2 years ago

Which situation represents a proportional relationship?

Mathematics

2 answers:

JulijaS [17]2 years ago

7 0

Answer:

The first one

Step-by-step explanation:

You are taking one object times per pound, x, and than adding the cost for a basket.

seraphim [82]2 years ago

3 0

Answer:

A situation represents a proportional relationship if you can write equivalent ratios of related quantities in that situation.

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A= V^2/r Solve the formula for r.

kotegsom [21]

Answer:

$\bold{r=\dfrac{V^2}A}$

Step-by-step explanation:

$\bold{A=\dfrac{V^2}r}\\^{\cdot r}\qquad ^{\cdot r}\\\bold{Ar=V^2}\\ ^{\div A}\quad\ ^{\div A}\\\bold{r=\dfrac{V^2}A}$

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3 years ago

Find the component form of the vector v ⃗ with ‖v ⃗ ‖=4√3 when drawn in standard position v ⃗ lies in Quadrant II and makes a 30

nydimaria [60]

The answer:

first of all, we should know that the expression of a vector V (a, b) can be written as follow:

V = r (Vx i + Vyj), where r is the length of the vector, it is r = sqrt(V²x + V²y)
Vx is the component lying on the x-axis and Vy on the y-axis

v ⃗ lies in Quadrant II, means Vx is less than 0 (negative)

so Vx= -r sin30° and Vy= rcos30°

r= ‖v ⃗ ‖=4√3

so we have v = - 4√3sin30° i + 4√3 cos30° j

the components are

v(- 4√3sin30°, 4√3 cos30°) = (-2√3, 4√3 cos30°)

8 0

3 years ago

7. What is the slope of the line? 2x - 5y =8

Semenov [28]

Answer: slope is −25 - 2 5

Step-by-step explanation:

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3 years ago

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Every day, the Clark Pet Store uses 1 1/2 bags of dog food to feed the dogs. How many days will 7 1/2 bags of dog food last?

Lunna [17]

Sheeeesh i think the it’s 1/2 .2 in a meter of 55 6.789