Hello,
Answer (1-√5,0) , (1+√5,0)
Indeed,
S=(1,20)
==> y=k*(x-1)²+20
(0,16) is a point of the parabola
==>16=k*(0-1)²+20==>k=-4
Parabola: y=-4(x-1)²+20
if y=0 then -4(x-1)²+20=0==> 4(x-1)²=20=> (x-1)²=5 ==> x=1+√5 or x=1-√5
Y²(y² + 19) + 3y - 5 + 8⁰
y²(y²) + y²(19) + 3y - 5 + 1
y⁴ + 19y² + 3y - 4
Answer:
21 questions
Step-by-step explanation:
First find the unit rate by dividing question number by hours
35/5=7
So he makes 7 questions per hour
Multiply 7 by 3
7*3=21
So, he makes 21 questions in 3 hours
Hope this helps! :)
Step-by-step explanation:
is there any pic that comes with it