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loris [4]
3 years ago
5

Geometric sequence -1, -5, -25, -125 the 9th term

Mathematics
1 answer:
Anna [14]3 years ago
4 0
A9th = -1* 5^(n-1)

a9th = -1*5^(9-1)
a9th = -1*5^(8)
a9th = -390625

Hope this helps!
You might be interested in
BRAINLIST 69 POINTS Solve the problems. When you have finished, submit this assignment to your teacher by the due date for full
nlexa [21]
A)
Withdraws--5.23, -5.22, and -7.89
Deposits-34.98, 51.02, and 51.22
(Rational numbers include integers, whole numbers, decimals that don't repeat or go on forever, and fractions)

B)
-7.89, -5.23, -5.22, 34.98, 51.02, 51.22
(Negatives are less than 0, so when the negative gets bigger, it means that the number is becoming less, so the opposite of positive numbers)

C)
98+34.98+51.02+51.22= 235.22
235.22- 5.22-5.23-7.89= 216.88
216.88 is the answer
(since withdraws are subtracting from the total, you want to add up all of the positive numbers so the deposits plus the amount she had in the beginning, and then subtract the withdraws)

Hope this helps!
7 0
4 years ago
What are the excluded values of x for x + 1/ x^2-1
Snezhnost [94]

The excluded values of x are x=1 and x=-1

Explanation:

The given expression is \frac{x+1}{x^2-1}

The excluded values are the values in the fraction which makes the denominator equal to 0.

Thus, from the definition of excluded values, let us equate the denominator to 0.

Hence, we have,

x^{2} -1=0

Adding both sides of the equation by 1, we get,

x^{2} =1

Taking square root on both sides of the equation, we get,

x=\sqrt{1}

Simplifying, we get,

x=\pm1

Thus, the excluded values of x are x=1 and x=-1

6 0
4 years ago
HELPPPPPP ASAP I REALLY NEED HELP 20points
Nezavi [6.7K]

Answer:

x^2y^{11} / 16

Step-by-step explanation:

Hope this helped!

3 0
3 years ago
Read 2 more answers
Perform the indicated operation and simplify the result.
Finger [1]

Answer:

7/ (3a-1)

Step-by-step explanation:

3a^2 -13a +4        28+7a

------------------ * --------------------

9a^2 -6a+1         a^2 -16

Factor

(3a-1)(a-4)           7(4+a)

------------------ * --------------------

(3a-1) (3a-1)        (a-4)(a+4)

Cancel like terms

1                    7

------------------ * --------------------

(3a-1)                  1

Leaving

7/ (3a-1)

3 0
4 years ago
Luisa was studying weather
artcher [175]

Answer:

lusia was studing weather doesnnot she

5 0
3 years ago
Read 2 more answers
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