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4 years ago

For all real numbers a and b, a+b=b+a

1 answer:

8 0

This is the "commutative property of addition." The order in which you add numbers together doesn't matter, and doesn't change your final results.

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Can someone please help me factor this

Dmitry_Shevchenko [17]

Answer:

$\huge\boxed{\bf\:1}$

Step-by-step explanation:

$\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } \times \frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }$

Take $\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 }$ & factorise it at first.

$\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } \\= \frac{\left(x-3\right)\left(x-1\right)}{\left(x-4\right)\left(x-3\right)}\\= \frac{x-1}{x-4}$

Now factorise the next set : $\frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }$ .

$\frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }\\= \frac{\left(x-4\right)\left(x+6\right)}{\left(x-1\right)\left(x+6\right)}\\= \frac{x-4}{x-1}$

Now, multiply the two simplified results.

$\frac{ x ^ { 2 } -4x+3 }{ x ^ { 2 } -7x+12 } \times \frac{ x ^ { 2 } +2x-24 }{ x ^ { 2 } +5x-6 } ^ { }\\= \frac{x-1}{x-4}\times \frac{x-4}{x-1} \\= \frac{\left(x-1\right)\left(x-4\right)}{\left(x-4\right)\left(x-1\right)} \\= \boxed{\bf\: 1}$

$\rule{150pt}{2pt}$

7 0

3 years ago

In the expression, |7x – 5| = 39, since the expression inside parenthesis can be evaluated to a positive number or a negative nu

Ket [755]

Answer: The two equations are - (7x -5) = 39 or 7x - 5 = 39

Step-by-step explanation:

7 0

3 years ago

here a subtraction problem that has been solved incorrectly for 44-16=28 choose the addition sentence that check this subtractio

Vlad [161]

Answer:

Answer:

28+16=44

Step-by-step explanation:

point of correction it has been solved correctly

when subtracting 44 - 16 it gives you 28

=> 44 - 16

=> 28

SO IN ORDER TO CHECK IF THE PROBLEM WAS SOLVE CORRECTLY

you will minus 28 from one of the numbers before the equal sign

the correct option is 28 + 16 equals to 44

=> 28+16=44

5 0

3 years ago

Win bakes fruit bars in a pan shaped like a rectangular prism. The volume of the pan is 120 in³. The length of the pan is 8 in.,

Alex Ar [27]

Length = 8 in
height = 1 1/2 inch = 3/2 inch
width = w inch

Volume = length * width * height
⇒ 120 = 8 * w * 3/2
⇒ 120 = 12w
⇒ w = 120/12
⇒ w = 10 inch

Width of the pan is 10 inch☺

3 0

4 years ago

ABCD is a parallelogram. If measurement C=98, then what is measurement A ?

IrinaVladis [17]

It should be 98, as A = C and B= D

5 0

4 years ago

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