Identify the type of sequence shown in the table below and select the appropriate response. n f(n) 1 540 2 500 3 460 4 420 5 380 arithmetic sequence; common difference is −40 arithmetic sequence; common difference is 40 geometric sequence; common ratio is −40 geometric sequence; common ratio is 40

Answers

Answer 1

Answer:

arithmetic sequence; common difference is −40

Step-by-step explanation:

An arithmetic sequence is a sequence in which each term is found by adding a constant, called the common difference, to each previous term.

In this sequence, we go from 540 to 500 to 460, etc.  Each time we are subtracting 40.  This is the same as adding -40; this makes the sequence arithmetic.

Answer 2

The common difference of the arithmetic sequence will be negative 40. Then the correct option is A.

What is an arithmetic sequence?

A series of integers called an arithmetic succession or arithmetic chain of events has a fixed difference between the terms.

Let a₁ be the first term and d be a common difference.

Then the nth term of the arithmetic sequence is given as,

aₙ = a₁ + (n - 1)d

The table is given below.

 n     f(n)

 1     540

2     500

3     460

4     420

5     380

The first term is 540 and the common difference of the arithmetic sequence is given as,

d = 500 - 540

d = - 40

The common difference of the arithmetic sequence will be negative 40. Then the correct option is A.

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Related Questions

kelly ran 2 miles and burned 240 calories. the next day she ran 3 miles and burned 360 calories. the next day4 miles and 480 miles. if this pattern continues, how
many calories will she burn if she runs 8 miles?

Answers

Kelly burns 120 calories per every mile she runs ( 240/2 = 120, 360/3 = 120, etc.).

120 calories x 8 miles = 960 calories

Kelly will burn 960 calories if she runs 8 miles.

Answer:

She will burn 960 calories if she runs 8 miles

Which algebraic expression represent the phrase “ seven more than half of a number”?

Answers

[tex] \frac{1}{2}n[/tex] + 7

Hope this helps =)

Answer:

The given expression “ seven more than half of a number” can be written mathematically as [tex]7+\frac{1}{2}N[/tex]

Step-by-step explanation:

Given phrase “ seven more than half of a number”

We have to write the algebraic expression for the given phase.

Algebraic expression is the  way of writing an expression in mathematical form using mathematical operations and variables.

Consider the given phrase “ seven more than half of a number”

Let the number be N,

Then half of number is [tex]\frac{1}{2}N[/tex]

and seven more means seven is added to this, the expresion becomes [tex]7+\frac{1}{2}N[/tex]

Thus, the given expression “ seven more than half of a number” can be written mathematically as [tex]7+\frac{1}{2}N[/tex]

1. Sarah bought a mango tree that grows 4 cm each day. It was 10 cm tall when she bought it and now it is 82 cm. Write an equation to express the growth of this tree. Let "x" represent the number of days Sarah has owned the tree.

2. How many days has Sarah owned the tree?

Answers

82 = 4x-10

72 = 4x
x = 72/4
x = 18

she owned it for 18 days
1. 4x+10=82

2. 18 days

Graph y= 1/3x+3 .I just need to know the plots

Answers

Answer:

The graph shows the given straight line.    

Step-by-step explanation:

We are given an equation:

[tex]y = \displaystyle\frac{1}{3}x + 3[/tex]

The attached image shows the graphical plot for the given equation.

If we compare the given equation to the

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

where m is the slope and c is the y-intercept of the straight line.

Comparing, we get:

[tex]m = \displaystyle\frac{1}{3}\\\\c = 3[/tex]

The line will pass by the points (-3, 2), (0, 3), and (3, 4)

Given is an equation y = x/3+3 we need to graph it,

Let's pick a few x-values and determine the y-values that go with them:

Y equals (1/3) when x = -3(-3) + 3 = -1 + 3 = 2

Y = (1/3)(0) + 3 = 0 + 3 = 3 when x = 0.

Y = (1/3)(3) + 3 = 1 + 3 = 4 for x = 3.

