If the sum of the 8th & 9th terms of an arithmetic progression is 72 and the 4th term is -6. Find the common difference.​

Answers

Answer 1

Answer:

Correct Answer: Option D

Step-by-step explanation:

9 1/3

hope that helps


Related Questions

I don't know how to solve this

Answers

Answer:

7

Step-by-step explanation:

List out possible numbers that would add to the answer choices and see which has most possibilities

7

3 + 4

5 + 2

1 + 6

10

5 + 5

4 + 6

11

5 + 6

12

6 + 6

I think the answer is 7. If it’s not, the answer is 10. Sorry if I’m wrong!

(PLS help I’ll give brainliest to whoever can answer right nobody has been able to. )

A company makes piñatas for special events such as birthday parties. One of their piñatas is in the form of a cone-shaped hat. How much space do they have inside the piñata for candy if the piñata is 2 feet tall and 1.5 feet wide? Round to the nearest hundredth.

Answers

Volume of a cone = 3.14 x 0.75^2 x 2/3
= 3.14 x 0.5625 x 2/3
= 1.76625 x 2/3
= 1.1775 = 1.18 feet^3

Given the function h of x equals negative 2 times the square root of x, which statement is true about h(x)?

The function is decreasing on the interval (0, ∞).
The function is decreasing on the interval (–∞, 0).
The function is increasing on the interval (0, ∞).
The function is increasing on the interval (–∞, 0).

Answers

Using translation concepts, it is found that the correct statement about h(x) is:

The function is decreasing on the interval (0, ∞).

What is a translation?

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

In this problem, the parent function is:

[tex]f(x) = \sqrt{x}[/tex]

Which is increasing on (0, ∞).

After the translation, the function is:

[tex]h(x) = -2\sqrt{x}[/tex]

It was multiplied by a negative number, which means that it was reflected over the x-axis, and it will be decreasing on the interval (0, ∞).

More can be learned about translation concepts at https://brainly.com/question/4521517

Consider the function defined by f(x) lnx/x^4 for x > 0 and its graph y = f(x).
The graph of f has a horizontal tangent at point P. Find the coordinates of P.

Answers

Answer:

[tex]\sqrt[4]{e};\frac1{4e}[/tex]

Step-by-step explanation:

The first derivative of [tex]f(x)[/tex] will give, for each x, the slope of the tangent at that specific x. Let's calculate the derivative, applying the quotient rule.

[tex]D(\frac AB) = \frac{A'B-AB'}{B^2}\\f'(x)= \frac1{x^8}[(\frac1x)x^4-(lnx)(4x^3)]=\frac1{x^8}[x^3(1-4lnx)]=\frac{1-4lnx}{x^5}[/tex]

Now, to find the point with an horizontal tangent (called "stationary points"), we set the first derivative equal to 0. Considering that we're working with [tex]x > 0[/tex] we deal only with the numerator.

[tex]1-4lnx = 0 \rightarrow lnx= \frac14\\x=e^\frac14 =\sqrt[4]{e}[/tex]

At this point we Replace the value we found in the equation to find it's y coordinate

[tex]f(\sqrt[4]e) = \frac{ln\sqrt[4]e}{\sqrt[4]e^4}= \frac{\frac14}{e} = \frac1{4e}[/tex]

Constants are numbers without letters attached.
What is the constant in the equation x/2 - 3?


answers:
2
-3

Answers

Answer:

constant = - 3

Step-by-step explanation:

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

the number without letters attached is the constant - 3

Answer:

-3

Step-by-step explanation:

The answer is -3 because 2 has a letter attached to it which is x/2 -3 is without a letter.

hope dis helps):

b -5 ≥ -45 answer and steps

Answers

Answer:

-50

Step-by-step explanation:

b-5 [tex]\geq -45[/tex]

b-5 = -45 ( collect like terms)

b = -45 + -5

b = -45 -5  b = -50

Which of the following is true? there is a phase shift to the left. there is a phase shift to the right. the graph is reflected across the x-axis the graph is stretched horizontally. the graph is compressed horizontally.

Answers

Answer:

a. There is a phase shift to the left

Step-by-step explanation:

The correct statement for the graph of y = cos (x + pi/6) compared to the graph of y = cos(x) is given by: Option A: There is a phase shift to the left.

