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
Vikki [24]
3 years ago
11

Complete the recursive formula of the geometric sequence 27,−9,3,−1,

Mathematics
1 answer:
natita [175]3 years ago
5 0

Step-by-step explanation:

a1 = 27

r = -9/27 = -⅓

the formula :

an = a1. r^(n-1)

= 27. (-⅓)^(n-1)

= 3³(-3`¹)^(n-1)

= 3³(-3)^(1-n)

You might be interested in
15s^11-25s^4 factorised <br><br> plz tell me. :)
saveliy_v [14]

For the numeric part, you'll have to find the GCD of 15 and 25, which is 5. So, we can factor a 5 and we have

5(3s^{11}-5s^4)

As for the literal part, you can factor s^4 because it's the power of s with the smallest denominator. So, we have

5s^4(3s^7-5)

8 0
3 years ago
9(a + 2b) + c for a = -3, b = -2, and c = 1.
Snowcat [4.5K]

Answer: -62

Step-by-step explanation:

9( a + 2b) + c

Substitute correct values for all a, b and c.

9( -3 + 2(-2) ) + 1

9( -3 - 4 ) + 1

9(-7) + 1

-63 + 1

-62.  

6 0
3 years ago
Read 2 more answers
Find the value of x in each case. Give reasons to justify your solutions!
ANEK [815]

Answer:

  x = 11°

Step-by-step explanation:

The parallel lines suggest we look to the relationships involving angles and transversals. The angle marked 33° and ∠CAB are alternate interior angles, hence congruent:

  ∠CAB = 33°

5x is the measure of the external angle opposite that internal angle and angle 2x of ΔABC, so it is equal to their sum:

  5x = 2x + 33°

  3x = 33° . . . . . . . . . subtract 2x

  x = 11° . . . . . . . . . . . divide by 3

6 0
3 years ago
Read 2 more answers
(a 2n - a n - 6) (a n + 8)
yawa3891 [41]
Here
2an-an=an
then (an-6)(an+8)
=asqnsq+8an-6an+48
=asqnsq+2an+48answer



sq is square and first We should add or subtract like terms
6 0
2 years ago
Does anyone know this
Bingel [31]

Answer:

t

Step-by-step explanation:

In triangle fgy, side f is the shorter side adjacent to the 90 degree angle and side g is the longer side. In triangle gte, side g is the shorter side adjacent to the 90 degree angle and side t is the longer side.

6 0
3 years ago
Other questions:
  • Now work these out by changing the percentages to fractions first
    5·1 answer
  • PLEASE HELP!-<br> Find the slope of the line
    15·1 answer
  • I need help ASAP please...............
    12·2 answers
  • If you bought a cookie for 80¢ and paid for it with a 5 dollar bill, how much change would you receive?
    14·2 answers
  • Do two congruent polygons satisfy the conditions for similarity ? Why ?
    6·1 answer
  • Slope 2/5, y-intercept 2
    9·2 answers
  • Simplify. 12x • 3x <br> 15 x<br> 15 x2 <br> 36 x2 <br> 36 x
    13·2 answers
  • There are 5 people in Edgar’s family
    8·1 answer
  • Which expresions are equivalent to x+2y+x+2? <br><br> yall please help....
    9·1 answer
  • What is an equation of the line that passes through the points (-6, -5) and<br> (3, -5)?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!