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LekaFEV [45]
2 years ago
8

Pls answer we just started doing this today and my teacher expects us to know this :(

Mathematics
2 answers:
irakobra [83]2 years ago
7 0

Answer:

what is that?

Step-by-step explanation:

VashaNatasha [74]2 years ago
5 0
The answer is “Two and a half pounds of dark chocolate cashews cost $37.50”

Since 1 pound of cashews costs $15, you multiply 15 by 2, to get $30, then you multiply 15 by .5 since you still have half a pound left, which then gives you $7.5, then you add 30 to 7.5, which gives you the answer of $37.5
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What is the justification for the first step in proving the formula for factoring the sum of cubes?
Anna11 [10]

Explanation:

The formula isnt correctly written, it should state:

a^3+b^3 = (a+b)(a^2-ab+b^2)

You have to start from (a+b)(a^2-ab+b^2)  and end in a³+b³. On your first step, you need to use the distributive property.

(a+b)(a^2-ab+b^2) = a*(a^2-ab+b^2) + b*(a^2-ab+b^2)

This is equal to

a*a^2-a*(ab) + a*b^2 + b*a^2-b*(ab) + b*b^2 = a^3 - a^2b + ab^2 +ba^2 -b^2a +b^3

Note that the second term, -a²b, is cancelled by the fourth term, ba², and the third term, ab², is cancelled by the fifht term, -b²a. Therefore, the final result is a³+b³, as we wanted to.

5 0
3 years ago
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3 years ago
5 6 costs $150 to rent a party room at Pizza-n-Games, plus $6 per person for pizza and $5 per person for game ckets. The express
creativ13 [48]

Answer:

315

Step-by-step explanation:

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3 years ago
Whats the difference between 8.3 and 8.03
natali 33 [55]
The difference would be 0.27
5 0
4 years ago
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The equation of the graphed line is 2x – 3y = 12.
Viefleur [7K]

Answer:

<em>6</em>

Step-by-step explanation:

The x-intercept is the x-coordinate of the point on the line that intersects the x-axis. At the x-axis, all y-coordinates are 0. Let y = 0, and solve for x.

2x – 3y = 12

2x - 3(0) = 12

2x = 12

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3 years ago
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