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ololo11 [35]
3 years ago
6

Please help quickly

Mathematics
2 answers:
MatroZZZ [7]3 years ago
8 0

Answer:

See below

Step-by-step explanation:

<h2>3^{-5} is equal to \frac{1}{3^{5} }</h2><h2>so it is C</h2><h2>1/3x3x3x3x3 or \frac{1}{3*3*3*3*3}</h2>
marin [14]3 years ago
3 0

Answer:

Step-by-step explanation:

the following that represents 3^(-5) is

1/(3x3x3x3x3)

the answer is C

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Solve the Linear Quadratic system of equations<br><br> y=x^(2)+2x-9<br> y=-2x+3
Debora [2.8K]

9514 1404 393

Answer:

  (x, y) = (-6, 15) and (2, -1)

Step-by-step explanation:

You can start by subtracting the second equation from the first.

  (y) -(y) = (x^2 +2x -9) -(-2x +3)

  0 = x^2 +4x -12 . . . . . . collect terms

  0 = (x +6)(x -2) . . . . . . . factor

Solutions for x are -6 and +2. These values make the factors zero.

The corresponding solutions for y are ...

  y = -2(-6) +3 = 15

  y = -2(2) +3 = -1

Solutions to the system of equations are ...

  (x, y) = (-6, 15) and (2, -1)

3 0
2 years ago
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2 years ago
Does that look right
Tju [1.3M]

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5 more than the quotient of a number and 8 is 42
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Answer:

<u>The number is 296.</u>

Step-by-step explanation:

Let's call "x" to the number we are looking for.

Now, the problem states that "5 more than the quotient of a number and 8 is 42". This means that this number is being divided by 8, it's also being additioned 5 and the final result is 42. Therefore, the expression of this operations on this number is the following:

\frac{x}{8}+5=42. Let's solve the equation to find x.

1. Write the expression.

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2. Substract 5 from both sides and simplify.

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3. Multiply 8 on both sides and simplify.

8*\frac{x}{8}=37*8\\\\x=296

<u>We have found our number, it's 296!</u>

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2 years ago
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