]300=7k[/tex]                      [divide both sides by 7]

[tex]k=\frac{300}{7}[/tex]

Now, we know that [tex]k=\frac{300}{7}[/tex].

help me please i need help

Answers

Answer: x=y/(3b-7)

Step-by-step explanation:

To solve for v, you want to use algebraic properties to isolate x.

y=3bx-7x                [factor out x]

y=x(3b-7)                [divide both sides by 3b-7]

x=y/(3b-7)

Now, we know that x=y/(3b-7).

Answer:

3bx -7x = y

or, x(3b -7) = y

or, x= y/(3b -7)

What number is 7 unit to the leaft of -1

Answers

Answer:

-8

Step-by-step explanation:

Since its going left I’m assuming it means negative. So you’re adding -7 to -1.

That gives you -8.

PLEASE HELP A cylinder with radius 6 feet and height 6 feet has its radius doubled. How many times greater is the volume of the larger cylinder than the smaller​ cylinder? How many times greater is the volume of the larger cylinder than the smaller​ cylinder?

Answers

Answer:

16 Times Greater

Step-by-step explanation:

Smaller cylinder:

radius = 6 inches

height = 8 inches

area = (pi)r^2h

area = (3.14)6^2(8)

radius = 24 inches

height = 8 inches

area = (pi)r^2h

area = (3.14)24^2(8)

.

[(3.14)6^2(8)] / [(3.14)24^2(8)]

[6^2(8)] / [24^2(8)]

[6^2] / [24^2]

[36] / [576]

16 times greater

Answer:

Step-by-step explanation:

Smaller cylinder:

h = 6 ft

r = 6 ft

Volume of smaller cylinder = πr²h

                                             = π * 6 * 6 * 6 cubic ft

Bigger cylinder:

r = 6 * 2 = 12 ft

h = 6 ft

Volume of bigger cylinder = π * 12 * 12 * 6 cubic ft

Volume of bigger cylinder = π * 12 * 12 * 6

Volume of smaller cylinder    π * 6 * 6 * 6

                                           = [tex]\frac{2 * 2}{1*1}\\[/tex]

                                           = 4 : 1

The volume of greater cylinder is 4 times than the smaller cylinder.

Graph 5x + 3y = 15 on a graph ​

Answers

You need to find the equation of y=Mx+b

Answer is y=-5/3x+5

Brainliest?

Which figure is described below?

Answers

Answer:

Answer option "A" : line.

Step-by-step explanation:

The trace formed by the collection of all points equidistant from (-5, -6) and (-5, 7) describe a horizontal line with equation y = 1/2.

Therefore the answer option "A" is the correct one.

What is the lowest value of the range of the function
shown on the graph?

Answers

Answer:

2

Step-by-step explanation:

2

A beverage company operates two factories. Their outputs are represented by these expressions, where b is the number of bottles produce
Factory A: 2b3 – 3b2 + b - 120
Factory B: 4b2 – 3b – 260
Which polynomial represents the company's total output?
A. 6b3 – 3b2 - 3b - 140
B. 2b3 - 7b2 + 4b + 140
C 2b3 + b2 - 2b - 380
D. 6b3 – 6b2 + b + 380

Answers

Answer:

C 2b3 + b2 - 2b - 380

Step-by-step explanation:

Given:

Factory A: 2b^3 – 3b^2 + b - 120

Factory B: 4b^2 – 3b – 260

The company's total output = factory A + factory B

= (2b^3 – 3b^2 + b - 120) + (4b^2 – 3b – 260)

= 2b^3 – 3b^2 + b - 120 + 4b^2 – 3b – 260

Collect like terms

= 2b^3 – 3b^2 + 4b^2 – 3b + b - 120 - 260

= 2b^3 + b^2 - 2b - 380

C. 2b^3 + b^2 - 2b - 380

Option C is the correct answer

Answer: C) 2b^3+b^2-2b-380

Step-by-step explanation:

I had this question on a recent test and got it right

Hope this helps! :)

Can someone help me with 4?

Answers

Answer:

ok so the answer is 343

Step-by-step explanation:

so for 4) you first use PEMDAS(Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction), and you do what's in the parenthesis first, so 7^4= 2401, that is inside the parenthesis, next you do the exponent outside the parenthesis, so is (2401)^2=5764801, and then you divide the 7^5=16807, so it looks like 5764801/16807=343

hope it helps

Answer:

The Answer is 343.

Step-by-step explanation:

First- We do the parenthesis first according to PEMDAS which is 7 x 7 x 7 x 7 equals 2401.

Next- We do 2401 x 2401 which equals 5764801.

Then- We do the bottom exponent which is 7 x 7 x 7 x 7 x 7 equals 16807.

Last- We divide 5764801 by 16807 and we get 343.

Hope this helps!

Please answer this question

Answers

Answer:

I think it would be B but im not completly sure.

An isosceles triangle two sides equal is placed on top of the square as shown in the picture if the two equal sides are 22 ft long and each side is 39 ft

Answers

Answer:

what we have to find , please complete the question

A student has some​ $1 and​ $5 bills in his wallet. He has a total of 14 bills that are worth ​50$. How many of each type of bill does he​ have?

Answers

Answer:

3.5$

Step-by-step explanation:

Nine 5's and five 1's. Nine five-dollar bills hit $45 dollars, and the remaining $5 can only be paid in 1's to reach 14 bills.

parallel to y = 3x – 1 and passes through the point ( – 4, – 11)

Answers

If the line is parallel, you know it’s going to have the same slope, which in this case is 3

Using the format y= mx + b, plug in your x and y values to find b (m is the slope)
-11 = 3(-4) + b
-11= -12 + b
b = 1

You now have all the needed values to write the equation in slope-intercept form:

y = 3x + 1



Divide 2.9 x 107 by 6.9 x 103 by using scientific notation. Round your answer to one decimal place in scientific notation with no spaces

Answers

I think it’s 85 if I’m wrong Im really sorry

A serving of small frozen casserole is 1/3 of the pan. If you eat 1/4 of the pan, what fraction of a serving have you eaten

Answers

Answer:

If the portion of frozen casserole occupies 1/3 of the pan, it can be affirmed that it occupies 0.333 of it. Thus, if someone eats 1/4 of the pan, it could be stated that they are eating 0.25 of it.

Therefore, to determine the fraction of the portion that has been eaten, the following calculation must be performed:

33 = 100

25 = X

(25 x 100) / 33 = X

2500/33 = X

75.75 = X

25/33 = X

Therefore, the fraction of the serving that was eaten is 25/33, or 76% of the serving.

If you run a 10 km race in 43 minutes 30 seconds, what is your average time per mile? What is your average speed in mph? Hint: there are 1.61 km in a mile.

Answers

Answer:

Your Average Speed was 8.57057285 mph.

Step-by-step explanation:

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