1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alchen [17]
3 years ago
15

Which infinite geometric series can you NOT find the sum?

Mathematics
1 answer:
Oksanka [162]3 years ago
4 0

Answer: C) 127, 152.4, 182.88, 219.456,...

Step-by-step explanation:

You can only find the sum of an infinite geometric sequence if it converges.

One criterion to see if the series converges is if:

aₙ < aₙ₋₁

This means that, as n increases, the value of the terms decreases.

This means that as n tends to infinity, aₙ tends to zero.

Then we only can find the sum of those series where the terms are decreasing.

in A, B and D the terms are decreasing, then we can find the sum of those 3 series.

Now in the case of C, the terms are increasing, then we can not find the sum of that series.

You might be interested in
Find the area and perimeter of the shape below. Help plzzz.
kozerog [31]
Find the area of each shape and add.Let's start with the first semi-circle(half-circle)
If the area of a circle is πr² , then the area of a semi-circle is 1/2πr² where is 22/7 or 3.14, and r is the radius which is 1.8 meters
A=1/2πr²
A=1/2*22/7*1.8*1.8
A=5.09 m²(rounded to nearest hundredth)
Since the semi-circles are two and have the same radius, multiply the area of the first one by two or go through the same process again.
So 5.09 *2=10.18meters square is the area of the two semi-circles
Now, let's find the area of a rectangle  which is length times width, where length is 6 meters and width is (1.8+1.8, because 1.8 is half the width)=3.6 meters
A=l*w
A=6*3.6
A=21.6meters square
Therefore the area of the shape is 10.18m²+21.6m²=219.888m²
4 0
3 years ago
How many pounds of carbon dioxide would you prevent from entering the atmosphere in one year, if you were to replace a 100-watt
VikaD [51]
That's an excellent question but we don't have enough information to answer it. We would need to know how the electrical energy is generated. Nuclear, hydroelectric, coal burning, wind, and natural gas burning all produce different amounts of carbon for the same amount of electrical energy. If the utility that supplies your house uses nuclear or wind, then you can leave both bulbs shining 24/7 and they're not responsible for any carbon.
6 0
3 years ago
Will mark brainly if correct
netineya [11]

Answer:

Answer is 3.5

Step-by-step explanation:

slope is 7/2 which is 3.5:)

6 0
3 years ago
Vallues of 3×-2ײ=7​
mrs_skeptik [129]

Answer:

Step-by-step explanation:

"Find the values of x that satisfy 3x - 2x^2 = 7."  Please do not use " × " to represent a variable; " × " is an operator, the "multiply" operator.

Rearrange these three terms in descending order by powers of x:

-2x^2 + 3x - 7 = 0.   Here the coefficients are a = -2, b = 3 and c = -7, and so the discriminant of this quadratic is b^2-4ac, or 9 - 4(-2)(-7), or 9 - 56, or -47.

Because the discriminant is negative, we'll have two different complex roots here.  The quadratic formula becomes

       -3 ± i√47         -3 ± i√47

x = ----------------- = -------------------

        2(-2)                     -4

6 0
3 years ago
How many numbers between 100 and 200 have 11 as a factor
Minchanka [31]

Answer:

101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199.

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Evaluate z + 2+ z for x = 2, y=-3, z = -4.
    10·1 answer
  • Which statement is true?
    12·2 answers
  • Ce efect are formula=A5,din celula A1? Cand se modifica valoarea din A1?
    8·1 answer
  • What is the equation of the parabola ? <br><br> It’s minimum is at (3,-5) and y intercept of -2
    15·1 answer
  • Can someone please help me with the second question….will give brainliest :(
    15·2 answers
  • Select the graph that matches the function y=3x+7
    14·1 answer
  • Calculate the area and perimeter plz help
    7·1 answer
  • A chorus director surveys students about singing and reading music. The results of the survey are shown in the relative frequenc
    14·1 answer
  • Hopfuly someone will help me this time!
    14·2 answers
  • The square of a non-zero number is equal to 70% of the original number. What
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!