Answer:
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Step-by-step explanation:
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Step-by-step explanation:
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Answer:
a = -4.
Step-by-step explanation:
25(√5)^a * (√5) ^3 = 5√5
25*5^a/2 * 5^3/2 = 5*5^1/2
25*5^a/2 = 5*5^1/2 / 5^3/2
25*5^a/2 = 5^1 *5^1/2 / 5^3/2
25*5^a/2 = 5^3/2 / 5^3/2 = 1
5^a/2 = 1/25 = 5^-2
The bases are equal, so
a/2 = -2
a = -4.
Answer: -7/8
Step-by-step explanation:
you need to find a common denominator for all of them
in this case it would be 24
2 18/24 -(- 1 12/24) + (-20/24) -(-9/24) - (+ 4 16/24)
2 18/24 + 1 12/24 - 20/24 + 9/24 - 4 16/24
4 6/24 - 20/24 + 9/24 - 4 16/24
3 10/24 + 9/24 - 4 16/24
3 19/24 - 4 16/24
- 21/24
-7/8
