Answer:
The ordered pair that makes an equation true is called a solution
a)solution
b) not a solution
c) solution
d) solution
e)not a solution
f) not a solution
g) solution
h) not a solution
Step-by-step explanation:
The first number in an ordered pair is x, the second one is y
Plug in the numbers to x and y respectively
I'll give two examples so you know how to solve it
a) y=3x+1
-5=3(-2)+1
make sure you use pemdas (multiply first)
-5=-6+1
add
-5=-5
this is true (meaning it is a solution)
b) 6=3(-3) +1
6=-9+1
6 = -8
this is NOT true (not a solution)
If you have any questions feel free to ask
Answer:
11 inches
Step-by-step explanation:
square root of 121 = 11
Answer:
-6
Step-by-step explanation:
Substitute -2 from x meaning -2^3+-2^2-3*-2; solve this, you get -6!
Answer:
2.2 seconds
Step-by-step explanation:
h(t)=-16t^2+bt+c
We know the initial velocity is 35 = b
We know the initial height is 0 =c
h(t)=-16t^2+35t+0
h(t)=-16t^2+35t
Question 1 is to find when the ball hits the ground or when h(t) is 0
0=-16t^2+35t
Factor out a t
0 = t( -16t+35)
We can use the zero product property to solve for t
t=0 -16t+35 =0
Subtract 35 from each side
-16t = -35
Divide by -16
-16t/-16 = -35/-16
t = 2.1875 seconds
t=0 is when the ball is kicked
t =2.1875 is when the ball lands on the ground after being kicked
Rounded to the nearest tenth
2.2 seconds
19.1 ft
The maximum height is at the axis of symmetry
h = -b/2a
-35/(2*-16)
-35/-32
35/32
This is the t value
To find the maximum height , we need to put this in the equation to find the y value
h(35/32) = -16( 35/32)^2 + 35 *(35/32)
= -16* 1.196289 +38.28125
19.140625 ft
Rounding to the nearest tenth
19.1 ft
