2 years ago

How can you prove a polynomial identity?

1 answer:

3 0

Answer:

To show that an equation is an identity: Start with either side of the equation and show that it can algebraically be changed into the other side. Or start with both sides of the equation and show that they both can be changed into the same algebraic expression.

Step-by-step explanation:

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A old computer model that cost $599(whole) is marked down 5%. How much money will the customer save (what is the discount only)?

Butoxors [25]

Answer:

The discount is 29.95

Step-by-step explanation:

599 x .05= 29.95

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2 years ago

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Translate the following word phrase into nine times the difference of 5 and y

emmasim [6.3K]

Answer: 9 * (5 - y)

Explanation:

Times: multiplication

Difference: subtraction

y: the unknown variable

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3 years ago

Solve, using the substitution method.

ss7ja [257]

Answer:

(-6,-5)

Step-by-step explanation:

X+y=-11

solve for x

x=-11-y

substiute x value into 2nd equation

2x-3y=3

2(-11-y)-3y=3

-22-2y-3y=3

-5y=25

y=-5

substitute -5 for y in either equation to find x

x+y=-11

x+-5=-11

x=-6

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2 years ago

What’s the answer???

enyata [817]

Nikkis charges are 20,40,50,80. Dave’s charges are 25 and 37.5.

5 0

2 years ago

How many 2/5 cups of servings are in 10 cups of flour?

Inga [223]

10 / (2/5)...when dividing with fractions, flip what u r dividing by, then multiply
10 * 5/2 = 50/2 = 25...so there are 25 of them

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2 years ago