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dedylja [7]
3 years ago
12

In this geometric sequence, what is the common ratio? 104, -52, 26, -13, ...

Mathematics
1 answer:
4vir4ik [10]3 years ago
3 0

Answer:

  -1/2

Step-by-step explanation:

The ratio is found by dividing the second number by the first:

  -52/104 = -1/2

You can verify that this is a "common" ratio by doing the same with successive pairs of numbers:

  26/-52 = -1/2

  -13/26 = -1/2

The common ratio is -1/2.

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Izzy had an 82 and an 88 on his first two tests and believed that he did well enough on his final exam to keep his B average.​ H
Anastaziya [24]

Answer:

73

Step-by-step explanation:

to find the mean you need to add up all grades and divide if by the number of terms you added

(82 + 88 + x) ÷ 3 = 69 (since we don't know the third grade let's call it x)

170 + x = 69 × 3

x = 37

if the digits transposed the the actual grade would be 73

5 0
3 years ago
Determine whether y=4(7)^x represents an exponential function.
gtnhenbr [62]
B
Because the its follows the pattern also b isn’t negative
8 0
3 years ago
A circle of center (-3 , -2) passes through the points (0 , -6) and (a , 0). Find a. <br> Pls
ZanzabumX [31]

Answer:

It passes through the point (3,4). Given that the center of the circle is the point (0,0). We know that the equation of the circle is given by : (x-a)^2 + (y-b)^2 = r^2 where (a,b) is the center and r is the radius.

6 0
3 years ago
Read 2 more answers
Add or Subtract to Simplify:<br> (4x - 2x3) + (5x3 - 4x + 5)
sukhopar [10]

Answer:

<h2>3x³ + 5</h2>

Step-by-step explanation:

( 4x - 2x³ ) + ( 5x³ - 4x + 5)

<u>Remove the parenthesis</u>

That's

4x - 2x³ + 5x³ - 4x + 5

<u>Group like terms</u>

We have

5x³ - 2x³ + 4x - 4x + 5

We have the final answer as

<h3>3x³ + 5</h3>

Hope this helps you

4 0
3 years ago
WHAT ARE RATIONAL NUMBERS ?<br> WHAT ARE IRRATIONAL NUMBERS ?
leva [86]
A rational number is any number that can be represented as a fraction. (7=7/1 or 52 = 26/1 ).
An irrational number is a number like 3.14159 (pi) or anything like that. 

4 0
3 years ago
Read 2 more answers
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