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aalyn [17]
3 years ago
13

Which expression is a difference of cubes 9w^33-y^12 18p^15-q^21 36a^22-b^16 64c^15-a^27

Mathematics
1 answer:
cricket20 [7]3 years ago
6 0
<span>A. 9w^33-y^12
B. 18p^15-q^21
C. 36a^22-b^16
D. 64c^15-a^27   -----> 64c^15 = (4c^5)^3; a^27 = (a^9)^3

Answer: D. </span>64c^15-a^27
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SashulF [63]

Answer:

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Step-by-step explanation:

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3 years ago
Which pairs of variables have a linear relationship? Select
Neko [114]

Answer:

Side length and perimeter of 1 face

Area of 1 face and surface area

Step-by-step explanation:

Suppose you are given cube with side length of x units.

Then

Side length = x units

Perimeter = 4x units

Area of 1 face =x^2 square units

Surface area =6x^2 square units

Volume =x^3 cubic units

A linear relationship is any equation that, when graphed, gives you a straight line.

Consider all options:

A. Side length and perimeter of 1 face is a linear relationship, because the graph of the function y=kx is a straight line.

B. Perimeter of 1 face and area of 1 face is not a linear relationship, because the graph of this relationship is a quadratic parabola with equation y=kx^2.

C. Surface area and volume is not a linear relationship, because the graph of this relationship is a curve with equation y=kx^{\frac{3}{2}}.

D. Area of 1 face and surface area is a linear relationship, because the graph of the function y=kx is a straight line.

E. Side length and volume is not a linear relationship, because the graph of this relationship is a cubic parabola with equation y=kx^3.

6 0
3 years ago
Read 2 more answers
How many solutions does the equation 6z - 3z - 7 = -2 + 3 have?
erik [133]

Answer:

One

Step-by-step explanation:

6z - 3z - 7 = -2 + 3

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Divide each side by 3

3z/3 = 8/3

z = 8/3

There is one solution

6 0
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The sales price of a car is $12,590, which is 20% off the original price. What is the original price?
qaws [65]
We know that the final price after a discount of 20% is $12,590. If the original price was x, the price after discount is 80%<span> of x (</span>100%<span> - 20%). OP (original price) multiplied by (1-20/100) equals $15,737.5

I hope this helps.</span>
8 0
3 years ago
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Help me answer this please
Anna007 [38]

Answer:

im pretty sure its B

Step-by-step explanation:


5 0
3 years ago
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