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
velikii [3]
3 years ago
6

2. Evaluate the geometric series given a = -120, r = 0.5 and n = 6

Mathematics
1 answer:
Tju [1.3M]3 years ago
8 0

Here we're discussing the "nth partial sum of a geom series."

                                                       1 - r^n

The formula for that is s(n) = a(1) --------------- 

                                                         1-r

We can subst. the given values and see where that takes us:

                  1 - (-2)^6        1 - 64

105 = a(1)*---------------- = ----------*a(1)  =  -21*a(1)

                    1-(-2)                3

                                              105

Solving this for a(1):  a(1) = --------- = -5    (answer)

                                              -21

You might be interested in
Expand.If necessary combine like terms.(1+6x)(1-6x)
Anastaziya [24]

Answer:

-36x^2+1

Step-by-step explanation:

(1+6x)(1-6x)

= 1^2(6x)^2

= -36x^2+1

6 0
3 years ago
Read 2 more answers
in Math class we are Learning about Pi which equals 3.14 how do you find the diameter and radius i dont understand it can you gu
kirill [66]
If you're finding diameter or radius based on circumference, use the formula C = πd. You would divide the circumference by pi to get the diameter, then divide the diameter by 2 to get the radius.

If you're finding diameter or radius based on area, use the formula A = πr^2. You would divide the area by pi, then find the square root of that value which is the radius. Just multiply the radius by 2 to find diameter.
7 0
3 years ago
Abandoned mines frequently fill with water. Before an abandoned mine can be reopened, the water must be pumped out. The size of
ale4655 [162]

Answer:

350gallons /minute

Step-by-step explanation:

D = minimun depth of mine

4D-250 = minimum gallon per minute required to pump

4(150)- 250= 350gallon/minute

5 0
3 years ago
If 5 + 20 times 2^2 minus 3x = 10 times 2^- 2x + 5, what is the value of x?
LUCKY_DIMON [66]
The answer to the problem is going to be 3
4 0
3 years ago
What is the value of m in 3(2m-9+6m)=3m+29-7m<br> i got 1/10 but the choices are -3, 2, 5, and 120
kirill [66]
Hello,

3(2m-9+6m)=3m+29-7m
==>3(8m-9)=-4m+29
==>24m+4m=29+27
==>28m=56
==>m=2

Answer B


5 0
3 years ago
Read 2 more answers
Other questions:
  • Each side of a rectangular prism measures 2 inches, and the height is 10 inches. What is the volume?
    6·1 answer
  • Can somebody please help?
    15·1 answer
  • A yard is equal in length to three feet. The function f(x) takes a measurement
    10·1 answer
  • Whats 100,002÷13 dont try calculator or paper
    14·2 answers
  • The mass of the earth is 5.97x10 24 kilograms. the mass of the moon is 7.34 x 10 22 kilograms
    8·1 answer
  • Answer asap<br> honest and simplest form
    11·1 answer
  • Determine the type and number of solutions of −4x2 − 3x + 7 = 0.
    6·1 answer
  • PLEASE HELP!!!!!!!!!!!!!!
    9·1 answer
  • FREE5POINTS+THANKS+GOTTA ANSWER A SIMPLE QUESTION. What's your zodiac sign? owo
    10·2 answers
  • Determine another point on the line given two points on the line.<br> (0,5), (4,1)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!