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
jeka94
3 years ago
12

Find the sum of the series if n = 6, r = 1/4, a = 2.

Mathematics
1 answer:
emmasim [6.3K]3 years ago
4 0

Given =

n=6,

r=1/4

a=2

Sn = a+ar+ar²+ar³+ar⁴+ar⁵= 2+0.5+0.125+0.03125+0.0078125+0.00195~ 2.67

You might be interested in
The commission of selling each iPhone is $30 and the commission of selling each iPad is $20. If you one day sold 4 more iPhones
sineoko [7]
<span>lets assume number of iphones sold = a number of ipads sold = b i sold 4 iphones more than ipad that becomes a = b+4 then the equation of total commission becomes 30a+20b = 520 substituting a =b+4 in the above equation 30(b+4)+20b = 520 30b+120+20b = 520 50b =520-120 50b = 400 b = 400/50 b=8 number of iphones i sold = a = b+4 = 8+4 = 12 number of ipads i sold = 8 so i sold 12 iphones and 8 ipads to earn the commission of $520</span>
4 0
3 years ago
Find the area of this figure. Brainliest to first correct answer. Tysm
larisa [96]
Area of Triangle:
A = 1/2 bh = 1/2 (5)(12) = 30 m^2

Area of semicircle:
A = 1/2 π r^2 = 1/2 π 6^2 = 18<span>π m^2

Area of figure = </span>Area of semicircle + Area of Triangle 
Area of figure = 18π  + 30 m^2

Answer is C.
18π  + 30 m^2
5 0
3 years ago
Read 2 more answers
Solve the equation of exponential decay.
BabaBlast [244]

Answer:

$9,220,000(0.888)^t

Step-by-step explanation:

Model this using the following formula:

Value = (Present Value)*(1 - rate of decay)^(number of years)

Here, Value after t years = $9,220,000(1 -0.112)^t

          Value after t years =  $9,220,000(0.888)^t

3 0
3 years ago
Liz wants to buy a new cell phone. If she buys one now, it will cost $462.00. If Liz waits until her contract is over, she can u
lara31 [8.8K]

Answer:

she would save $47 if she waited.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
PLS HELP ASAP! GIVING BRAINLY
ioda
The answer would be (x+1) and (x+10) so E
4 0
3 years ago
Read 2 more answers
Other questions:
  • Can i get the answer to 9 divide by 1.17
    13·1 answer
  • Which is equal to 3^3 • 3^5? a. 3^−2 b. 3^2 c. 3^8 d. 3^15
    6·1 answer
  • How would you factor x²+10x-2=0
    10·2 answers
  • Tony is writing a fraction equivalent to 27 using the formula 2×m7×n. Which statement about m and n must be true so that Tony's
    11·1 answer
  • 3. What do you notice?
    5·1 answer
  • You invest 5000 dollars in an account at 1.6% interest is compounded annually (once a year) a) write an equation that shows the
    8·1 answer
  • Which angle is larger?​
    14·1 answer
  • HELP PLEASE THIS IS DUE TODAY 50 POINTS
    5·2 answers
  • Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two sides of this t
    14·1 answer
  • Name the following aldehyde: CHO A. 1,4-dimethylethanal B. 3,6-dimethylheptanal C. 1,6-dipropylheptanal D. 2,5-dimethylheptanal​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!