If all terms of a series are​ positive, the series sums to a positive number?

A.
The statement is false because the series could converge to a negative number.
B.
The statement is true because the series will converge to a positive number because the series contains no negative terms.
C.
The statement is true because the series cannot diverge since all the terms are positive.
D.
The statement is false because the series could diverge.

Answers

Answer 1
It is B. There are no counterexamples of it being wrong.
Answer 2

A geometric series is the sum of an unlimited number of terms with a fixed ratio between them. The correct option is B.

What is geometrical series?

A geometric series is the sum of an unlimited number of terms with a fixed ratio between them.

The given statement "If all terms of a series are​ positive, then the series sums to a positive number" is true because the series will converge to a positive number because the series contains no negative terms.

Hence, the correct option is B.

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Related Questions

1 tin of 500ml blue paint costs $11.50. to finish a bedroom i need 4litre of blue paint. how much wi this cost me.

Answers

We know that 1 litre is equal to 1000ml (double the amount they're giving us), so 1 litre of paint is going to be $23 (we know this by multiplying 11.50 • 2).

Knowing this, all we need to do is multiply $23 • 4  which should give us $92.

So, the total of how much you will need to pay in this scenario to paint a room is $92 for 4 litres of blue paint.

Good luck! 

change one letter in the word cave to solve it: A curved stick_______

Answers

cane, came .....................................
Final answer:

By changing the 'v' in 'cave' to 'n', we solve the clue: A curved stick, given by the word 'cane'. Although a concave mirror was mentioned, it doesn't fit in this context.

Explanation:

The question asks you to change one letter in the word 'cave' to solve the clue: A curved stick. If we change the letter 'v' in 'cave' to 'n', we get the word 'cane'. A cane is typically curved at the top, resembling a stick. Although the reference to a concave mirror is interesting, it does not fit in this context as a concave mirror is a spherical mirror with its reflecting surface on the inner side of the sphere, forming a 'cave' shape. A useful tip to remember for distinguishing between concave and convex is: concave means caved in.

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Solve for x. 3.3x = 29.04 A) 8.0 B) 8.2 C) 8.6 D) 8.8

Answers

To solve this equation, we need to get x alone on one side. To do this, we use the inverse operation of 3.3x to separate the two. Since the equation is multiplying, we're going to divide to separate 3.3 and x. To keep the equation balanced, divide 29.04 by 3.3 as well.
[tex]3.3x=29.04[/tex]
[tex]\frac{3.3x}{3.3} = \frac{29.04}{3.3} [/tex]
[tex]x = 8.8[/tex]
Your answer is D :)

lungimea unei gradini de 78 m iar perimetrul este de 256 m.Afla latimea gradinii

Answers

trebuie sa postezi la pagina care e in romineste
L= 78 si P=256
P=2L+2W                 w e width(latime)
256=2*78+2w
256=156+2w
256-156=2 w
100=2w
w=50
i dont speak that but i think the anwser is w=50

subtracting unlike fractions 8/9 - 5/6

Answers

Hello,

Here is your answer:

The proper answer to your question is "1/18".

Here is how:

8*6=48
9*6=54
-
5*9=45
6*9=54

48-45=3

Which is 3/54!

3/3=1
54/3=18

Which means your answer is 1/18!

If you need anymore help feel free to ask me!

Hope this helps!

Clara's savings account has an APR of 10.95% calculates interest daily and pays interest at the end of the month if during the month of september her balance was $700 for the first 10 days of the month, $1900 for the next 10 days of the month, and $1400 for the last 10 days of the month, how much total interest did clara earn in september
A. $12.78
B. $11.20
C. $12.00
D. $11.30

Answers

Clara's average balance for the month was
.. (700*10 +1900*10 +1400*10)/30 = 1333.33

The interest paid on that balance was
.. 30/365*0.1095*$1333.33 = $12.00 . . . . . matches selection C

Answer:  

The correct option is C. $12.00

Step-by-step explanation:

Annual Principal Rate = 10.95%

                                    = 0.1095

Time duration = 10 days

[tex]\text{Time duration in years =}\frac{10}{365}=0.027\:\:years[/tex]

First finding interest rate for $700

Interest = 700 × 0.1095 × 0.027

             = $2.10

Now finding interest rate for $1900

Interest = 1900 × 0.1095 × 0.027

             = $5.70

Then finding interest rate for $1400

Interest = 1400 × 0.1095 × 0.027

             = $4.20

Total Interest paid = 2.10 + 5.70 + 4.20

                                = $12.00

Hence, The correct option is C. $12.00

HELP ME PLZ I BEGG I GIVE BRAINLIEST

For what value of x:

is the square of the binomial x+1 twenty greater than the square of the binomial x–3?

