Answer:
x=
−1
/2
y+4;all real numbers are solutions
Step-by-step explanation:
x=
−1
/2
y+4
4x+2y=16
4(-1/2y+4)+2y=16
all real numbers are solutions
166.66 try that i think it should be it
Divide both sides by 2.4
e=7
<em>a. 2√21 units</em>
- <em>Step-by-step explanation:</em>
<em>Hi there ! </em>
<u><em>Area formula</em></u>
<em>A = π·r²</em>
<em>84π = πr²</em>
<em>r² = 84π/π</em>
<em>r² = 84</em>
<em>r² = 2²×3×7</em>
<em>r = √2²×3×7</em>
<em>r = 2√3×7</em>
<em>r = 2√21</em>
<em>Good luck !</em>