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lawyer [7]
3 years ago
13

Please solve this quadratic equation:3^2x -9 =0​

Mathematics
1 answer:
Basile [38]3 years ago
4 0

Answer:

{3}^{2} x - 9 = 0 \\ 9x = 9 \\ x = 1

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Answer this question please...
Gnesinka [82]
No values of z make the equations true.
5 0
3 years ago
Give the prime factorization of the number. use exponents when possible <br> 126
nataly862011 [7]

Answer:

=2*3^2 *7

Step-by-step explanation:

Prime factorization means to simplify 126 down to prime numbers

126 = 2*63

     = 2* 9*7

     = 2*3*3*7

Since 2 3 and 7 are prime numbers, we rewrite these with exponents

     =2*3^2 *7

3 0
3 years ago
Your cousin renews his apartment lease and pays a new monthly rent. His new rent is calculated by applying a discount of $50 to
nasty-shy [4]

Answer:

  • $1100

Step-by-step explanation:

Let the rent be x

<u>Discounted rent </u>

  • x - $50

<u>Increase applied</u>

  • 10%

<u>Final rent:</u>

  • (x - 50) + 10% = (x - 50)*1.1

<u>We know this is equal to x + 5% = 1.05x, comparing now</u>

  • 1.1(x - 50) = 1.05x
  • 1.1x - 1.05x = 55
  • 0.05x = 55
  • x = 55/0.05
  • x = $1100
6 0
3 years ago
Which is perpendicular to the line y=-3x-8y
atroni [7]

Answer:

I believe the answer is y = -7/3x

Step-by-step explanation:

When you rearrange the equation, y = -3x - 8y, you will get -7y = -3x.

We want the equation to be equal to y by itself. So we divide -7 from both sides, giving us the equation y = 3/7x.

The graph that is perpendicular to y = 3/7x is it's reciprocal: y = -7/3x

4 0
3 years ago
Read 2 more answers
Which number sentence is true?<br> 8 – 4= 11 – 8<br> 13 – 6 = 6-1<br> 6 – 5 = 7 – 6<br> Done
Anton [14]

Answer:

6-5 = 7-6

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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