find the first term in geometric sequence if the 11th term is -160 and the ratio is -1/3​

Answers

Answer 1

Answer:

  -9447840

Step-by-step explanation:

You want the first term of a geometric sequence whose 11th term is -160 and whose common ratio is -1/3.

N-th term

The n-th term of a geometric sequence is ...

  an = a1·r^(n-1)

where a1 is the first term and r is the common ratio.

Using the given values, we have ...

  -160 = a1·(-1/3)^(11 -1)

  a1 = (-160)·(-3)^10 = -9447840

The first term is -9447840.


Related Questions

ANSWER FAST
q>d, if d=3

Answers

Answer:

It depends on what q is.

Step-by-step explanation:

Is d is less than q then q will be greater.

Answer:

q would be anything that’s over 3

Step-by-step explanation:

If d=3, then q>3, so q is any number larger then 3

WILL MARK BRAINLIEST!!!


Given: square ABCD with a perimeter of 48 units. Find the number of units in BD (in simplest radical form)

Answers

Answer:

12√2 units

Step-by-step explanation:

Step-by-step explanation:

perimeter of a square=4side

perimeter= 4s= 48 units

S= 48/4

S = 12 units

digonal BD = S√2

= 12√2 Units

BD = 12√2 Uits

. This line plot shows how many miles Maya walked this week.

Answers

Answer:

60.5 or 60 1/2

Step-by-step explanation:

7 (2)

8.5 (1)

9 (1)

9.5 (2)

10 (1)

14 + 8.5 + 9 + 19 + 10

60.5

D) 60 1/2 miles is the correct answer

When 4 is added to five times a number the sum is 34. Find the number. *

Answers

Answer:

let the number be 'x'

now,

4+5x=345x=34-4x=30/5x=6

so, the number is 6.

hope it helps

stay safe, healthy and happy.

Manuel's small dog eats
1
8
bag of dog food in 1 month. His large dog eats
5
8
bag of dog food in 1 month.

How many bags do both dogs eat in 6 months?

Answers

Answer:

I wanna say 348?? maybe.... I think

The dogs both would eat 4 1/2 bags

What are the x-intercepts of the following graph? On a coordinate plane, a parabola opens down and goes through (negative 2, 0), has a vertex at (0, 4), and goes through (2, 0). a. (0, 2) and (0, -2) c. (2, 0) and (-2, 0) b. (0, 4) d. (1, 0) and (3, 0)

Answers

Answer:

C

Step-by-step explanation:

If you read the question carefully, you find that the function goes through (- 2,0) and (2,0)

Where the y value = 0 you have points that are x intercepts. The answer is anything where the y value = 0

The x intercepts are (-2, 0 ) and (2,0)

The answer is C

Answer:

c

Step-by-step explanation

(2, 0) and (-2, 0)

Find the area of the polygon.
19 ft
14 ft
3 ft
4 ft
4 ft

Answers

The answer is 3ft.







Explain …

George is building a fence in his backyard. One side of the yard has a row of trees that is 15 feet long. This row of trees will serve as part of the fence. If that side of the fence needs to be 26 feet long, George will need feet of fence to finish that one side.​

Answers

Answer:

11

Step-by-step explanation:

26-15=11

From a rock ledge, the angle of elevation to the top of a tree is 22°. The angle of depression to the base of the tree is 12°.

a) Find the height of the rock ledge, to
the nearest metre.
b) Find the height of the tree, to the
nearest metre.

Answers

The height of the rock ledge will be 20.35 meters.

The height of the tree will be 58.75 meters

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

The angle of elevation to the top of a tree is 22°.

And, The angle of depression to the base of the tree is 12°.

Now,

Let the height of the rock ledge = x

So, By figure, we get;

⇒ tan 12° = x / 96

⇒ x = 96 × tan 12°

⇒ x = 20.35 meters

And, Let total height of the tree = x + y

                                                = 20.35 + y

Hence, By figure, we get;

⇒ tan 22° = y / 96

⇒ y = 96 × tan 22°

⇒ y = 96 × 0.40

⇒ y = 38.4 meter

Thus, The height of tree = 38.4 meters + 20.35 meters

                                      = 58.75 meters

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To find:-

The height of the rock ledge.Height of the tree .

