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miskamm [114]
3 years ago
13

Which expression is equivalent to (3^2)^-2

Mathematics
2 answers:
anastassius [24]3 years ago
8 0

Answer: 1/81

First you simplify it to 3^-4

Then express it with a positive exponent which goes to 1/3^4

Then evaluate it to 1/81

kondaur [170]3 years ago
4 0

Answer:  

The expression which is equivalent to the given expression is given by :

\bf\frac{1}{81}

Step-by-step explanation:

The expression is given to be :

(3^{2})^{-2}

Now, we need to find a expression which is equivalent to this given expression.

(3^{2})^{-2}\\\\\implies (3\times 3)^{-2}\\\\\implies (9)^{-2}\\\\\implies\frac{1}{(9)^2}\\\\ \implies \frac{1}{81}

Hence, The expression which is equivalent to the given expression is given by :

\bf\frac{1}{81}

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Solve 6x²−10x=−50 by completing the square
Irina-Kira [14]

The solutions to the quadratic equation using completing the square method are 5/6 - [(5i/6)√11]/6 and 5/6 + [(5i/6)√11]/6.

<h3>What are the solution(s) to the given quadratic equation?</h3>

Given the equation in the question;

6x² − 10x = −50

Using completing the square method

First, divide each term by the coefficient of x²

6x²/6 − 10x/6 = −50/6

x² − 10x/6 = −50/6

Now, we take the half of the coefficient of x and square it.

(-10/6 ÷ 2)² = (-10/12)² = 25/36

Now we add 25/36 to both sides

x² − 10x/6 + 25/36 = −50/6 + 25/36

Next, we rewrite as a perfect square on the left.

( x - 5/6)² = −50/6 + 25/36

( x - 5/6)² = −275/36

Take square root of both sides

x - 5/6 = ±[√( (5i/6)² × 11 )]/6

x - 5/6 = ±[ (5i/6)√11 ]/6

x  = 5/6 ± [ (5i/6)√11 ]/6

x = 5/6 - [(5i/6)√11]/6, 5/6 + [(5i/6)√11]/6

The solutions to the quadratic equation using completing the square method are 5/6 - [(5i/6)√11]/6 and 5/6 + [(5i/6)√11]/6.

Learn more about solving quadratic equation using completing the square here: brainly.com/question/12356597

#SPJ1

8 0
2 years ago
What is the answer to 4x-10y=12
Ksenya-84 [330]
4x - 10y = 12
2 (2x - 5y) = 12
2x - 5y = 12 / 2
2x - 5y = 6
This is the real answer.
Now,
if you want to find "x", it will be,
2x - 5y = 6
2x = 6  + 5y
x = (6 + 5y) / 2

And, 
if you want to find "y", it will be,
2x - 5y = 6
5y = 2x - 6
y = (2x - 6) / 5

7 0
3 years ago
Based on the diagram above, a student determined the hypotenuse of the triangle to be 6√3 Determine if the student's answer is c
Anarel [89]

Answer:

D) No, the hypotenuse should be 12.

Step-by-step explanation:

<em>Hypotenuse is the side opposite to the 90 degrees angle.</em>

<em>'6' is the opposite side to the given angle i.e. it is opposite from angle 30 degrees.</em>

<em>Step 1: Use the sin formula to find the hypotenuse.</em>

Sin (angle) = opposite/hypotenuse

<em>Step 2: Substitute the values in the formula</em>

Sin (30) = 6/hypotenuse

1/2 = 6/hypotenuse

hypotenuse = 6x2

hypotenuse = 12

Therefore, the answer is option D; No, the hypotenuse should be 12.

!!

3 0
3 years ago
Find the slope of the line that passes through (4,-5) and (-2,9)
iogann1982 [59]

Answer:

sorry i dont know

3 0
3 years ago
Read 2 more answers
Write 0.4 as a fraction or mixed number
sammy [17]

the answer of 0.4 is 2/5 or 2 1/5

4 0
3 years ago
Read 2 more answers
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