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Vika [28.1K]
3 years ago
5

Principal fourth root of 81

Mathematics
1 answer:
konstantin123 [22]3 years ago
5 0

Answer: 3

Step-by-step explanation:

3 x 3 x 3 x 3 is 81

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Simplify (36/81) raised to the power -1/2
rosijanka [135]

Step-by-step explanation:

Hey, there!!

I hope you mean,

\frac{ - 1}{2}  \: means \:  \sqrt{}

and

36 =  {6}^{2}  \: and \: 81 =  {9}^{2}

so \: \:  \sqrt{ \frac{ {6}^{2} }{ {9}^{2} } }

or \: (  { \frac{ {6}^{2} }{ {9}^{2} }) }^{ \frac{ - 1}{2} }

so, the answer is 6/9 or, 2/3.

<em>Hope</em><em> </em><em>you</em><em> </em><em>are</em><em> </em><em>searching</em><em> </em><em>this</em><em>.</em><em>.</em><em>.</em>

6 0
3 years ago
Alexa has finished her culinary training program and is now working full-time as a chef in a hotel resort restaurant. She has tr
otez555 [7]

Answer: The budget of Alexa is increased by $100.

Explanation:

It is given that the current income of Alexa is 3 times of her previous income.

Her previous salary was $800 and current salary was $2400.

Expenses =   Rent  + Utilities  + Groceries  + Savings  + Bus

The sum of previous expenses is,

Previous expenses = $300 + $60 + $200 + $100 + $30 = $690

The sum of current expenses is,

Current expenses = $300 + $60 + $250 + $150+ $30 = $790

Effect of income on expenses is the difference of current expenses and previous expenses.

Effect of income on expenses = $790 - $690 = $100

Therefore, the budget of Alexa is increased by $100.

3 0
4 years ago
Read 2 more answers
Can anybody help me please
klio [65]

Answer:

x    y

0   -1

-1    0

-8    7

Step-by-step explanation:

y = -x - 1

when x = 0, y = -1

when y = 0

0 = -x - 1

x = -1

when x = -8,

y = -(-8) - 1

y = 7

8 0
3 years ago
Read 2 more answers
Alvin has a prism-like water tank whose base area is 0.90.90, point, 9 square meters and height is 0.60.60, point, 6 meters. He
Dominik [7]

Answer:

2 fishes

Step-by-step explanation:

5 0
3 years ago
which expression is equal to 2 square root of 28 - 5 the square root of 63? a. -11 square root of 7, b. -37 the square root of 7
adell [148]

Answer:

<u>The correct answer is A. - 11 square root of 7.</u>

Step-by-step explanation:

We have the expression 2 √28 - 5 √ 63 and we have to find and equal expression.

Let's simplify it:

2 √28 - 5 √ 63

2 √7 * 4 - 5 √ 9 * 7 (28 is also equal to 7 * 4 and 63 is equal to 9 * 7)

2 * 2 √7  - 5 * 3 √ 7

4 √7 - 15 √7

- 11 √7

<u>The equal expression is A. - 11 square root of 7.</u>

6 0
3 years ago
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