Answers

(x + 1)^2 = x^2 + 2x + 1
(x - 3)^2 = x^2 - 6x + 9

x^2 +2x + 1 = x^2 - 6x + 9 + 20 Cancel the x^2. add 9 and 20 together.
2x + 1 = -6x + 29 Add 6x to both sides.
2x + 6x + 1 = 29
8x + 1 = 29 Subtract 1 from both sides.
8x = 29 - 1
8x = 28 Divide by 8
x = 28/8
x = 3 4/8 = 3 1/2


Simplify 3a • 3b ÷ 3c ÷ 3d. The exponent on 3 is _____.

Answers

abcd is your exponent

The correct answer is  2.

To simplify the expression 3a • 3b ÷ 3c ÷ 3d, we need to apply the laws of exponents and combine the coefficients and variables.

Given expression: [tex]3a \cdot 3b \div 3c \div 3d[/tex]

[tex]\text{Step 1: Rewrite the expression using exponents}[/tex]

[tex](3^1 \cdot a) \cdot (3^1 \cdot b) \div (3^1 \cdot c) \div (3^1 \cdot d)[/tex]

[tex]\text{Step 2: Apply the laws of exponents for multiplication and division}[/tex]

[tex](3^1 \cdot 3^1 \cdot a \cdot b) \div (3^1 \cdot c) \div (3^1 \cdot d)[/tex]

[tex]= (3^{1 + 1} \cdot a \cdot b) \div (3^1 \cdot c) \div (3^1 \cdot d)[/tex]

[tex]= (3^2 \cdot a \cdot b) \div (3^1 \cdot c) \div (3^1 \cdot d)[/tex]

[tex]\text{Step 3: Simplify the expression by combining the exponents and coefficients}[/tex]

[tex](3^2 \cdot a \cdot b) \div (3^1 \cdot c) \div (3^1 \cdot d)[/tex]

[tex]= (3^2 \cdot a \cdot b) \div (3^{1 + 1} \cdot c \cdot d)[/tex]

[tex]= (3^2 \cdot a \cdot b) \div (3^2 \cdot c \cdot d)[/tex]

[tex]= \frac{a \cdot b}{c \cdot d}[/tex]

Therefore, the simplified expression is [tex]\frac{a \cdot b}{c \cdot d}[/tex], and the exponent on 3 is 2.

A regular hexagon has a side of 18 cm, find the area of the regular polygon

Answers

The area is 841.78 cm

in an election for sheriff 210 people voted if there where 1260 possible voters write a ratio to compare the number of people who voted to the numbernof possible voters

Answers

Final answer:

The ratio of the number of people who voted to the number of possible voters in the sheriff election is 1:6 after simplifying the original ratio of 210:1260.

Explanation:

In an election for sheriff where there are 1260 possible voters and only 210 people voted, the ratio of the number of people who voted to the number of possible voters can be written as 210:1260. To simplify this ratio, you divide both numbers by the greatest common divisor, which in this case is 210. So, when you divide both 210 and 1260 by 210, the simplified ratio is 1:6. This means that for every one person who voted, there were six possible voters.

The number of people who voted is 210 and the number of possible voters is 1260. So the ratio is 210:1260. Simplifying this ratio by dividing both numbers by their greatest common divisor, which is 30, we get 7:42. Therefore, the ratio to compare the number of people who voted to the number of possible voters is 7:42.

Find the function y1 of t which is the solution of 16y′′−81y=0 with initial conditions y1(0)=1,y′1(0)=0.

Answers

Consider this option.
Make a design according the local requirements.

Beulah took out a loan for $1225 at an 11.4% APR, compounded monthly, to buuy a foosball table. If she will make monthly payments of $101.75 to pay off tghe loan, how many total payments will she have to make?