How does transformation of a function happens?

The transformation of a function may involve any change.

Usually, these can be shift horizontally (by transforming inputs) or vertically (by transforming output), stretching (multiplying outputs or inputs) etc.

If the original function is y = f(x), assuming horizontal axis is input axis and vertical is for outputs, then:

Horizontal shift (also called phase shift):

Left shift by c units: [tex]y=f(x+c)[/tex]output, but c units earlier)Right shift by c units:  [tex]y=f(x-c)[/tex]  (same output, but c units late)

Vertical shift:

Up by d units: f(x) + dDown by d units: y = f(x) - d

Stretching:

Vertical stretch by a factor k: [tex]y = k \times f(x)[/tex]Horizontal stretch by a factor k: [tex]y = f(\dfrac{x}{k})[/tex]

For this case, the parent function y = cos(x) is transformed to make the function y = cos (x + pi/6)

Thus, there is left shift of the graph of the function y =cos(x).

The graphs of both functions (parent function in red color and transformed function in blue color) is given below.

Thus, the correct statement for the graph of y = cos (x + pi/6) compared to the graph of y = cos(x) is given by: Option A: There is a phase shift to the left.

Learn more about transforming functions here:

https://brainly.com/question/17006186

In the following figure, the square ABCD is inscribed in the circle centered at point P. What is the area of the circle?

Answers

Answer:

[tex]A_{Circle} \approx 39.24\: units^2[/tex]

Step-by-step explanation:

Square ABCD is inscribed in a circle with center P such that BC = 5 units.

BD will be diagonal of the square as well as diameter of the circle.

[tex]BD = BC\times\sqrt 2[/tex]

[tex]\implies BD = 5\sqrt 2[/tex]

-> Diameter of the circle [tex](d) = 5\sqrt 2[/tex]

-> Radius of the circle [tex](r) = 2.5\sqrt 2=3.535\: units[/tex]

[tex]A_{Circle} =\pi(r)^2[/tex]

[tex]\implies A_{Circle} =3.14(3.535)^2[/tex]

[tex]\implies A_{Circle} =3.14(3.535)^2[/tex]

[tex]\implies A_{Circle} =39.2381465[/tex]

[tex]\implies A_{Circle} \approx 39.24\: units^2[/tex]

please help i dont take links or files
What do all of the numbers have in common
1.) 13%
2.) 0.125
3.) 1
----
5
4.) 10%

PLEASE HELP I DONT TAKE LINKS OR FILES AND PLEASE SHOW YOUR WORK

Answers

Answer: They are all less than 1

13% = 0.13 is less than 1

So is 0.125

And so is [tex]\frac{1}{5} = 0.2[/tex]

Same goes for 10% = 0.10

They are all less than 1

Tamara attends a cycling class that starts at 6:00. The class lasts 45 minutes. What time does class end?
Group of answer choices

A.15 minutes before 7:00

B.15 minutes after 6:00

C.45 minutes before 7:00

D.45 minutes after 7:00

Answers

Answer: C. 45 minutes before 7:00

Hope this helps! :)

Brainliest please.

What is the slop of the line?
5(y+2)=4(x-3)

A. 3/2
B. 2/3
C. 4/5
D. 5/4

Answers

Answer:

c. 4/5

Step-by-step explanation:

Name the circle
Will give a lot of points!!! ASAP

Answers

Circle KJI center L, radius LK/diamter KI?

Which of the following notes is G?

Answers

G in bass clef is the answer D!

Write x=2 in Slope intercept form

Answers

Answer:

y= 2/1 + 0

Step-by-step explanation:

If there's not a y-int. it'll be 0.

PLS HELP WILL GIVE BRAINLIEST

Answers

Answer:

y = 1/2x - 1

Step-by-step explanation:

The x value is divided by 2 and then has 1 subtracted from it.

also for future posts, put the question in the title that way people know what you need and can click if they know the answer.

Please help me!!! I don't know!
txcfygvubhjnlkm

Answers

Answer:

See explanation

Step-by-step explanation:

look photo

CAN SOMEBODY SOLVE THE PROBLEM IVE BEEN STUCK ON IT I WILL GIVE BRAINIEST


The diameter of a cylinder is 3 yd. The height is 12 yd.Find the volume of the cylinder.

