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tigry1 [53]
2 years ago
9

Number 13. Multiply please.

Mathematics
1 answer:
Dafna11 [192]2 years ago
8 0

(x-y)^2 \\\\\\= (x-y)(x-y)\\\\= x * x + (x)(-y)+(-y)(x) +(-y)(-y)\\\\ = x^2 -xy-xy + y^2\\\\=x^2-2xy + y^2

Hope that helps!

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If 1 pound = 16 ounces, what is the weight of the bananas ( 2.5 lbs ) in ounces.
Galina-37 [17]

Answer:

Hi there

Your answer is

40 ounces

Step-by-step explanation:

1lb = 16oz

2.5lbs = xoz

1lb = 16oz

*2.5

2.5lbs = 40oz

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3 years ago
Louise is creating a 1- foot long comic strip if she has marked 0.5 ft on her paper what should she do to find 1 foot? Help plea
Rzqust [24]
Find a straight edge, mark the 0.5ft mark onto the straight edge that way it becomes a 0.5ft "ruler". Move the straight edge next to the mark and add another 0.5 ft.
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3 years ago
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I take 8th grade honors math but i straight up cant figure this out
Rufina [12.5K]

The price of the fries would be $2.50, the price of the drink would be $2.50, and the price of the cheeseburger wold be $7.50.

We can write a set of equations to represent the prices, if 'f' is fries, 'd' is drink, and 'c' is cheeseburger:

c = 3f

f = d

Using these equations, we can then write out the sum of the items also, as it would be c + f + d = 12.50, but as we know that c = 3f and d = f, we can write it as 3f + f + f = 12.50, and then solve:

3f + f + f = 12.50

5f = 12.50

÷ 5

f = $2.50

Now that we know the price of the fries, we know that the price of the drink is the same, so the drink is also $2.50. Then, we can multiply 2.50 by 3 as we know that the cheeseburger is 3 times the cost of the fries, and 2.50 × 3 = 7.50.

I hope this helps!

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3 years ago
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