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3 years ago

MATH1314-1043,1044 16wks SPR21

Mathematics

1 answer:

Brilliant_brown [7]3 years ago

6 0

Step-by-step explanation:

how where is the graph cause I don't understand that

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Please help meeeeeeeeeeeeeee

stepladder [879]

Answer:

multiply it by 2

Step-by-step explanation:

3 0

2 years ago

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What is the measure of angle F ??

masha68 [24]

9x+14x+4x+90 = 360
27x = 270
x = 10

<F = 14x = 14(10) = 140

4 0

3 years ago

b) If parametric equations of a flow line are x = x(t), y = y(t), explain why these functions satisfy the differential equations

sineoko [7]

Answer:

The equation of the the flow line that passes through the point (x, y) = (−1, −1) is

In y + In x = 0 or in another form, xy = 1.

Step-by-step explanation:

The pathline equation for a vector field is given by F(x,y) = xî - yj

The velocity vector field for the streamline of the flow is given by

V(x, y) = (dx/dt)î + (dy/dt)j

From the question, it is given that

(dx/dt) = x

(dy/dt) = -y

Hence, the velocity vector field for the streamline of the flow in question is

V(x, y) = xî - yj

which coincides with the pathline vector field of the flow.

The only time the pathline and streamline vector field coincide and have the same equation is when the flow is a steady state flow.

That is, the properties of the fluid flowing isn't changing with time!

Hence, this flow is a steady state flow!

We're told to solve the differential equation.

(dx/dt) = x

(dy/dt) = -y

but

(dy/dx) = (dy/dt) × (dt/dx)

(dy/dx) = -y/x

(dy/y) = -(dx/x)

∫(dy/y) = -∫ (dx/x)

In y = - In x + c

where c is the constant of integration

In y + In x = c

In (xy) = c

Inserting the values of (x, y) given in the question,

In (-1 × -1) = c

In 1 = c

0 = c

c = 0

In y + In x = 0

In (yx) = 0

xy = e⁰ = 1

xy = 1

So, the equation of the the flow line that passes through the point (x, y) = (−1, −1) is

In y + In x = 0 or in another form, xy = 1

Hope this Helps!!!

4 0

3 years ago

How to solve system of equation from a table

faust18 [17]

Answer:

Look for the same entry in both (all) tables.

Step-by-step explanation:

We assume here that the system of equations consists of two equations in two variables. If there are more equations in more variables, the general approach is the same.

A "solution" to a system of equations is a set of variable values that satisfies all equations of the system simultaneously. A table for one equation will generally list sets of variable values that satisfy that equation. <em>When the same set of values appears in the table for each of the equations, then that set of values is the solution</em>.

<u>Example</u>

The attachment shows tables for two equations:

y = 2x
y = x+3

Highlighted are the table entries that are the same for both equations. This is the solution to the system of equations. (x, y) = (3, 6) satisfies both equations:

6 = 2·3
6 = 3+3

7 0

3 years ago

What is the radius of a circle whose equation is (x 5)2 (y – 3)2 = 42?

jek_recluse [69]

Hello,

(x+5)²+(y-3)²=42

Center is (-5,3)
And radius= √42≠6.48074...

5 0

3 years ago

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