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Wittaler [7]
3 years ago
13

The quantities x and y are proportional.

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
4 0

Answer:

r=3,r=25/27,r=3

Step-by-step explanation:

In equation y=rx

make r the subject of the formula by dividing both sides by x

r=y/x

1). when y=15 and x=5

r=15/5

r=3

2). when y=25 and x=81/3

r=25/81/3

r=25÷81/3

r=25*3/81

r=75/27

r=25/27

3). when y=33 and x=11

r=33/11

r=3

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Answer:

3052. 08

Step-by-step explanation:

volume = 4/3πr^3

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3 years ago
A company manufactures replacement parts for construction cranes. The fixed manufacturing cost is $2,400, and the variable cost
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The minimum number of parts is 800
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The vector v⃗ in 2-space of length 3 pointing up at an angle of π/4 measured from the positive x-axis.
allsm [11]

The vector v in 2-space of length 3 pointing up at an angle of π/4 measured from the positive x-axis is: (3/√2, 3√2) and The vector w in 3-space of length 1 lying in the yz-plane pointing upward at an angle of 2π/3 measured from the positive y-axis is: (0, -1/2, √3/2).

<h3>Vector</h3>

a. Vector (v)

Vector (v)=v (cos Ф, sin Ф)

V=1 while the counterclockwise angle that is measured from positive x=Ф=π/4

Hence:

Vector=3(cos π/4, sinπ/4)

Vector=(3/√2, 3√2)

b. Vector w:

Vector w=1(0, cos 2π/3, sin2π/3)

Vector w=(0, -1/2, √3/2)

Therefore the vector v in 2-space of length 3 pointing up at an angle of π/4 measured from the positive x-axis is: (3/√2, 3√2) and The vector ws: (0, -1/2, √3/2).

The complete question is:

Resolve the following vectors into components:

a. The vector v in 2-space of length 3 pointing up at an angle of π/4 measured from the positive x-axis.

(b) The vector w in 3-space of length 1 lying in the yz-plane pointing upward at an angle of 2π/3 measured from the positive y-axis.

Learn more about vector here:brainly.com/question/25705666

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2 years ago
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

1) move everything over to the left side, so subtract 11x and 6.

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3) factor and find what multiples to -12 and adds up to -11. in this case its -12 and positive 1

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3 years ago
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