Answer:-

Part A :-

Here we can see that the distance between the rock ledge and the base of the tree is 96m . Also the angle of elevation to the top of the tree from the rock is 22° .

Firstly, we can see that,

[tex]\implies \angle CAD =\angle EDA = 12^o\\[/tex]

This is so because they are alternate interior angles .

Now , in ADE ,

[tex]\implies \tan\theta =\dfrac{p}{b}=\dfrac{AE}{ED}\\[/tex]

[tex]\implies \tan 12^o =\dfrac{AE}{96m} \\[/tex]

[tex]\implies AE = 96\tan12^o m \\[/tex]

[tex]\implies AE = 96 (0.21)m \\[/tex]

[tex]\implies AE = 20.16 \ m \\[/tex]

Hence the height of the rock ledge is 20.16 m.

_______________________________________

Part B :-

Now in ACB , we have;

[tex]\implies \tan\theta =\dfrac{BC}{AC} \\[/tex]

[tex]\implies \tan 22^o =\dfrac{BC}{96m} \\[/tex]

[tex]\implies BC = 96\tan 22^o \ m \\[/tex]

[tex]\implies BC = 96(0.4) m \\[/tex]

[tex]\implies BC = 38.4 \ m \\[/tex]

Now the total height of the tree will be = BC + AE

[tex]\implies h_{tree}= BC + AE \\[/tex]

[tex]\implies h_{tree}=38.4\ m + 20.16 \ m =\boxed{58.56\ m} \\[/tex]

Hence the height of the tree is 58.56m.

and we are done!

How to solve Mathematics techniques​

Answers

Answer:

you can add them

Step-by-step explanation:

3. Selecting three desserts from eight possible choices on a menu. How
many choices are there if you determine a 1st, 2nd and 3rd rank. What are
the possible outcome? Show all evidence of understanding.

Answers

Answer:

56 possible outcomes

Step-by-step explanation:

Order does not matter in this case, so we will find all the possible combinations:

8 nCr 3 = 8! / ((8 – 3)! 3!) = 40320 / 720 = 56

Therefore, there are 56 possible outcomes.

Give the following number
in Base 10.
F16 = [? ]10

Answers

The next decimal number should be changed to hexadecimal. Your final response may contain up to six fractional digits. In decimal 386210, subscript 10 to F16.

How do you write a number in base 10?

F16 is 001000011000.1111. 218. F716 is 001000011000.111101112. 710 = (h0)16 = 716 is how the hexadecimal number is represented. It is necessary to add a 1 to the left and modify the number for both to 0. In base-2, the numeral 15 is represented as 1111, and the number 16 is represented as 10000. The greatest value in base-16 is the letter F, in a similar vein. such that 10 is the new value.

Binary 10 equals 1010, thus. Dividing 10 by 2 successively until the quotient equals 0 will yield the decimal to binary equivalent. By writing the remainder in each division step from bottom to top, it is possible to determine the binary equivalent.Base-16 is the definition given to hexadecimal. There are many powers of 16 in each place value in the number. The hexadecimal numbers are: 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F. 10 through 15 are represented, accordingly, by the letters A through F.

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Two parallel lines are crossed by a transversal.

Horizontal and parallel lines b and c are cut by transversal a. At the intersection of lines b and a, the bottom right angle is 50 degrees. At the intersection of lines c and a, the top left angle is y degrees.
What is the value of y?

Answers

The value of y is 130°

What are corresponding angles?

The angles occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal.

Given here:

Horizontal and parallel lines b and c are cut by transversal a. At the intersection of lines b and a, the bottom right angle is 50 degrees. At the intersection of lines c and a, the top left angle is y degrees.

Thus the angle adjacent to the 50-degree angle will be 130

but this angle corresponds to the angle y thus y=130 as corresponding angles are equal when a transversal intersects two parallel lines

Hence, The value of y is 130°

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Help asap PLSSS!! I’d really appreciate it. Thank you!!

Answers

The value of x and y in equations 17x - y = 40 and 2x + 4y = 50 are x = 3 and y = 11.

What is equation ?

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7.

A mathematical expression with an equals sign is referred to as an equation. Algebra is widely used in equations. When performing calculations but unsure of the precise amount, algebra is used.

