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Roman55 [17]
3 years ago
7

How can you use expressions and models to determine if expressions are equivalent

Mathematics
1 answer:
Hunter-Best [27]3 years ago
6 0

To check for equivalence, use properties of operations such as the Distributive Property. Two expression are said to be equivalent if they resulted in the same number after evaluation of each. You can both expand and factor expressions to generate equivalent expressions. 

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Please help with this math problem
zimovet [89]

x=2+½*\sqrt{10}

or

x=2-½*\sqrt{10}

Answer:

Solution given:

y=2x²-5x+6.....[1]

y=3x+3.........….[2]

solving equation 1&2

2x²-5x+6=3x+3

2x²-5x-3x+6-3=0

2x²-8x+3=0

comparing above equation with ax²+bx+c=0 we get

a=2

b=-8

c=3

by using quadratic equation

x=\frac{+8±\sqrt{(-8)²-4*2*3}}{2*2}

x=\frac{+8±2\sqrt{10}}{4}

taking positive

x=\frac{+8+2\sqrt{10}}{4}

x=2+½*\sqrt{10}

taking negative

x=2-½*\sqrt{10}

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2 years ago
If a sweater sells for $ 48 after a 25 % markdown what was the original price
stiks02 [169]
The original price was $64
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vivado [14]
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yan [13]

Now,

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