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pentagon [3]
2 years ago
11

Is y=-2/5x inverse or direct variation

Mathematics
1 answer:
liraira [26]2 years ago
3 0

Answer:

direct

Step-by-step explanation:

The standard form of an equation representing direct variation is

y = kx ← k is the constant of variation

The standard form of an equation representing inverse variation is

y = \frac{k}{x} ← k is the constant of variation

y = - \frac{2}{5} x ← represents direct variation with k = - \frac{2}{5}

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Find the surface area of a cylinder with the height of 10 inches and a base diameter of 6 in ​
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Answer:

339.24

Step-by-step explanation:

To find the surface area, you will need to the the area of the base of the cylinder. To do that, use the formula A=pi (r)^2

The radius is half the diameter do r=3

3.14(3)^2 should give you about 28.27.

This is the area of the top and bottom of the cylinder.

Now, do 28.27x10=282.7 to find the height surface area.

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SA= about 339.24

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2 years ago
Which answer shows this equation written in standard form?
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I don’t understand this is there a longer question?
8 0
3 years ago
Multiply: (5x2y – 3xy2)(3xy2 + 5x2y)<br> Please help I need to get this one right!
Aliun [14]

Answer:

(1): "*-5x2y" was replaced by "*(-5x2y)".

(2): "x2"   was replaced by   "x^2".  1 more similar replacement(s).

STEP

1

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Equation at the end of step 1

 (3x • (y2)) • (0 -  (5x2 • y))

STEP

2

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Equation at the end of step

2

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 3xy2 •  -5x2y

STEP

3

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Multiplying exponential expressions :

3.1    x1 multiplied by x2 = x(1 + 2) = x3

Multiplying exponential expressions :

3.2    y2 multiplied by y1 = y(2 + 1) = y3

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Is the function represented by the table non-linear?
Vladimir79 [104]

Answer:

Step-by-step explanation:

Yes because it has a constant rate of change

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3 years ago
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