Answers

Beulah should make 13 (rounded off) payments of $101.75 for her loan amounting to $1372.18 after a year.

To answer this problem, get first the Future Value (FV) of the loan for a year. Given the APR and the amount of loan, FV is computed as follows: FV = $1225 x (1+.0095)¹² = $1372.18
Note that the APR and period were changed to 0.95% and 12, respectively because it has to be compounded monthly.  

Now, divide the FV by the monthly payment of $101.75.
Number of payments = $1372.18/$101.75 = 13.48 ≈ 13

Answer:

13

Step-by-step explanation:

APEX

Which of the following functions is quadratic? f(x)=3(x-4)(x+3), f(x)=5^2, f(x)=2/x, f(x)=2x^3+3x^2-5

Answers

In B 5^2 = 25. There is no x anywhere.
In C f(x) = 2/x is a function of a reciprocal, not a quadratic.
In D f(x) = 2x^3 + 3x^2 - 5 is a cubic. A cubic is not a quadratic. The highest power of a quadratic is x^2

That leaves A. When you expand the brackets, you get
3(x^2 + 3x- 4x - 12)
2(x^2 - x - 12) when you remove the brackets you get
2x^2 - 2x - 24. The highest power of x is x^2. This is your quadratic.

A<<<< answer.

Final answer:

The function f(x)=3(x-4)(x+3) is the only quadratic function provided in the options, as it can be expanded to a second-order polynomial form.

Explanation:

The student asks which of the given functions is quadratic. A quadratic function is a second-order polynomial with the highest exponent of the variable being 2. Given the options, the function f(x)=3(x-4)(x+3) is quadratic because it can be expanded to the form ax2 + bx + c, where a, b, and c are constants. The given function will simplify to a quadratic equation once we expand it. No other provided functions display the characteristics of a quadratic equation; f(x)=52 is a constant, f(x)=2/x is a rational function, and [tex]f(x)=2x^3+3x^2-5[/tex] is a cubic function.

Judy built a rectangular patio that is 9 meters wide and has a perimeter of 40 meters what is the length of Judy’s patio

Answers

Final answer:

The length of Judy's rectangular patio is 11 meters, calculated using the perimeter formula for rectangles and the given width and perimeter measurements.

Explanation:

To find the length of Judy's patio, we can use the formula for the perimeter of a rectangle, which is P = 2l + 2w, where P is the perimeter, l is the length, and w is the width. Judy's patio has a known width of 9 meters and a perimeter of 40 meters. Substituting these values into the perimeter formula, we get:

40 = 2l + 2(9)

40 = 2l + 18

To solve for the length l, we first subtract 18 from both sides:

40 - 18 = 2l

22 = 2l

Now, we divide both sides by 2 to find the length:

22 / 2 = l

11 meters = l

Therefore, the length of Judy's patio is 11 meters.

plz put graph form
1) 2x - y = -13
y = x + 9
2)3x + 2y = 10
6x - y = 10
3)4x - 3y = 5
3x + 2y = -9
4)x + y = 7
x - y = -1

Answers

I'll do one of these. You can do the other three. You should always know what the answer is before beginning. 

Three is about as complicated as they get.
Multiply the top equation by 2 or 2(4x - 3y = 5) = 8x - 6y = 10
Multiply the bottom equation by 3 or 3(3x + 2y = - 9) = 9x + 6y  = - 27

8x - 6y = 10
9x + 6y = - 27 Now add these two
17x = - 17 Divide both sides by 17
x = - 1
You can solve for y
8(-1) - 6y = 10
-8 - 6y = 10 Add 9 to both sides.
-6y = 18
y = - 3

(-1,-3) is the point where this crosses.

What you want to see is here.



your elapsed time is 9 and 3/4 and you finishrd at 6:00 pm. what ime did you start?

Answers

if the elapsed time is in hours then you started at 10:45 am 

if the elapsed time is in minutes then you started at 5:50pm 15 seconds in

What is the mean of the data set un the box below?
- 7,- 10,- 1,0,- 4,- 7,3,- 2,1

Answers

Mean is average.


The data set is: (-7), (-10), (-1), 0, (-4), (-7), 3, (-2),1
You find mean by adding up all of the values and dividing them by the number of values.