17x - y = 40  ⇒ (1)

2x + 4y = 50 ⇒ (2)

(1)* 4

68x - 4y = 160

Adding equation (1) and (2)

68x - 4y = 160

2x + 4y = 50

⇒ 70 x = 210

        x = 3

Substituting the value of x in equation (1)

17*3 - y = 40

51 - y = 40

-y = 40 - 51

-y = -11

y = 11

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Find the slope of the line 6x - 2y = -16

Answers

Answer:

The slope is 3

Step-by-step explanation:

A new car costs $40,000. The value of the car depreciates by 20% per year.

a. Create a formula to determine the value of the car t years from now.

b.when will the car be worth 25,000? Round to 2 decimal places.

Answers

Answer:

i think A

Step-by-step explanation:

correct me if I wrong k

How can the graph of f(x) = 35x be transformed to represent the function g(x) = 35x – 3?
Translate the graph of f(x) - 3 units.
The point is on the graph of g(x).

Answers

Answer: Down | ( 8, -1 )

Step-by-step explanation:

Did the assignment

----------------------------------------------------------------------

Answers

Step-by-step explanation:

nzkaoavdvsoasb xzakoakaidbzbsva

Answer:

See attached

Step-by-step explanation:

Solution is below

7 time a number , increased by 4




Answers

Answer:

7 times a number increased by 4 times the number

Let a number and the number be an arbitrary variable. Let's call it x. We have an algebraic expression. Let's take it in pieces:

7 times a number: 7x

4 times the number: 4x

The phrase increased by means we add 4x to 7x:

7x + 4x

Simplifying, we get: (7 + 4)x

11x

Step-by-step explanation:

Simplify the difference. (2w2 – 8w – 8) – (5w2 + 3w – 5)

Answers

Answer:

-3w2-11w-3

Step-by-step explanation:

take w2 and w as variables. you can substitute it as w2=y and w=X then expand brackets

2y-8x-8-5y-3x+5

note that the signed changed at the second part because it was expanded with the minus sign which is basically like -1, so it changes the signs

then you collect like terms:

2y-5y-8x-3x-8+5= -3y-11x-3

now put substitute back w2=y and w=X

-3w2-11w-3

if it won't be a problem solving with w2 and w, then you skip the substitution part and solve the same

Lydia used 1/3 pound of peppers and 1/10 pound of cheese to make 3 pizzas. If Lydia uses the same recipe to make 1 pizza, how much cheese is needed?​

Answers

Answer: Lydia used 1/3 pound of peppers and 1/10 pound of cheese to make 3 pizzas, which means that she used 1/3 / 3 = 1/9 pound of peppers and 1/10 / 3 = 1/30 pound of cheese per pizza.

If Lydia uses the same recipe to make 1 pizza, she will need 1/9 pound of peppers and 1/30 pound of cheese. Therefore, the amount of cheese needed is 1/30 pound.

Step-by-step explanation:

Explain how to write a quadratic equation given the following three points on the graph (5,31) (3,11) (0,11)

Answers

Given:

The graph of a quadratic function passes through the points (5,31) (3,11) (0,11).

To find:

The equation of the quadratic function.

Solution:

A quadratic function is defined as:

[tex]y=ax^2+bx+c[/tex]            ...(i)

It is passes through the point (0,11). So, substitute [tex]x=0,y=11[/tex] in (i).

[tex]11=a(0)^2+b(0)+c[/tex]

[tex]11=c[/tex]

Putting [tex]c=11[/tex] in (i), we get

[tex]y=ax^2+bx+11[/tex]               ...(ii)

The quadratic function passes through the point (5,31). So, substitute [tex]x=5,y=31[/tex] in (ii).

[tex]31=a(5)^2+b(5)+11[/tex]

[tex]31-11=a(25)+5b[/tex]

[tex]20=25a+5b[/tex]

Divide both sides by 5.

[tex]4=5a+b[/tex]                  ...(iii)

The quadratic function passes through the point (3,11). So, substitute [tex]x=3,y=11[/tex] in (ii).

[tex]11=a(3)^2+b(3)+11[/tex]

[tex]11-11=a(9)+3b[/tex]

[tex]0=9a+3b[/tex]

Divide both sides by 3.

