You multiply all of the As by 7 and all of the Bs by 6 and then add all of the numbers
Hello :
q(r)=3<span>√(r²-16)
q exist : r² - 16 </span><span>≥ 0
r² </span><span>≥ 16
</span>√r² ≥ √16
but : √16 = 4 and √r² = <span>|r
|
</span>|r | ≥ 4
r ≤ 4 or r ≥ 4
the domain is : ] -∞, 4] ∪ [,4 , +
∞ [
The answer is 5 weeks
40x+15=200
x=4.6 and we round that up to 5 weeks
