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Igoryamba
3 years ago
11

Solve each of the following equations for xx using the same technique as was used in the Opening Exercise.

Mathematics
1 answer:
Brrunno [24]3 years ago
7 0

Answer:

The value of the x is 1/9.  

Step-by-step explanation:

Data provided in the question is:

3^2/x=81

To find out:-        

the value of x.

Solution for the equation:-    

3^2/x = 81\\9/x=81\\9/81=x\\1/9=x\\

On solving the given question or equation by using  mathematics of algebra we find out the value of x to be 1/9.

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Solve please, Thanks.
nataly862011 [7]

Answer:

i dont get it

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Help with Math PLZ (Questions in screenshot)
-Dominant- [34]

1.) Let's say that the circle on the graph below represents x. The arrow is pointing to all the numbers greater than x, which happens to be on -2. If it points right, this means that x can equal to any number greater than -2. So your answer is x > -2.

2.) For inequalities such as these, you can simplify just like what you do for normal equations. Let's isolate x.

x - 7 > 10

--> x > 10 + 7

---> x > 17

3.) 3x \leq 21

--> \frac{3x}{3} \leq  \frac{21}{3}

---> x \leq 7

4.) 5a - 2 < 18

--> 5a < 18 + 2

---> 5a < 20

----> \frac{5a}{5} < \frac{20}{5}

-----> a < 4

5.) 2t + 8 \geq -4(t + 1)

--> 2t + 8 \geq -4t - 4

---> 2t + 4t \geq -8 - 4

----> 6t \geq -12

-----> t \geq -2

7 0
3 years ago
(PLEASE ANSWER) Which expression is the prime factorization of 180X²Y? *
kenny6666 [7]
I have no clue but I think it’s 959583”04&6&(9;
3 0
3 years ago
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Simplify each expression completely. please show work. thanks!
yulyashka [42]
I know the answers but I hate simplifying
40) 9y-12
42) -3x+3y-5
8 0
3 years ago
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Find f(−1) given that f(x)=x3+2x2+3x+4. <br>A. 10 <br>B. -2 <br>C. 2 <br>D. -10
Finger [1]

Answer:

The answer is option C

Step-by-step explanation:

f(x) = x³ + 2x² + 3x + 4

To find f(-1) substitute the value of x that's

- 1 into f(x)

That's

<h3>f( - 1) =  ({ - 1})^{3}  + 2 ({ - 1})^{2}  + 3( - 1) + 4 \\  =  - 1 + 2(1)  - 3 + 4 \\  =  - 1 + 2 - 3 + 4 \\  = 1 - 3 + 4</h3>

We have the final answer as

<h3>f( - 1) = 2</h3>

Hope this helps you

8 0
3 years ago
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