The points (-3, 2), (0, 3), and (3, 4) can now be plotted on the coordinate plane.

A straight line running across these locations will form the graph.

The line will have a positive slope because the value of x is positive (1/3).

Given that the y-intercept is 3, the line will cross the y-axis at (0, 3).

The plotted points (-3, 2), (0, 3), and (3, 4) lie on the line, and the line continues indefinitely in both directions.

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Mr Savage used 3 gallons of paint to cover 1,350 square feet of wall space. At this rate, how much paint will be needed to cover 1,800 square feet

Answers


This problem is solved using a rule of three

we know that
Mr Savage used 3 gallons of paint to cover-------------->  1,350 square feet
X--------------------------------------------------------------------> 1,800 square feet
X=1800*3/1350=4 gallons

the answer is 4 gallons

Please help me solve for r

Answers

Add the opposite of any terms that don't have r.
.. K +7s = 4r

Divide by the coefficient of r.
.. (K +7s)/4 = r

Willem bought a jacket on sale. the price was 40% off the original price of $60. how much did he pay? answer

Answers

60 * 0.4  = $24
60 - 24 = $36
He paid 36 dollars. 
Hello!

"40% off" means they're offering a discount on the jacket, so Willem eill be saving money.

To calculate how much Willem will pay after the discount, we must first find and subtract the discount from the cost of the jacket.

60 × 40% (or 0.40) = 24

Subtract this:

60 - 24 = 36

ANSWER:

Willem paid $36.00 for the jacket.

PLEASE HELP ME!!!!!!!!!

Answers

The answer is “The speed of a car increases Constantly by 10 miles” and “The radioactivity of a substance decreases by 10 every year” last one is “ The amount of money in an account decreases for a few months and then increases”

Hope that helped! :)

Use the quadratic formula to solve for the roots of the following equation. x 2 – 4x + 13 = 0

Answers

By using the quadratic formula, the roots of the equation are,

⇒ x = 2 ± (√3/2) i

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The quadratic equation is,

⇒ x² - 4x + 13 = 0

Now, By using the quadratic formula, the roots of the equation are,

⇒ x² - 4x + 13 = 0

⇒ x = - (- 4) ± √ (- 4)² - 4×1×13 / 2

⇒ x = 4 ± √16 - 52 / 2

⇒ x = 4 ± √- 36 / 2

⇒ x = 4 ± √6 i / 2

⇒ x = 2 ± (√3/2) i

Thus, We get;

⇒ x = 2 ± (√3/2) i

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Final answer:

The roots of the quadratic equation x² - 4x + 13 = 0 are complex numbers, specifically 2 + 3i and 2 - 3i, obtained through applying the quadratic formula.

Explanation:

To solve the quadratic equation x² – 4x + 13 = 0 using the quadratic formula, we first identify a, b, and c from the equation. Here, a=1, b=-4, and c=13. The quadratic formula is ‘x' equals minus ‘b’, plus-or-minus the square root of ‘b’ squared minus four ‘a’ ‘c', all over two 'a'. Applying these values, we get:

x = – (-4) ± √((-4)² – 4(1)(13)) / (2)(1)

This simplifies to:

x = 4 ± √(16 – 52) / 2

x = 4 ± √(-36) / 2

Since the square root of -36 is 6i (where i is the imaginary unit √(-1)), the solutions are:

x = (4 ± 6i) / 2

x = 2 ± 3i

Therefore, the roots of the equation are 2 + 3i and 2 - 3i, which are complex numbers.

2.1 + (–3.7h) + 1.9h – 1.4

Answers

-1.8h-0.7 You combine like terms. 
To solve for h, we need to simplify.

2.1 - 3.7h + 1.9h - 1.4 = 0
0.7 - 1.8h = 0
1.8h = 0.7
h = 0.38888....

Which explains how to determine 40% of 50?

Answers

Multiply 50 by .4 or .40. Both give the same answer, which is 20.

