Step-by-step explanation:
(3x + 5y - 7r)/(z + t) = 9p
3x + 5y - 7r = 9p(z + t)
3x + 5y - 7r = 9pz + 9pt
3x = 9pz + 9pt - 5y + 7r
x = (9pz + 9pt -5y + 7r)/3
2880 / 112 = 25.71 square inches per hr
Answer:
All i did was divide
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
A constant rate of change refers to a pattern/slope that is unchanging. On a graph, these rate of changes are usually represented by a straight line, and B is the only graph in the question with such a line.
Finding zeros or setting y ot f(n) equal to zero
and all you have to do is factor it, hoping you know how to do this
5. 0= n^2-2n-15
(n-5)(n+3)= 0
n-5= 0 n+3=0
n=5 and n=-3
6.t^2+6t=27
t^2+6t-27=0
(t + 9) (t-3)= 0
t=-9 and t=3
7. x^2-9x=-18
x^2-9x+18=0
(x-6)(x-3)= 0
x=6 and x=3
8. a^2 - 7a = 30
a^2 - 7a -30= 0
(a-10)(a+3)=0
a=10 and a=-3
hope that helps