y=2x^2+7x
factor out an x
y = x(2x+7)
using the zero product property
0 = x 0 = 2x+7
x = 0 -7 = 2x
-7/2 =x
The x intercepts are 0 , -7/2
Your answer is f(x) = 1/5x + 3/5
Hope I helped!
~ Zoe
Answer:
0.008
Step-by-step explanation:
because you have to divide it
20 days
x=number of days vacation
y=daily expenses
xy=1100
(x+2)(y-5)=1100
*******
xy-5x+2y-10=1100
xy-5x+2y=1110
y=1100/x
x(1100/x)-5x+2(1100/x)=1110
1100-5x+(2200/x)=1110
-5x+(2200/x)=10
-5x^2 + 2200 = 10x
-x^2 + (440) = 2x
x^2 - 440 + 2x = 0
(x+22)(x-20)=0
x=-22,20
only take the positive answer because the negative answer doesn't make sense in the question
so the answer is 20
****
I might be wrong; this question probation should've been this hard so I might have taken a wrong turn somewhere. feel free to double check my work
Answer:
1 2/21
Step-by-step explanation:
3/7+2/3.
Cross mutiply:
7*3 is 21.
3*3 is 9.
7*2 is 14.
14/21+9/21.
Add: 14+9=23.
23/21.
1 2/21.
Hope this helps plz hit the crown :D
