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zlopas [31]
3 years ago
12

Determine whether the sequence is arithmetic or geometric. Sequence 1: –10, 20, – 40, 80, ... Sequence 2: 15, – 5, – 25, – 45, .

.. Which of the following statements are true regarding Sequence 1 and Sequence 2.
Mathematics
1 answer:
Pie3 years ago
3 0

Answer:

1. geometric 2. arithmetic

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Pre cal application: arithmetic and geometric sequences and series 1. a display of cans on a grocery store consists of 20 cans o
Paha777 [63]
This sequence starts with an initial set; let’s call it s1. This set contains 20 cans, and every set following would have two less cans than the last set. So,

s1=20
s2=s1-2=18
s3=s2-2=16
•
•
•
s9=s8-2=4

How many cans in the display represents the value of each set added together, so we can denote this as

s1+s2+s3+...+s9

and replacing with values:

20+18+16+...+4 = 108

The number of cans in the display equals 108.

(The set notation seems weird, but by practicing this application now, the Calculus version will seem easier.)
8 0
3 years ago
On a number line what is the distance between -3/2 and 6?
sesenic [268]

Answer:

  • 7.5 units

Step-by-step explanation:

The distance is always positive and is same as the absolute value of subtraction of the two numbers on the line.

<u>This can be shown as:</u>

  • |-3/2 - 6| =
  • |-1.5 - 6| =
  • |-7.5| =
  • 7.5

or

  • | 6 - (-3/2)| =
  • |6 + 1.5| =
  • |7.5| =
  • 7.5
6 0
3 years ago
Read 2 more answers
Assume that random guesses are made for nine multiple choice questions on an SAT​ test, so that there are nequals9 ​trials, each
Marina86 [1]

Answer:  Find the probability that the number x of correct answers is fewer than 4 = 0.6087

Step-by-step explanation: Please find the attached files for the solution

6 0
3 years ago
For what value of p will the pair of linear equations have infinitely many solutions (p-3)x + 3y = p , px+ py = 12
sleet_krkn [62]

Answer: p = 6


Step-by-step explanation:

HI !


 px + 3y - ( p-3)=0


a₁ = p , b₁ = 3 , c₁ = - (p-3)


=====================


12x + py - p=0


a₂ = 12  , b₂ = p , c₂ = -p


since , the equations have infinite solutions , 


a₁/a₂ = b₁/b₂ = c₁/c₂


p/12 = 3/p =  p-3/p



--------------------------------------


p/12 = 3/p


cross multiply ,


p² = 36


p = √36

 p = 6


for the value of p = 6 , the equations will have infinitely many solutions





5 0
3 years ago
TIMED
Rudik [331]
-x^2 + 4x + 12 = -3x + 24

-> x^2 - 7x + 12 = 0

-> (x-3)(x-4) = 0

-> x= 3 or 4

so y = 15 when x = 3, y = 12 when x = 4
6 0
3 years ago
Read 2 more answers
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