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
MrRissso [65]
3 years ago
8

the first term in a geometric series is 64 and the common ratio is 0.75. Find the sum of the first 4 terms in a series.

Mathematics
1 answer:
Rufina [12.5K]3 years ago
6 0

hi

u0 = 64       with  u(n+1) = un *0.75  

u3 =  64 *0.75^3   = 27

sum is :      64 *  ( 0.75^4 -1)  / 0.75-1  = 175

manual proof :    64 + 48+36+27 = 175

You might be interested in
F = 0.272727...<br>100f = (100)(0.272727...)<br>100f = ?​
koban [17]

Answer:

<h2>100f = 27.272727...</h2>

Step-by-step explanation:

f = 0.272727...

100f = (100)(0.272727...)

100f = 27.272727...

6 0
3 years ago
Examine the figure. What is the measure of angle a?
pantera1 [17]

A = 180-90-31

A = 59

Answer: 59

4 0
2 years ago
Wht equation describes a parabola that opens up or down and whos vertex is at the point (h,v)
LUCKY_DIMON [66]

Answer:

f(x)=a(x-h)^2+k

Vertex form.

Step-by-step explanation:

You are talking about the vertex form for a parabola.

f(x)=a(x-h)^2+k tells us:

A) The vertex is (h,k).

B) Open up (if a is positive) or open down (if a is negative)

C) a also tells us how much it is vertically stretched or compressed.

7 0
3 years ago
In which figure is point G a centroid?​
NemiM [27]

Answer: I’m pretty sure the second one (b)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Pls help I’ll give you 35 points <br> I need help on theses problems
Nataliya [291]

Answer:

I attached my answer. please, check it.

5 0
1 year ago
Other questions:
  • Pls answer question 9
    14·1 answer
  • DECISION SCIENCE Assume more restrictions. The books pass through two departments: Graphics and Printing, 1. before they can be
    13·1 answer
  • What is an example of when you might need to use decimals and other rational numbers in everyday life?
    10·1 answer
  • Help please!!
    7·2 answers
  • What is 6xy in simplest form?
    7·1 answer
  • Please help ill give brainlest
    13·2 answers
  • Find two consecutive positive odd integers whose product is 35.
    15·2 answers
  • The amount of sales tax on a new car is directly proportional to the purchase price of the car. Victor bought a new car for $30,
    13·2 answers
  • 5(x+3)can you tell me please
    12·2 answers
  • Solve <br> Root 3x+5 - root x-1 =0
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!