A college lecture hall has 15 rows of seats. The first row has 18 seats the next row has 20 seats, and the third row has 22 seats.

How many seats are in the last row?

Write the rule for the number of seats in the nth row.

Answers

Answer 1

Answer:46, f(n)=2x+16

Step-by-step explanation:

1=0+18

2=2+18

3=4+18

4=6+18

f(n)=2x+16

f(15)=30+16=46


Related Questions

what multiplies to get 27 but adds to get -1

Answers

Answer:

9×3

and

-26

Step-by-step explanation:

9×3=27

27+-26

side length of a cube with a volume of 614cm

Answers

Answer:

just get the cube root of 614

What is 56 divided by 98

Answers

Answer:

0.571428571

Step-by-step explanation:

Simply go into a calculator app and say 56/98

Mr.jones filled his swimming pool with water

Answers

then go and swimand enjoy your holiday

I would like to help you however I think you did not finish writing out the problem.

Convert to - 5/8 to its decimal form using long division. If your answer is a repeating decimal, make sure your decimal goes 5 place values after the decimal or the sequence of numbers that repeat if it is more that five decimal places after the decimal. *

Answers

Answer: 5/8 as a decimal is expressed as 0.625.

Hope it helps!

What 2 numbers have a total of 34 and a difference of 8?​

Answers

Answer:

21 and 13

Step-by-step explanation:

What is the Gcf of the number below

Answers

9514 1404 393

Answer:

  b.  60

Step-by-step explanation:

The list of factors is 2, 3, 5, 7. The list of common factors is 2, 3, 5. The lowest exponents on those factor are ...

  2^2 × 3^1 × 5^1 = 60

The GCF of 720 and 2100 is 60.

_____

Additional comment

You can verify this using Euclid's method of finding the GCF.

  2100/720 = 2 r 660

  720/660 = 1 r 60

  660/60 = 11 r 0 . . . . 60 is the GCF

Find the remainder from the division. If it is zero, the divisor is the GCF. If it is non-zero, replace the largest number with the remainder, and repeat.

Mariel and Liu are running a long-distance race. Mariel runs at a rate of 5.4 m/s, and Liu runs at a rate of 7.6 m/s. If Mariel has a 20 m head start, how long will it take for Liu to catch Mariel?

Answers

We have that, how long it will take for Liu to catch Mariel is mathematically given as

t=3.076s

From the question we are told

Mariel and Liu are running a long-distance race. Mariel runs at a rate of 5.4 m/s, and Liu runs at a rate of 7.6 m/s. If Mariel has a 20 m head start, how long will it take for Liu to catch Mariel?

Generally the equation for the Average speed is  mathematically given as

[tex]v_a=\frac{5.4+7.6}{2}\\\\V_a=6.5m/s[/tex]

Therefore

How long it will take for Liu to catch Mariel is mathematically given as

[tex]t=\frac{20}{6.5}[/tex]

t=3.076s

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Question 10 of 10
Simplify 43.45
A. 168
B. 16.15
C. 48
O O
D. 415
SUBMIT

Answers

Answer:

C

Step-by-step explanation:

4^3 x 4^5 =4^8

You add the exponents together because they have the same base and it's multiplication sum.

3 out of 100 is what percentage?

A 3%
B 30%
C 18%
D 100%

Answers

Answer:A 3%

Step-by-step explanation:

A decimal that is 1/10 of 3.0

Answers

0.3 I believe



I hope this helped (:

Two cyclists start at the same point and travel in opposite directions. One cyclist travels 4 km/h slower than the other. If the two cyclists are 120 kilometers apart after 2 hours, what is the rate of each cyclist?

Answers

Cyclist 1 = 26km/h. Cyclist 2 = 34km/h. Explanation: One cyclist is 4km/h faster and we know that they are 120 km apart in 2 hours so 4 x 2 = 8 more km in 2 hours. 52 km + 68 km = 120 km. 52/2 = 26km/h. 68/2 = 34km/h

I am super confused about my stats homework. Every time I get the question wrong, it gives me a new set of numbers. Help!

Answers

hi! if you’re taking a quiz, from what i’ve experienced, the numbers will change every time you retake the question. this helps you to understand HOW to get the answer, rather than just memorising it. from there you just need to work out how to do the maths that’s presented to you. i hope this helps!

An amount increased by 10% to 517.
What was the original amount?​

Answers

Answer:

470

Step-by-step explanation:

x is the amount that represents 100 %

517 amount that represents 100%+10% increase = 110%

x = (517 *100) / 110 = 470 is the original amount

7x^2-4+6x^3-4x-x^4 in standard form?