[tex]0=3a+b[/tex]                 ...(iv)

Subtracting (iv) from (iii), we get

[tex]4-0=5a+b-3a-b[/tex]

[tex]4=2a[/tex]

[tex]\dfrac{4}{2}=a[/tex]

[tex]2=a[/tex]

Putting [tex]a=2[/tex] in (iv), we get

[tex]0=3(2)+b[/tex]

[tex]0=6+b[/tex]

[tex]-6=b[/tex]

Putting [tex]a=2,b=-6[/tex] in (ii), we get

[tex]y=(2)x^2+(-6)x+11[/tex]

[tex]y=2x^2-6x+11[/tex]

Therefore, the required quadratic equation is [tex]y=2x^2-6x+11[/tex].

How do I even do thissss?

Answers

Please provide your question with a math problem in the form of an image or text.

I will say, your username is true!

Please help…. The table below shows the amount of money Linda spends for a craft demonstration

Answers

to get the equation of any straight line, we simply need two points off of it, let's use those ones in the picture below.

[tex](\stackrel{x_1}{8}~,~\stackrel{y_1}{32})\qquad (\stackrel{x_2}{15}~,~\stackrel{y_2}{53}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{53}-\stackrel{y1}{32}}}{\underset{\textit{\large run}} {\underset{x_2}{15}-\underset{x_1}{8}}} \implies \cfrac{ 21 }{ 7 } \implies 3[/tex]

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{32}=\stackrel{m}{ 3}(x-\stackrel{x_1}{8}) \\\\\\ y-32=3x-24\implies {\Large \begin{array}{llll} y=3x+8 \end{array}}[/tex]

classify the angles below as acute, right, obtuse or straight ​

Answers

Answer:

Obtuse - over 90°

Acute - less than 90°

Right - 90°

Straight - 180°

1. Obtuse

2. Acute

3. Right

1. Obtuse angle
2. Acute angel
3. Right angle

Complete the square for the expression. Then factor the trinomial.
x2 - 6x
Expression:
Factored form:

Answers

Expression: x² - 6x + 9

Factored form: (x - 3)²

Using the concept of factorization.

What is factorization?

The breaking or breakdown of an entity (such as an integer, a matrix, or even a polynomial) into such a combination of some other unit, or factors, whose multiplication yields the original number, matrix, etc., is known as factorization or factoring in mathematics.

Similarly to this, factoring is a very useful technique in algebra that is utilized at all levels. Additionally, to, of course, simplify complex expressions, it offers a standard way for solving quadratic equations. Graphing functions also makes advantage of it.

Factor the expression, put each factor equal to 0, and then solve each equation to solve a quadratic equation by factoring. To do this, rearrange all terms on one side of the equation such the other side equals 0.

Given that,

x² - 6x

Now, to find the value of c = (b/2)²

divide the coefficient of x by 2.

So, divide 6 by 2 we get: ( -1.3)²

Next, multiply -1 by 3: (-3)²

Now, raise -3 to the power of 2, we get: 9

So, the expression becomes: x² - 6x + 9

Factorized form: (x - 3) (x -3)

or we can write (x - 3)²

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Help pls I’ll give extra points

Answers

Answer:

1. Gorgeous

2. Tremendous

3. Coarse

4. Crackling

5. Appetizing

Step-by-step explanation:

Those are the only words that make sense in each square.

Answer:

1.) gorgeous

2.) tremendous

3.) crackling

4.) coarse

5.) appetizing

6.) buttery

7.) magnificent

Hope this helps!

Tell whether the angles are complementary or supplementary. Then find the value of x.

Answers

Answer:

Complementary

x = 15

Step-by-step explanation:

Given angles are complementary, because their sum is 90°.

Now, let us find the value of x.

-> 3x° + 45° = 90°

-> 3x° = 90° - 45°

-> 3x° = 45°

-> x = 45/3

-> x = 15

I thought of a number, added 26 to it, and then divided the result by 20.what is my number?

Answers

Answer:

Step-by-step explanation:

14 MAY BE

PLEASE HELP WITH EASY FRACTIONS APPRECIATED MUCH!!!

Answers

Answer: 3/4 is right

Step-by-step explanation:

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