Answer:
Step-by-step explanation:
Just multiply the two sides
1.
Use FOIL (First, Outer, Inner, Last)
2.
^ After simplifying
Answer: -30
Step-by-step explanation:
g(x)=3x-3
for g(-9)
g(-9)=3(-9)-3
= -27-3
g(-3) =-30
Step-by-step explanation:
since it's negative it'll give you a different answer:)
Answer:
As per the statement:
The path that the object takes as it falls to the ground can be modeled by
h =-16t^2 + 80t + 300
where
h is the height of the objects and
t is the time (in seconds)
At t = 0 , h = 300 ft
When the objects hit the ground, h = 0
then;
-16t^2+80t+300=0
For a quadratic equation: ax^2+bx+c=0 ......[1]
the solution for the equation is given by:
On comparing the given equation with [1] we have;
a = -16 ,b = 80 and c = 300
then;
Simplify:
= -2.5 sec and = 7.5 sec
Time can't be in negative;
therefore, the time it took the object to hit the ground is 7.5 sec
Y = 2x + 3
y = 2(-1) + 3
y = -2 + 3
y = 1
Answer: 1 or D