Answers

Answer:

-x^4 + 6x^3 + 7x^2 -4x -4      

Step-by-step explanation:

= -(x+1)(x^3-7x^+4 / factor the expression

Does the graph represent a function that has an inverse function​

Answers

9514 1404 393

Answer:

  No

Step-by-step explanation:

A horizontal line can be drawn that intersects the graph in more than one place. That means the graph fails the "horizontal line test" and does not have an inverse function.

(The horizontal line shown intersects in 3 places.)

what is the value of the function when x = 0? ​

Answers

Answer:

f(0) = -2.

Step-by-step explanation:

This question pertains to the y-intercept. By definition, the y-intercept is the point on the graph where it crosses the y-axis, and has coordinates, (0, b). It is also the value of y when x = 0.  Looking at the graph, the point where the line crosses the y-axis is (0, -2). The y-coordinate is the y-intercept, b.

Therefore, the value of the function when x = 0 is: f(0) = -2.

Mr. Korhonen use 1/8 of a cup of laundry detergent when he does a load wash how many cups will have need to do 4 loads

Answers

That would be 8 x 4. The amount of cups used is 32.

Just need someone to clarify things with me!

As I was solving this equation, I got:

x^-2
-------
x^10

I moved x^-2 down with x^10

So in x^-2's place, I placed a positive 1.

1
----------------------
x^10 times x^-2

The radical rule here is to pretty much subtract ahead. However, this extremely smart person said something like if I move a negative number to the denominator, it becomes positive. However, in this case, x^-2 stays the same.

Anyone explain here??

Answers

103837174817471949173728194

Answer:

[tex]\frac{1}{x^{12} }[/tex]

Step-by-step explanation:

Given [tex](\frac{x}{x^{-5}})^{-2}[/tex]

The Negative Exponent Rule states that, [tex]a^{-n} = \frac{1}{a^{n}}[/tex]

Basically, since you're raising the fraction inside the parenthesis to a negative exponent, the whole fraction becomes a denominator of 1:  [tex]\frac{1}{(\frac{x}{x^{-5}})^{2}}[/tex]

Then, you'll have to work on the denominator:

[tex]\frac{1}{(\frac{x}{x^{-5}})^{2}} = \frac{1}{\frac{x^{2} }{(x^{-5})^{2}}}[/tex]  

Next, you'll have to work on the divisor of x² (in the denominator), [tex](x^{-5})^{2}[/tex] by using the Power-to-Power Rule of Exponents: [tex](a^{m})^{n} = a^{mn}[/tex], which results in:

[tex](x^{-5})^{2} = x^{-10}[/tex]

Since it is a negative exponent, you'll have to apply the Negative Exponent Rule once again to the denominator.

[tex]\frac{1}{(\frac{x}{x^{-5}})^{2}} = \frac{1}{\frac{x^{2} }{(x^{-5})^{2}}} = \frac{1}{\frac{x^{2} }{x^{-10}}} = \frac{1}{\frac{x^{2} }{\frac{1}{x^{10}}}}[/tex]    

At this point, you could apply the Fraction rule onto the denominator: [tex]\frac{a}{\frac{b}{c}} = \frac{a*c}{b}[/tex]

So the denominator now becomes:

[tex]\frac{1}{\frac{x^{2} }{\frac{1}{x^{10}}}} = \frac{1}{x^{2}*x^{10} }[/tex]

Finally, you could apply the Product Rule of Exponents, [tex]a^{m}a^{n} = a^{m + n }[/tex] onto the denominator:

   [tex]\frac{1}{x^{2}*x^{10} } = \frac{1}{x^{2+10}} = \frac{1}{x^{12} }[/tex]

Therefore, the correct answer is: [tex]\frac{1}{x^{12} }[/tex]

Find a10, for the geometric sequence an = 3(4)^n-1.
A. 262,144
B. 786,432
C. 1,048,579
D. 3,145,728

Answers

The answer is A I think

At what values of the variable a is the value of the expression a (a + 5) greater than the value of the expression a (a - 4)?

Answers

Answer:

every number that is less than -1

Step-by-step explanation:


Equivalent fractions

Answers

Answer: Like 1/3=2/6 and 2/3=4/6, 1/4=2/8 then 3/4=6/8.

Step-by-step explanation: Hope this help. hit me up if u need some more help

Answer:

1) 1/2 = 18/36 = 9/18 = 8/16 = 21/42 = 24/48

2) 5/6 = 40/48 = 10/12 = 25/30 = 15/18 = 20/24

3) 1/3 = 3/9 = 9/27 = 30/90 = 2/6 = 4/12

4) 3/4 = 18/24 = 12/16 = 6/8 = 15/20 = 27/36

5) 4/9 = 8/18 = 20/45 = 16/36 = 24/54 = 12/27

Step-by-step explanation:

The main explaination for this is to take your denominator -- your bottom number of the fraction -- and divide it by the denominator to which you're trying to compare it to. Multiply your numerator to the compared to find your full fraction.