The school cafeteria has two meal options in the main line today: a grilled chicken sandwich or a spicy fried chicken sandwich one lunch period, 60 people order the grilled chicken sandwich, and 90 people order the spicy fried chicken sandwich. 40 of the eople who ordered the grilled chicken sandwich got a chocolate mitk to drink. If the sandwich choice and the drink choice are independent, how many of the people who ordered the spicy fried chicken sandwich got a chocolate milk?

Answers

Answer:

60 of the people who ordered the spicy fried chicken sandwich got a chocolate milk.

Step-by-step explanation:

Consider the provided information.

60 people order the grilled chicken sandwich, and 90 people order the spicy fried chicken sandwich.

40 Out of 60 people who order grilled chicken sandwich got a chocolate milk to drink.

Let say x number of people out of 90 got chocolate milk drink.

Now we need to find the people who ordered the spicy fried chicken sandwich got a chocolate milk.

The above information can be written as:

[tex]\frac{40}{60}=\frac{x}{90}[/tex]

[tex]\frac{40}{60}\times 90=x[/tex]

[tex]x=20\times 3[/tex]

[tex]x=60[/tex]

Hence, 60 of the people who ordered the spicy fried chicken sandwich got a chocolate milk.

The number of people who ordered the spicy fried chicken sandwich and got a chocolate milk is calculated as 50.


The number of people who ordered the spicy fried chicken sandwich and got a chocolate milk is to be determined.

Step-by-step explanation:

Calculate the total number of people who ordered the spicy fried chicken sandwich minus the number who got a chocolate milk with the grilled chicken (90 - 40 = 50).Therefore, 50 people who ordered the spicy fried chicken sandwich got a chocolate milk.

Which set of points lies on the graph of x = -2?

Answers

If you use Desmos it'll give you these points:
  (-2,0)
  (-2,2)
  (-2,-2)
Since it's perfectly straight line, all the points with begin with -2. It's the same for graphs like y=-2, which would make them all end in -2. Hope this helped!

Please help with 2 questions.

Answers

For perimeter you take the larger length (15) and divide by the smaller (9) and reduce.
15/9 = 5/3 or C

For area you take the ratio for the perimeter and square it so
5/3 * 5/3 = 25/9

an angle bisector of a triangle divides the opposite side of the triangles into segments 6cm and 4cm long. A second side of triangle is 7.4 cm long. Find the longest and shortest possible lengths of the thrid side of the triangle

Answers

From the angle bisector theorem
we can first assume the third side is x, therefore
7.4/6 = x/4
    x = 7.4 × 4/6
     x =  4.93 cm
We can also use, 
7.4/4 = x/6
      x = 7.4 ×6/4
      x = 11.1 cm
Therefore, the shortest length of the third side is 4.93 cm while the longest length is 11. 1 cm

A town has a population of 2000 and grows at 4% every year what will be the population after 15 years to the nearest whole number

Answers

Answer:

3602

Step-by-step explanation:

Final answer:

The population of the town after 15 years will be approximately 3495.

Explanation:

To find the population of the town after 15 years, we need to use the formula for compound interest: A = P(1 + r)^t, where A is the final amount, P is the initial amount, r is the growth rate expressed as a decimal, and t is the number of time periods. In this case, P = 2000, r = 0.04, and t = 15.

Using this formula, we can calculate the population after 15 years:

A = 2000(1 + 0.04)^15

A = 2000(1.04)^15

A ≈ 2000(1.747422)

A ≈ 3494.84

Rounding to the nearest whole number, the population after 15 years will be approximately 3495.

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Find the smallest possible set (i.e., the set with the least number of elements) that contains the given sets as subsets. {jill, john, jack}, {susan, sharon}

Answers

{Jill, John, Jack, Susan, Sharon}
Subsets make up the main set, so basically combine the subsets together.

The smallest possible set that contains the given sets as subsets is,

⇒ {jill, john, jack, Susan, sharon}

What is mean by Subsets?

A set 'A' is a subset of another set 'B' , if all the element of the set A are element of set of 'B'.

