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AURORKA [14]
3 years ago
8

The variable y varies directly with the variable x.

Mathematics
2 answers:
Phantasy [73]3 years ago
7 0

Answer:

21

Step-by-step explanation:

y = kx

3 = 2k

k = 3/2

y = (3/2)x

y = (3/2)(14)

y = 21

Roman55 [17]3 years ago
3 0

Answer:

A

Step-by-step explanation:

Took the test

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An easy question all wrong or unhelpful or no-work answers will be reported.
miss Akunina [59]
Elimination:

7x - 3y = 20
5x + 3y = 16
(add)
12x = 36
÷ 12
x = 3

(5 × 3) + 3y = 16
15 + 3y = 16
- 15
3y = 1
÷ 3
y = 1/3

Substitution:

5x + 3y = 16
- 3y
5x = 16 - 3y
÷ 5
x = 3.2 - 0.6y

5(3.2 - 0.6y) + 3y = 16
16 - 3y + 3y = 16
16  = 16
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Sorry the substitution messed up for some reason, I'll fix it after I've answered the other question

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3 years ago
Colton has a stone paperweight composed of a triangular pyramid on top of a triangular prism with the dimensions shown below. Us
Eva8 [605]

The area of the base would be found using the area of a triangle formula which is 1/2 x base x height.

The base and height are the two sides perpendicular to each other, which are both 5 inches.

The area of the base = 1/2 x 5 x 5 = 12.5 square inches.

The volume of the triangular prism is the area of the base times the height, which is 4 inches.

Volume of the triangular prism is 12.5 x 4 = 50 cubic inches.

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Volume of the triangular prism = 1/3 x 12.5 x 7 = 29.17 cubic inches.

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3 years ago
What are the domain and range of the function? f(x)=−3/5x^3
vichka [17]
<span>
f(x)= −3/5x³</span><span>

The domain is all values x can be. There are no restrictions on x. it can be any real number (-∞ , ∞)

The range is all values y can be. There are noi restrictions on y either because the function is odd. y is </span><span>(-∞ , ∞)

The best answer is D.
domain (-∞, 0] ∪[0, ∞)
range </span><span>(-∞, 0] ∪[0, ∞) </span>
3 0
3 years ago
What Is the percent equal to 3/10
lianna [129]
30 %
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3 years ago
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solong [7]

Answer:

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Step-by-step explanation:

Given

(- 10 - 2i) + (3 + i) ← remove parenthesis

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= - 7 - i

3 0
3 years ago
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