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Romashka-Z-Leto [24]
3 years ago
7

Simplify, and then write in exponential form. Do not evaluate. (7^2)^4

Mathematics
2 answers:
melamori03 [73]3 years ago
7 0

Answer:

7^8

Step-by-step explanation:

(7^2)^4

We know a^b^c = a^(b*c)

(7^2)^4 = 7^(2*4)

           = 7^(8)

vodka [1.7K]3 years ago
6 0
(7x7)(7x7)(7x7)(7x7)
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2) time in Hour = distance/speed → distance = 40,212.39 and speed = 2 Mi/h 

1st: convert miles into km : 1 mile = 1.609344 km and 2 miles = 3.218688 km
2nd: convert speed into km/h → speed = 3.218688 km/h
And time in hour = 40,212.39 / 3.218688 → time = 12,493 hours  OR in days:
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3 years ago
-12x + 18y = 21<br>(6x -9 = -9​
Leokris [45]

Answer:

x = 0 , y = 7/6

Step-by-step explanation:

Solve the following system:

{18 y - 12 x = 21

6 x - 9 = -9

In the second equation, look to solve for x:

{18 y - 12 x = 21

6 x - 9 = -9

Add 9 to both sides:

{18 y - 12 x = 21

6 x = 0

Divide both sides by 6:

{18 y - 12 x = 21

x = 0

Substitute x = 0 into the first equation:

{18 y = 21

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In the first equation, look to solve for y:

{18 y = 21

x = 0

Divide both sides by 18:

{y = 7/6

x = 0

Collect results in alphabetical order:

Answer: {x = 0 , y = 7/6

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Answer:

SSS

Step-by-step explanation:

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Solve for y;-4 -3y&gt;-10
Luden [163]

Answer:

y>2

Step-by-step explanation:

-4-3y>-10

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-3y>-6

y>-6/-3

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3 years ago
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