For example, say the fraction is 1/2. You're trying to figure out it's equivalent through the pair _/100. Take your 100 and divide it by 2, your other denominator, which leaves you with 50. Take the 50 and multiply it by the compared numirator to find your full fraction, which in this case is 50/100.

Hopes this helps you!

The list shows the thicknesses of several different types of art paper.
Thickness
(cm)
0.004
0.007
0.011
0.011
0.012
0.020
0.200
0.214
What is the range of this set of data?
O A. 0.055
OB. 0.210
OC. 0.214
OD. 0.218
O E. 0.498
Y

Answers

Answer:

B. 0.210

Step-by-step explanation:

Range is the minimum value subtracted from the maximum value. In this case 0.004 is the smallest value and 0.214 is the largest.

Range = 0.214 - 0.004 = 0.210 = B

The range set of the given data is 0.21.

The given data sets are,

0.004

0.007

0.011

0.011

0.012

0.020

0.200

0.214

We know that,

In statistics, the range is the difference between the highest and lowest values for a given data collection.

For instance,

if the given data set is 2,5,8,10,3, the range is 10 - 2 = 8.

As a result, the range can also be defined as the difference between the highest and lowest observations.

The range of observation is the name given to the outcome. In statistics, the range indicates the dispersion of observations.

Now to find the range set pf the given data,

Subtract minimum value to maximum value

Since maximum value = 0.214

And minimum value     = 0.004

Then range set = 0.214 - 0.004

                          =  0.21

Thus, range of set  ⇒ 0.21

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What is 1/4 of 160 calories?

Answers

Answer:

0.4

Step-by-step explanation:

1/4 x 160 / 100

Answer:40 if im right

Step-by-step explanation:

When i do it i ush do it in ÷ so 160 ÷ 1/4th

HELLLPPPPP PLSSSSSS
Why do you have to use the quadratic formula for the following instead of factoring?
x^2 - 12x - 20 = 0

Answers

Answer:

There are no factor that you can find that when two factors are multiply together your get a product of -20 and when you add then you get -12

Step-by-step explanation:

The owner invested 18,400 in the company in exchange for its common stock. The company purchased 1,350 cash in supplies. The owner invested 11,700 of equipment for more common stock. The company purchased 370 of additional supplies on credit. The company purchased land for 10,700 cash

Answers

Answer:

Total expenses: $34,520

Money needed for profit: $34521

Is this a good idea: Not unless he is prepared for it to go under...

Step-by-step explanation:

for questions 4 use the graph provided.

PLEASE HELP.

Answers

Step-by-step explanation:

according to the drawing:

the first domain : -1≤ x ≤ 0

the second domain : 0< x < oo

the total domain : [-1, oo)

the first range : 0 ≤ y ≤ 1

the second range : -1< y < oo

the total range : [0, oo)

so, the correct answer is

a. Domain: [-1, oo) Range : [0, oo)

Domain:-

Set of x values

Here

This is a piecewise function

So domain is

[-1,0]U(1,oo)[-1,oo)

Range:-

Set of y values

Here thats

[0,1]U[1,oo)[0,oo)

Use the distributive property to write an equivalent expression to -4(p+ 4) that
has no grouping symbols.
please help

Answers

Answer:

-4p-16

Step-by-step explanation:

Patrick's gross earnings for the week are $1592.45. His deductions comprise 26% of his total compensation. What is his net pay? Enter your answer rounded to the nearest cent, such as: $4253.64.

Answers

Pretty sure it’s $1560.60

Patrick's net income will be equal to $1178.41.

What is the percentage?

The Percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.

Given that Patrick's gross earnings for the week are $1592.45. His deductions comprise 26% of his total compensation.

Patrick's net income will be calculated as below:-

26% of $1592.45 = 1592.45 x ( 26 / 100 ) = 414.037

Subtract the deduction from the gross amount:-

Net income = 1592.45 - 414.037 = $1178.41

Therefore, Patrick's net income will be equal to $1178.41.

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t=(m+b)x solve for x

Answers

Answer:

[tex]x=\frac{t}{m+b}[/tex]

Step-by-step explanation:

T = (m + b)x

Divide both side by (m + b):

[tex]\frac{T}{(m+b)} =\frac{(m+b)x}{(m+b)}[/tex]

Cancel out (m + b) and you have your answer!

Hope this helped. A brainliest would be very much appreciated. (I need 4 brainliest so I can level up) :)

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