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trasher [3.6K]
3 years ago
14

If (5n^5)^3÷(n^2)^7=875, then n is equal to ....

Mathematics
1 answer:
Stella [2.4K]3 years ago
7 0

Step-by-step explanation:

\frac{(5 {n}^{5} ) ^{3} }{( {n}^{2} ) ^{7} }  = 875

\frac{5 {n}^{15} }{ {n}^{14} }  = 875

5 {n}^{15 - 14}  = 875

5n \:  = 875

n \:  =  \frac{875}{5}

Therefore n = 175

Hope it will help :)❤

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I need help on this what is RS
lana [24]

Answer:

11

Step-by-step explanation:

If RS=TV

5x-9=2x+3

5x-2x=3+9

3x=12

x=4

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11

6 0
2 years ago
the sum of the first six terms of a geometric series is 21/16 . if the common ratio is -1/2 , what is the first term?
Oksanka [162]

Answer:

-84

Step-by-step explanation:

The formula for the nth term of a geometric progression is

Un = ar^n- 1

The sum of the first six terms of a geometric series (U6) = 21/16

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a = First term ??

21/16 = a × (-1/2 )^6- 1

21/16 = a ×(-2^-1)^5

21/16 = a × -2^-6

Cross Multiply

16 × a × -2^-6 = 21

a = 21/16 × -2^-6

a = 21/16 ×- 1/2⁶

a = 21/16 × -1/64

a = 21 ÷(-1/4)

a = 21 × -4

a = -84

The first term = 84

8 0
2 years ago
The mean age of 5 people in a room is 32 years. A person enters the room. The mean age is now 34. What is the age of the person
nikdorinn [45]
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8 0
4 years ago
3/7+-5/11+-5/14+3/11​
Pachacha [2.7K]

Answer:

Hey!

Your answer is 1\frac{5}{8}!

Step-by-step explanation:

Also can be written as 41/8!

HOPE THIS HELPED!

3 0
3 years ago
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Answer:

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