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
WARRIOR [948]
3 years ago
11

Find a2 and a3 for the geometric sequence 4, a2, a3, 108.

Mathematics
1 answer:
LekaFEV [45]3 years ago
3 0

9514 1404 393

Answer:

  a2 = 12

  a3 = 36

Step-by-step explanation:

Terms of a geometric sequence have a common ratio. If we call that ratio r, then we have ...

  a2 = 4r

  a3 = (a2)r = 4r^2

  108 = (a3)r = 4r^3

  27 = r^3 . . . . . . . . . . . divide by 4

  3 = r . . . . . . . . . . cube root

__

  a2 = 4(3) = 12

  a3 = 12(3) = 36

You might be interested in
A rectangular field is 0.35 kilometers long and 0.3 kilometers wide. What is the area of the field in square meters? Do not roun
MakcuM [25]
A=l*w
A=0.35 km*0.3=0.05 km^2
we transform in meters
0.05 km^=50m^2
7 0
4 years ago
Which answer choice shows the decimals in order from greatest to least ?
dusya [7]
It’s A because I looked it up
3 0
3 years ago
Can some figure this out please
stiv31 [10]

Answer:

its  b

Step-by-step explanation:

if you look at the chart

study=3

if it was 3% then it would smaller

but its 30% because it  is bigger than 3 %

therefore its b

your welcome

5 0
3 years ago
Read 2 more answers
Lin is paid $90 for 5 hours of work. She used the following table to calculate how much she would be paid at this rate for 8 hou
ycow [4]

Answer:

It was used as the multiplier because the 5 represents the hours she's worked. If she uses the 1/5 graph she will find the unit rate of each time she gets paid an hour.

Step-by-step explanation:

7 0
4 years ago
Use the properties of 30-60-90 and 45-45-90 triangles to solve for x in each of the problems below. Then decode the secret messa
diamong [38]

These problems are solved using the trigonometric function. Trigonometric functions provides the ratio of different sides of a right-angle triangle.

<h3>What are Trigonometric functions?</h3>

The trigonometric function refer to function that are periodic in nature and which lend insight to the relationship between angles and the sides of a triangle that is right angled.

The solutions to x in the respective problems is given as follows:

1st.) x = 5 /Sin(30°)

x = 10

!) sin(45°) = 4/x

x = 4/sin(45°)

x = 4√2

I) Cos(45°) = √3 / x

x = √3 / Cos(45°)

x = √6

E) Tan(60°)

= (3√3) / x

x = (3√3) / 3

W) It is to be noted that for right-triangle that is isosceles in nature, the angle made by the legs and the hypotenuse is always 45°.

x = 45°

N) x² + x² = (7√2)²

x = 7

V) Tan(60°) = 7 / x

x = 7√3/3

K) x² + x² = (9)²

x = 9/√2

Y) Sin(60°) = 7√3/x

x = 14

M) Sin(30°) = x/11

x = 11/2

T) Sin(45°) = x/√10

x = √5

A) x + 2x + 90° = 180°

x = 30°

O) Sin(45°) = √2 / x

x = 2

R) Tan(30°) = x / 4

x = 4/√3

= 4√3 / 3

S) Sin(60°) = x / (10/3)

x = (5√3) / 3

Learn more about Trigonometric functions at:
brainly.com/question/1143565
#SPJ1

3 0
2 years ago
Other questions:
  • PLEEEEEAAAAAASEEEEE HELLLPPPPPP!!! 20 POINTS!!!!<br><br> list question number then answer
    11·1 answer
  • It is 1.7 km from Carmen's house to the nearest mailbox. How far is it in meters?
    6·1 answer
  • The probability of obtaining a head when a certain coin
    8·2 answers
  • Ow can 38 over 6 be expressed as a decimal?
    7·2 answers
  • D=10 <br><br> help please,, i’ll do anything
    10·1 answer
  • A dilation centered at the origin is applied to the line y = 3x + 5.
    11·2 answers
  • True or false concave polygon has all interior angles describe any angles less than 180 Degrees degrees??
    11·1 answer
  • At the school carnival, the sixth graders are making directional arrows, as shown below.
    8·1 answer
  • Could I get some help with this problem? Thank you so much! C:
    10·1 answer
  • Please help me <br> i'll mark u as brainiest if u get it right
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!