-7 + -10 + -1 + 0 + -4 + -7 + 3 + -2 + 1 = -27

you divide this by 9 because there are 9 seperate values.

-27/9 = -3

The mean of the data set is -3


Hope I helped!

Let me know if you need anything else!

~ Zoe

Felicia paid $2,879 for a new wall oven with her credit card. Felicia’s credit card has an APR of 13.89%, compounded monthly. It took Felicia seven years of identical monthly payments to pay for her oven, and she made no other purchases with her card until it was paid off. Over the ten years that she kept the oven, it used an average of $2.97 per week in electricity. Between the electricity and the interest, which component of the lifetime cost of the oven was greater, and how much greater was it? (Round all dollar values to the nearest cent.) a. The interest cost $94.12 more than the electricity. b. The interest cost $1,638.52 more than the electricity. c. The electricity cost $1,334.60 more than the interest. d. The electricity cost $463.32 more than the interest.

Answers

2.97 x (10 years- 52 weeks in a year= 520) = 1544.40

P= PV x i / 1- (1+i)^-n
PV= 2879
I= .1389/12
N= 84 (7 years x 12)

=53.78 x 84 = 4517.52
4517.52 - 2879 = 1638.52
1638.52 - 1544.40 = 94.12

The lifetime cost of the oven shows that A. The interest cost $94.12 more than the electricity.

How to calculate the cost?

From the given information, over ten years that she kept the oven, it used an average of $2.97 per week in electricity. This will be calculated as:

= 2.97 × (10 × 52)

= 2.97 × 520

= $1544.30

Then, using the interest, the computed value will be:

= [(53.78 × (12 × 7)] - 2879

= (53.78 × 84) - 2879

= 1638.52 - 1544.40

= $94.12

Therefore, the interest cost $94.12 more than the electricity.

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(4u)(5v^2)-2u+uv^2-4uv^2

Answers

south Africa is the awnser

Yesterday, the price of a gallon of gas at five gas stations was $3.64, $3.79, $3.70, $4.01, and $3.91, respectively, but today each gas station raised its price by $0.08. What is today's mean price of a gallon of gas at the five stations?
A. $3.81
B. $3.89
C. $3.73
D. $3.97

PLEASE BE CORRECT.

Answers

3.64 + 3.79 + 3.70 + 4.01 + 3.91 = 19.05
0.08 * 5 = 0.40

19.05 + 0.40 = 19.45

19.45 / 5 = 3.89

Answer is B
Answer:

Option: B is the correct answer.

              B.    $ 3.89

Step-by-step explanation:

The price of a gallon of gas at five gas stations is given by:

       $3.64, $3.79, $3.70, $4.01, and $3.91

The mean of these data values is given by:

      [tex]Mean=\dfrac{3.64+3.79+3.70+4.01+3.91}{5}\\\\\\Mean=\dfrac{19.05}{5}\\\\\\Mean=3.81[/tex]

We know that if each of the quantity of the data set is increased by a fixed amount then the mean of the data set also increases by that fixed amount.

As we are given that each  gas station raised its price by $0.08.

This means that the mean is also increased by $ 0.08

i.e. Today's mean price of a gallon of gas at the five station is given by:

            [tex]Mean=3.81+0.08\\\\\\Mean=3.89[/tex]

             Hence today's mean is:

                   $ 3.89

This figure consists of a rectangle and semicircle.
What is the perimeter of this figure?
Use 3.14 for pi.


19.42 cm

20.28 cm

23.42 cm

32.84 cm

Answers

Try this option:
1. for the semicircle p₁=πr=3.1415*3≈9.4248 cm., where r=3 radius of the semicircle;
for the rectangle p₂=4*2+6=14 cm.
2. totaly: p=p₁+p₂=14+9.4248≈23.4248 cm.

answer: 23.42 cm.

