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oee [108]
3 years ago
10

Factor this equation

Mathematics
1 answer:
Artyom0805 [142]3 years ago
4 0
First of all, this isn't an equation. There's no equal sign, so it's just an expression.

9x^2-27xy

9x(x-3y)

This is now factored. I pulled out the greatest common factor:)
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Evaluate the expression for X=6 y= -1 4x + 5y
rodikova [14]
<h2>Answer:</h2>
  • 19 ans.
<h2>Step-by-step explanation:</h2><h3>Given:</h3>
  • x = 6
  • y = -1
<h3>To Find:</h3>
  • Evaluate 4x + 5y
<h3>Solution:</h3>

We know the value of x and y,

x = 6 and y = -1 [Given]

<u>Substitute the </u><u>value,</u>

  • 4x + 5y
  • 4(6) + 5(-1)
  • 24 + (-5)
  • 24 - 5
  • 19 Ans.
8 0
2 years ago
Please answer within 7 minutes !!
Gnesinka [82]

Step-by-step explanation:

x = by - 3/2

x + 3/2 = by

y = x/b + 3/(2b)

now compare this to the first equation :

y = 2x + 3

the system has infinite solutions, if both equations are actually identical.

and they are only identical, if b = 1/2

y = x/(1/2) + 3/(2 × 1/2) = 2x + 3

3 0
2 years ago
This is from Khan academy I have to attach a PNG if you can help me solve it! Thank you!
Elenna [48]

Step-by-step explanation:

\frac{5 {}^{  - 4x + 7} }{125 {}^{x} }

\frac{5 {}^{ - 4x + 7} }{5 {}^{3x} }

5 {}^{ - 4x + 7 - 3x}

5 {}^{ - 7x + 7}

7 0
2 years ago
At Best Buy they have a 60" TV that sells for $1250 and is on sale for 15% off. If the sales tax is 6.5%, what is the final cost
NNADVOKAT [17]

Answer:

Step-by-step explanation:

The sale price = Initial Cost - 15% of the initial Cost

The sale price = 1250 - 15/100 * 1250

The sale price = 1250 - 187.5

The Sale Price = 1062.5

Now you add on the sales tax

Cost with Sales Tax = 1062.50 + 6.5/100 * 1063

Cost with Sales Tax = 1062.50 + 69.06

Cost with Sales Tax = 1131.56 dollars.

7 0
3 years ago
How do i divide and multiply rational expressions?
notka56 [123]

Answer:

To multiply rational expressions, first factor all numerators and denominators and cancel any factors you can. Then multiply what you have left.

Step-by-step explanation:

4 0
4 years ago
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