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Rina8888 [55]
3 years ago
15

Simplify this expression (5)^ -5 (5)^ 7 please explain how you got the answer

Mathematics
1 answer:
Rina8888 [55]3 years ago
3 0

Answer:

( {5}^{ - 5} ) \times ( {5}^{7} ) \\  \\  \frac{ {5}^{7} }{ {5}^{5} }  =  {5}^{7 - 5}  =  {5}^{2}

the answer is b. 25

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18-23(if you want) I don’t understand what do, please help!
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Answer:

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Step-by-step explanation:

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2 years ago
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beginning at sea level a scuba diver dove 1 2/3 feet into the water , and then dove an additional 3 2/5 feet at what elevation i
skad [1K]

The given details are illustrations of addition and subtractions of fractions.  The scuba driver is at an elevation of -5\frac{1}{15} ft below the sea  level.

Given that:

n_1 = 1\frac 23 --- the first dive

n_2 = 3\frac 25 ---- the additional dive

From the question, we understand that the diver starts at the sea level.

This is represented with 0ft.

So, the diver's elevation (d) is calculated as follows:

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So, we have:

d = 0 - 1\frac 23 - 3\frac 25

d = - 1\frac 23 - 3\frac 25

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Take LCM

d = \frac{-5 \times 5 - 17 \times 3}{15}

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Reduce fraction

d = -5\frac{1}{15}

The above value means that the diver's elevation is at -5\frac{1}{15} ft below the sea  level.

Read more about fractions at:

brainly.com/question/18134643

5 0
3 years ago
2(3-x)-1.4(5-2x)=2x+5.3
Hitman42 [59]
I think the answer is : x = -5.25
7 0
1 year ago
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solong [7]

Answer:

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3 years ago
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Naddika [18.5K]

Answer:

First of all  cant give u the anssswer i am srry but i can give u a hint u need to find eqivelent fractions for the denominators then u can add them

Step-by-step explanation:

8 0
3 years ago
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