Answers

Answer:

84.78cube.yd

Step-by-step explanation:

Volume of cylinder= πr^2h

3.14 × 1.5 × 1.5 × 1284.78 cube.yd

What is 8 * 8?
8*8 =
A. 64
B. 24
C. 91
D. 8

Answers

Answer: A. 64

Step-by-step explanation:

8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 = 64

PLS HELP I am giving 25 points here is the question

A shopkeeper sold 12 bags of potatoes for $2.99 each. He bought the potatoes for $1.90 for each bag what was his total profit

Answers

Find theFind tha amount of profit per bag by subtracting:

2.99 - 1.90 = 1.09

He made $1.09 profit per bag.

Now multiply the profit per bag by the number of bags:

1.09 x 12 = 13.08

Total profit = $13.08 amount of profit per bag by subtracting:

2.99 - 1.90 = 1.09

He made $1.09 profit per bag.

Now multiply the profit per bag by the number of bags:

1.09 x 12 = 13.08

Total profit = $13.08

Sold 12 bags for $2.99 each
Shopkeeper makes $1.09 profit for each bag
1.09 x 12 = 13.08
The shopkeeper makes $13.08 profit.

how do i find slope in standard form?

Answers

Answer:

The standard form of a linear equation is Ax + By = C. When we want to find the slope of the line represented by this equation, we have two options. We can put the equation in slope-intercept form and identify the slope that way, or we can use the formula m = -A/B.

Answer:

m = -A/B

The standard form of a linear equation is Ax + By = C.

[tex]hope \: it \: will \: help \: [/tex]

how to multiply and divide decimals with whole numbers

Answers

If this helps: 10 x .5 would be the same as 50% of 10. Also: 40 x .12 would be the same as 12% of 40.

I need the assistance of smarter beings than I..... I'm so lost.....

Answers

Answer:

[tex]\sf \bold{ 1 * (-3)^{n-1}}[/tex]

Explanation:

first term, a₁ = 1

difference between the terms: -3

used geometric formula : [tex]\bold{\sf a_1 * (r)^{n-1}}[/tex]

where "a₁ is first term" and "r refers to common difference"

formula for this nth term: [tex]\sf \bold{ 1 * (-3)^{n-1}}[/tex]

12 , − 7 , − 20 , − 9 , − 5 , 6 , 2 , − 12 , 15 , 16 State the median.

Answers

To find the median, we must order the numbers from least to greatest and find the middle number which will be the median.

     List in order: -20, -12, -9, -7, -5, 2, 12, 15, 16

The number in the middle position is -5 <-- median

Hope that helps!

Solve the equation for x


Answers

Answer:

5x-18=4x+7 ( vertical opposite angle)

5x-4x=7+18

x=25

Can an isosceles triangle be a right triangle? Why or why not?

Answers

Answer: Yes

Step-by-step explanation:

It can have angles of 90 degrees, 45 degrees, and 45 degrees.

Yes, a triangle in which at least two sides are equal. Since the two legs of the triangle are equal, which makes the corresponding angles are equal to each other.

What is the isosceles triangle?

The Isosceles Right Triangle has one of the angles exactly 90 degrees and two sides, which are equal to each other.

Since the two sides are equal it makes the corresponding angle congruent.

An Isosceles triangle is a triangle in which at least two sides are equal. Since the two legs of the triangle are equal, which makes the corresponding angles are equal to each other.

Hence, Yes, a triangle in which at least two sides are equal. Since the two legs of the triangle are equal, which makes the corresponding angles are equal to each other.

Read more on isosceles triangle;

brainly.com/question/11884412

#SPJ4

Y+1.27=7.23 solve for y

Answers

Answer:

y=5.96

Step-by-step explanation:

You can do a reverse equation and do 7.23 - 1.27 = 5.96

James has 13. 7 ounces of trail mix. He shares the trail mix equally with his sister. How much trail mix does each person get?
6. 35 oz
6. 85 oz
7. 35 oz
7. 7 oz

Answers

Answer: 6.85 ounces

Step-by-step explanation:

13.7 divide by 2 because he and his sister are sharing the trail mix.13.7 = 2x6=12 so 13-12=1 and bring down the 7 so 2x8=16 17-16=11 so 2x5=10 11-10=1. But don't put 6.851 put 6.85 ounces.

you buy a sandwich for $6.965, a salad for $3.25, and a drink for $1.79. if sales tax is 7%, how much change do you receive from $20 bill, rounded to the nearest cent?

