A. Let x represent the number of miles and y represent the total price.
y=3x+15
B. Using the equation we just wrote, replace the x with 45.
y=3(45)+15
Now multiply 45 by 3.
y=135+15
And finally add together 135 and 15.
y=150
The total cost of a 45 mile taxi ride would be $150.00.
It all depends what place your rounding it to. if you round it to the highest place it is 400,000
r = 3 + 3cos(θ) polar equation would best match the desired audible range of the microphone.
<h3>
How do you know if an equation is polar?</h3>
- Determine the kind of polar equation.
- The polar equation has the shape of a limaçon, and is written as r = a - b cos.
- We just need to assess the equation throughout the range [0, 1] and then reflect the graph about the polar axis because the equation passes the condition for symmetry to the polar axis.
<h3>What is a polar in math?</h3>
- The polar coordinate system in mathematics is a two-dimensional coordinate system in which the distance from a reference point and the angle from a reference direction are used to identify each point's location on a plane.
<h3>What is the meaning of polar form?</h3>
- In addition to the rectangular form, a complex number can also be represented in polar form.
- Typically, we write complex numbers as z = x + iy, where I is an imaginary integer.
- However, in polar form, complex numbers are modeled as a union of argument and modulus.
Learn more about polar form here:
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Hey there!
Apply fraction cross multiply: if a/b = c/d , then a *d = b*c
2 ( 5x - 2 ) = ( 2x + 4 ) * 4
expand : 2 (5x-2 ) => 2*5x - 2*2 => 10x - 4
expand : ( 2x +4 ) * 4 => 2x * 4 + 4*4 => 8x + 16
10x - 4 = 8x+16
add 4 to both sides:
10x-4+4 = 8x+16+4
simplify :
10x = 8x + 20
subtract 8x from both sides:
10x -8x = 8x+20-8x
simplify:
2x = 20
Therefore:
x = 20 / 2
x = 10
Hope that helps!
Answer:
-8.57142857143
Step-by-step explanation:
-8.57142857143