Given that;

The subsets are;

⇒ {jill, john, jack} , {Susan, sharon}

Now,

Clearly, A subsets of a set is contain all the elements of subsets.

So, We get the set;

Set = {jill, john, jack, Susan, sharon}

Thus, The smallest possible set that contains the given sets as subsets is,

⇒ {jill, john, jack, Susan, sharon}

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Hannah completed 3/4 of her homework on Saturday morning and 1/8 ofit on Saturday night. How much more homework does she need to complete?

Answers

She has done 7/8, so she needs to do 1/8 to complete.
1/8

You have a least common denominator. 3/4 is the same as 6/8. 6/8 + 1/8 = 7/8 leaving a remainder of 1/8

Gustavo tested 1000 calculators to see if any were defective. The company claimed that the probability of a defective calculator was 1% per 1000 calculators. Gustavo found 15 defective calculators out of 1000.

What was the predicted frequency?

Predicted Frequency . . .

=(# of trials)(theoretical probability)
=(1000)(0.01)

The predicted frequency was ____
A: 1
B: 10
C: 100
D: 1000

What was the relative frequency?

Relative Frequency = Observed Frequency/Total Number of Trails

The relative frequency was _____
A: 0.15%
B: 1%
C: 1.5% 
D: 15% 

Answers

We are to find the predicted and relative frequency of the defective calculators.

a) The company claimed that there is 1% probability of defective calculators out of 1000.
So predicted frequency = 1% of 1000 
= 0.01 x 1000
= 10

b) 15 defective calculators were found in 1000 calculators.
Relative Frequency = Observed Frequency / Total Number
= 15/1000 x 100%
= 1.5%

ITS 10

Then 1.5% thank this

What are the two equations created by the inequality |x–12| + 5 < 27? y1= and y2=

Answers

First we rewrite the expression:
 | x-12 | <27-5
 | x-12 | <22
 Then
 We write the problem as a compound inequality:
 -22 <x-12 <22
 From here, we obtain 2 equations:
 -22 <x-12
 x-12 <22
 Rewriting:
 -x + 12> 22
 x-12 <22
 Answer:
 the two equations created by the inequality | x-12 | + 5 <27 are: 
 
-x + 12> 22
 x-12 <22

Answer:

y1= |x-12|

y2= 22

Which graph represents the two functions? Graph 3

Step-by-step explanation:

Jeremiah scored 28 points in yesterday's basketball game. He made a total of 17 baskets. Some of the baskets were field goals (worth two points) and the rest were free throws (worth one point). How many field goals did Jeremiah make? How many free throws did he make?

Answers

Had all of Jeremiah's baskets been field goals, his score would have been 34 points. Since it was 6 points less, he must have made ...
.. 6 free throws, hence 11 field goals.

Answer:

6 and 11

Step-by-step explanation:

Need help I dont know how to do this please help!
2. Graph the number on a number line.

10/7

Answers

That is in fraction form, so in order for it to be plotted on the number line, change it into decimal form.
10/7= 1 3/7, so we have a whole number now
solve for the fraction,
3/7=0.4

this will give you the decimal form which is 1.4
The number line illustration to this is (see attached photo)
It is 1 bar to the right and less than a half.

The volume of a sphere is 3,000π m3. What is the surface area of the sphere to the nearest square meter? 165 m2 2,158 m2 1,079 m2 37,699 m2

Answers

To solve this problem and calculate the area of the sphere, you must apply the following formulas:

 Formula N° 1:

 V=4/3(πr³)  

 V is the volume of the sphere (V=3,000π m³).
 r is the radius.

 Formula N° 2:

 A=4πr²

 A is the area of the sphere.
 r is the radius.

 As you can see, you don't have the value of the radius "r". So, you must rewrite the Formula N° 1, and clear "r":

 V=4/3(πr³)
 (3,000)(3)=4πr²
 r³=9,000/4π
 r=(9,000/4π)^1/3
 r=13.1037 m

 Then, to calculate the area of the sphere, you must substitute the value of "r" into the Formula N° 2:

 A=4πr²
 A=4π(13.1037)²
 A=2,158 m²

 What is the surface area of the sphere to the nearest square meter?

