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tiny-mole [99]
3 years ago
13

Explain how you would use the commutative property of multiplication to answer 7x3

Mathematics
1 answer:
zhenek [66]3 years ago
4 0
The commutative property would be 7×3=3×7
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Which of these side lengths makes the triangle obtuse?<br> 15, 36,
gogolik [260]

Answer:

I believe the answer is 36.

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3 years ago
Use a graphing calculator to sketch the graph of the quadratic equation, and then give the coordinates for the x-
Umnica [9.8K]

Given:

The quadratic equation is

y=6x^2-15x+6

To find:

The x-intercepts of the given equation.

Solution:

We have,

y=6x^2-15x+6

Splitting the middle term, we get

y=6x^2-12x-3x+6

y=6x(x-2)-3(x-2)

y=(x-2)(6x-3)

For x-intercepts, y=0.

(x-2)(6x-3)=0

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x-2=0\text{ and }6x-3=0

x=2\text{ and }6x=3

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x=2\text{ and }x=0.5

So, the x-intercepts are (0.5,0) and (2,0).

Therefore, the correct option is a.

5 0
2 years ago
3.27525 in expanded form
Vikentia [17]

three and twenty-seven thousand, five hundred twenty-five hundred-thousandths
5 0
3 years ago
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( – 1, – 5) 7x+2y=13, 4x+4y=14
serious [3.7K]

Answer:

{x,y} = {6/5,23/10}

Step-by-step explanation:

 [1]    7x + 2y = 13

  [2]    4x + 4y = 14  <---------- linear equations given

Graphic Representation of the Equations : PICTURE
2y + 7x = 13        4y + 4x = 14  

Solve by Substitution :

// Solve equation [2] for the variable  y

[2]    4y = -4x + 14

[2]    y = -x + 7/2

// Plug this in for variable  y  in equation [1]

  [1]    7x + 2•(-x +7/2) = 13

  [1]    5x = 6

// Solve equation [1] for the variable  x

  [1]    5x = 6

  [1]    x = 6/5

// By now we know this much :

   x = 6/5

   y = -x+7/2

// Use the  x  value to solve for  y

   y = -(6/5)+7/2 = 23/10

// Plug this in for variable  y  in equation [1]

 [1]    7x + 2•(-x +7/2) = 13

  [1]    5x = 6

// Solve equation [1] for the variable  x

 [1]    5x = 6

[1]    x = 6/5

// By now we know this much :

   x = 6/5

   y = -x+7/2

// Use the  x  value to solve for  y

  y = -(6/5)+7/2 = 23/10

4 0
2 years ago
Robyn opened a bank account to save her birthday money. it was paying 3.75% interest. then the interest rate went up by 0.65%. h
Savatey [412]
Her new interest rate would be 4.40%
8 0
3 years ago
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