Answers

6.965 + 3.25 + 1.79 = 12.005, now, let's apply a 7% taxation on that

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{7\% of 12.005}}{\left( \cfrac{7}{100} \right)12.005}\implies 0.84035~\hfill \underset{total~bill}{\stackrel{12.005~~ + ~~0.8435}{12.84535}} \\\\\\ 20~~ - ~~12.84535\implies 7.15465~~\approx ~~ \$7.15[/tex]

Can anyone solve this?

Answers

Would it be 40.25????

Answer:

  54 cubic inches

Step-by-step explanation:

Just as the area of a triangle is half the area of a rectangle with the same dimensions, the volume of a triangular prism is half the volume of a rectangular prism with the same dimensions:

  V = 1/2(LWH)

  V = (1/2)(9 in)(4 in)(3 in) = 54 in³

The volume of Phil's block of cheese is 54 in³.

Note: Images may not be drawn to scale
Square A'BC V' is a ditation of square ABCD.
What is the scale factor?
Enter your answer in the box
C
Be
7
8
9
11
4
5
6
6
1
2
3
V
:
$
0
*

Answers

Answer:

  1/3

Step-by-step explanation:

The scale factor is the ratio of image lengths to original lengths. For this pair of figures, the scale factor is ...

  A'B'/AB = 2/6 = 1/3

The scale factor is 1/3.

Other Questions
A shop sells pairs of trainers for 68 each. They make a percentage profit of 70% on each pair.What was the cost of each pair of trainers to the shop? A flowchart is a useful visual that can __________.a. be used to show spatial relationships.b. be used to show frequency or distribution of parts in a whole.c. be used to show trends in one or more variables.d. be used to illustrate processes or procedures. What are the prime numbers between 2010 and 2020 What is the balance point for the following data set? 19 80 15 20 On a circle of radius 10 feet, what angle would subtend an arc of length 6 feet? Find a linear equation with two variables that, together with theequation 10x + 5y = 1, would comprise a systemwith one solution Please help!! Which sectional tension was the result of Henry Clay's American System?O The South was opposed to the tariffs.O The South was opposed to states' rightsO The North was opposed to the National Bank.O The North was opposed to the National Road. The space shuttle carries c pounds of cargo, and each piece of cargo weighs 212.66 pounds. Which of the following expressions represents the number of pieces of cargo? one revolution of the moon around earth takes_______ days. ? need in a day or 2 please! Is worth 23 points and brainiest! Read this passage from when birds get flu and cows go mad! by john diconsiglio. Hughes was assigned to find infected cow parts at meat processing plants in washington. He remembers the sad look on some owners faces when he flashed his badge. If there was a chance that any of their meat might have mad cow, theyd have to throw it all away. "the business they built from scratch was destroyedthrough no fault of their own. And there was nothing they could do about it," hughes says. The tone in this passage most suggests that hughes is caring. Dedicated. Tense. Focused A piece of copper steel (specific heat = 490 kg K) has a mass of 300 g. If is heated to150C, then plunged into 4.00 kg water (specific heat = 4180 kg at 20C, what willbe the final temperature at equilibrium? According to Daniel Boone, what has Kentucky changed as a result of white settlements?It has become more dignified and natural.It has become more settled and farmed.It has become more wild and deadly. A 10-A current is maintained in a simple circuit with atotal resistance of 209 ohm. What net charge passes through any point in a circuit during a 1-minute interval? Guys please help! i will mark brainliest to the right answersNote: in order for me to mark a brainliest 2 people need to answer Pick the items that represent a use of trees. Which of the following was a direct result of increased job and educational opportunities in urban areas? decline of city centers rise of city centers increase in overcrowding formation of ethnic neighborhoods Wundt created the first psychology laboratory for the study of. Which principle does the U.S. Supreme Court apply when it declares an act of Congress unconstitutional? A. Advice and ConsentB. Checks and BalancesC. Separation of PowersD. Executive Privilege The ratio of the measures of the sides of a triangle is 2:11:15. If the perimeter of the triangle is 168 inches, find the length of the longest side.