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
gulaghasi [49]
3 years ago
13

The first term of geometric sequence is 7 and the common ratio is -2. Find the 9th term.

Mathematics
1 answer:
kobusy [5.1K]3 years ago
5 0
a_{1} = 7.

Ratio means multiply/divide.
To get the next number, multiply number by common ratio.
To get a previous number, divide by common ratio.

Since we want the next number...
2nd term: 7 x -2 = -14
3rd term: -14 x -2 = 28
4th term: 28 x -2 = -56
5th term: -56 x -2 = 112

Keep going until 9th term!
You might be interested in
Find the reference angle for 105 degree angle.
m_a_m_a [10]

Answer:

75° degree angle

Step-by-step explanation:

Since the angle 105° is in the second quadrant, subtract 105° from 180° .

180-105=75

6 0
2 years ago
Read 2 more answers
Solve. −3/5x +1/5 > 7/20
Reika [66]
-3/5x + 1/5 > 7/20
-3/5x > 7/20 - 1/5
-3/5x > 7/20 - 4/20
-3/5x > 3/20
x < 3/20 * - 5/3
x < -15/60 reduces to -1/4

3 0
3 years ago
Read 2 more answers
Match wash hypotenuse length with the leg lengths that will create a right triangle
Ugo [173]
Hope this can help you

5 0
2 years ago
Read 2 more answers
Sue drank 2/5 of her water bottle and sally drank 4/10 of her water bottle how much water did both girls drank?
stealth61 [152]

well, clearly the LCD from the denominators of 5 and 10 is just 10, thus

\bf \stackrel{\textit{Sue}}{\cfrac{2}{5}}+\stackrel{\textit{Sally}}{\cfrac{4}{10}}\implies \stackrel{\textit{LCD of 10}}{\cfrac{(2)2~~+~~(1)4}{10}}\implies \cfrac{2+4}{10}\implies \cfrac{6}{10}\implies \stackrel{\textit{simplified}}{\cfrac{3}{5}}

3 0
3 years ago
Which answer choice shows 21.97 written in expanded form? A. 2 + 1 + 9 + 7 B. 20 + 1 + 0.9 + 0.7 C. 20 + 10 + 0.9 + 0.07 D. 20 +
Simora [160]

Answer:

20 + 1 + 0.9 + 0.07

Step-by-step explanation:

Given the number 21.97 ;

To wite in expanded form:

Tens ___ Unit ____ tenth ____ hundredth

2_______ 1 _______ 9_________ 7

2 = 20

1 = 1

9 = 0.9

7 = 0.07

Hence,

20 + 1 + 0.9 + 0.07

6 0
3 years ago
Other questions:
  • Solve the equation from the points:)
    12·1 answer
  • A big cruise ship dropped anchor off the Caribbean island of Antigua. The heavy anchor dropped into the water at a rate of 2.5 m
    7·1 answer
  • Two sides of a triangle measure 6 cm and 8 cm. What is the possible measurement of the 3rd side of the triangle
    6·1 answer
  • Hurry ASAP need help nowww
    13·2 answers
  • How to do this question plz answer me step by step plzz plz please​
    9·1 answer
  • A bottle-filling process has a low specification limit of 1.8 liter and upper specification limit of 2.2 liter. The standard dev
    10·1 answer
  • Whats a integer ,can someone answer this a short explanation ?
    12·2 answers
  • What is an<br> equation of the line that passes through the points (-4, -1) and (3,-8)?
    12·1 answer
  • PLEASE HELP
    8·1 answer
  • What is the equation of a hyperbola with a = 1 and c = 9? Assume that the transverse axis is horizontal.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!