 The answer is: 2,158 m²

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The Polygons are similar, but not necessarily drawn to scale. Find the value of x.

Answers

x=13
4 times 4=16
2 times 4=8
2.5 times 4=10
what minus 3 equals ten?

What is value of x?
https://static.k12.com/nextgen_media/assets/8093716-NG_GMT_SemB_08_UT_12.png

Answers

check the picture below.

The calculated measure of the angle x is 76 degrees

How to determine the measure of the angle x

From the question, we have the following parameters that can be used in our computation:

The figure

Also, we have

Angle with a measure of 76 degrees

By the theorem of corresponding angles, we have

x = 76

Hence, the measure of the angle x is 76 degrees

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A _____ is a type of variable that is not accounted for in a research experiment.
a. independent variable
b. dependent variable
c. confounding variable

Answers

The confounding variable.
C. Confounding variable

Which equation models the problem below if c represents the number of puppies whose eyes are closed?

There are 15 puppies in a photograph, and 11 of them have their eyes open.
How many puppies have their eyes closed?



c – 11 = 15

11 – c = 15

15 + c = 11

11 + c = 15

Answers

First you must take into account the variable that is being defined for this case:
 c = represents the number of puppies whose eyes are closed.
 We can then write the following equation:
 15 = 11 + c
 Rewriting the equation:
 11 + c = 15
 Clearing c:
 c = 15-11
 c = 4
 4 puppies have their eyes closed
 Answer:
 11 + c = 15
 4 puppies have their eyes closed

Answer:

11+c=15

Step-by-step explanation:

4 pups have their eyes closed

Jeannette earns $3.50 per hour and 4% commission on the gross amount of
her sales. How much did she earn the week she worked 35 hours and sold
$4,550 worth of merchandise?
a. $304.50
b. $182
c. $186.90
d. $122.50

HELP ASAPPP

Answers


[tex]3.5 \times 35 = 122.5 \\ \%4 \: of \: 4550 = 182 \\ 122.5 0+ 182 = 304.50[/tex]
so A is true

Use the number line to find the ratio AC/CF simplify the ratio

A. 8/20
B 2/5
C 8/12
D 2/3

Answers

the answer is B. 2/5
it would originally be 8/20 but simplified it 2/5

Answer:

The correct option is D.

Step-by-step explanation:

From the given number line it is clear that A=0, B=2, C=8, D=14, F=20 and G=22.

The length of line segment AC is

[tex]AC=C-A=8-0=8[/tex]

The length of line segment CF is

[tex]CF=F-C=20-8=12[/tex]

The ratio of line segment AC to CF is

[tex]\frac{AC}{CF}=\frac{8}{12}[/tex]

Cancel out the common factors.

[tex]\frac{AC}{CF}=\frac{2}{3}[/tex]

The simplified ratio of [tex]\frac{AC}{CF}[/tex] is 2/3.

Therefore the correct option is D.

A trowel is in the shape of a trapezoid. For what value of x is the trapezoid am isosceles trapezoid

Answers

Final answer:

A trapezoid becomes an isosceles trapezoid when its non-parallel sides, or legs, are of equal length. Thus, for a given length x, an isosceles trapezoid requires both legs to be x in length.

Explanation:

A trapezoid is a geometric shape with one pair of parallel sides. A trapezoid becomes an isosceles trapezoid when the non-parallel sides (the legs) are equal in length. If we denote the length of the legs as x, then the trapezoid becomes an isosceles trapezoid when both legs are of equal length, meaning x equals x.

Without additional information such as the lengths of the base and height of the trapezoid or the angles within it, we cannot provide a specific numerical value for x. The key to remember here is that an isosceles trapezoid has equal length legs - so whatever value you have for one leg, the other leg must be the same for it to qualify as an isosceles trapezoid.

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