Step-by-step explanation:
<u>Step 1: Substitute x from the second equation into the second one</u>







<u>Step 2: Substitute y into the second equation</u>




Answer: 
Answer:
see below
Step-by-step explanation:
We assume you want the graph of ...

A graphing calculator or spreadsheet is useful for this.
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You know cos(θ) = cos(-θ), so the graph is symmetrical about the x-axis. You can evaluate the function at a few points to find the general outline.
r at 0° = 8
r at 30° ≈ 7.05
r at 45° ≈ 6.19
r at 60° ≈ 5.33
r at 90° = 4
r at 120° = 3.2
r at 135° ≈ 2.96
r at 150° ≈ 2.79
r at 180° ≈ 2.67
Answer:
11
Step-by-step explanation:
Use corresponding angles.
Angle FBC is 180 - 147 which is 33.
This means x is 180 - 33 - Angle EBA.
EBA is 180 - 4x.
x = 180 - 33 - (180 - 4x)
x = 180 - 33 - 180 + 4x
-3x = 180 - 33 - 180
-3x = -33
3x = 33
x = 11
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Answer:
In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.
X = 15 , see photo for solutions