Answer:

The perimeter of the figure is [tex]23.42\ cm[/tex]

Step-by-step explanation:

we know that

The perimeter of the figure is equal to the perimeter of the rectangle plus the circumference of a semicircle minus the length of [tex]6\ cm[/tex]

Step 1

Find the perimeter of rectangle

The perimeter of rectangle is equal to

[tex]P=2(L+W)[/tex]

In this problem we have

[tex]L=6\ cm[/tex]

[tex]W=4\ cm[/tex]

substitute

[tex]P=2(6+4)=20\ cm[/tex]

Step 2

Find the circumference of a semicircle

The circumference of a semicircle is equal to

[tex]C=\pi r[/tex]

we have

[tex]r=6/2=3\ cm[/tex] -----> the radius is half the diameter

substitute

[tex]C=3\pi\ cm[/tex]

Step 3

Find the perimeter of the figure

[tex]20\ cm+3\pi\ cm-6\ cm=(20+3.14*3-6)=23.42\ cm[/tex]


Part A: What is the group of points labeled P called? What is the point labeled T called? Give a possible reason for the presence of point T.

Part B: Describe the association between students' test scores and the number of hours they exercise.

Answers

Labeled p is cluster point t is an outlier

Josie has $80. Addie has $60.



In how many months will they both have the same amount of money if Josie saves $30 per month and Addie saves $40?

Answers

Both of them will have the same amount of money in 2 months
Both of them will have the same amount of money in 2 months

Simplify: 4x + 4y + 4z A) 4 + xyz B) 4x3y3z3 C) 4xyz D) 4x + 4y + 4z

Answers

I think that the answer would be D) because there is no way to simplify the first equation. Hope this helps!

Find an explicit rule for the nth term of the sequence.

-5, -25, -125, -625, ...

Answer Choices

A) an = -5 • 5n
B) an = 5 • -5n + 1
C) an = 5 • -5n
D) an = -5 • 5n - 1

Answers

This is a GS with first term -5 and common ratio = 5.
an  = a1. r^(n -1) 
      =  -5 . 5^(n - 1) 

Its D

Final answer:

The explicit rule for the nth term of the sequence is an = -5 * 5ⁿ that is option A is correct.

Explanation:

The explicit rule for the nth term of the sequence is an = -5 * 5ⁿ

To find this rule, we notice that each term is 5 times the previous term but negative. So, the nth term can be represented as an = -5 * 5^(n-1), which simplifies to an = -5 * 5ⁿ.

Therefore, the correct answer choice is A) an = -5 * 5ⁿ.

can someone help me please

Answers

The first step to solve this problem is to compute first for the area of the bigger rectangle:

A = LW

A = 12m (10m)

A = 120 m^2

Next step is to find the area of the smaller rectangle:

A = LW

A = 7m (2m)

A = 14 m^2

The last step is to deduct the area of the smaller rectangle to the area of the larger rectangle:

Area of larger rectangle – Area of the smaller rectangle = Area of the shaded region

120 m^2 – 14 m^2 = 106 m^2

Therefore, the area of the shaded region is 106 square meters.

You paid $80 for a tennis racket. If you found the racket under a sign stating 1/4 off, what must the original retail price have been?

Answers

To solve this problem you must apply the proccedure shown below:
 1. You have that you paid $80 for a tennis racket which was under a sign stating 1/4 off. Therefore, you can express this with the following equation:
 [tex] x-x/4=80 [/tex]
 Where [tex]x[/tex]is the original retail price.
 2. When you solve for [tex]x[/tex], you obtain:
 [tex]3/4x=80 \\ x=106.67[/tex]
 The answer is: [tex]106.67 dollars [/tex]

number 248682 rounded off to the nearest hundred becomes what

Answers

that's a full number
248,682 rounded to the nearest hundred is 249,000

144=8x what is the answer please help me

Answers

Hi there!

To solve for x in this equation, we need to divide both sides of the equation by 8 to isolate x. 

144/8=8x/8
18=x

x=18

Hope this helps!
When you're trying to solve for x, you have to isolate the variable x by reversing whatever step was applied to it. 

Here, it is multiplied by 8. We perform the inverse operation, divide by eight (or multiply by one eighth), on both sides of the equation.

[tex]144=8x[/tex]
[tex] \dfrac{144}{8}= \dfrac{8x}{8} [/tex]
[tex]x=18[/tex]

13 is 20% of what number

Answers

13*5

65 is your answer


(5 because 20 * 5 is 100) 
It's basically working backwards

13 ÷ .20 = 65

65 × .2 = 13

Answer: 65
Other Questions
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