Multiply .......................
First one
eliminate q's
multiply 2nd equation by -1 and add to 2nd
5p-3q=-39
<u>2p+3q=-3 +</u>
7p+0q=-42
7p=-42
divide both sides by 7
p=-6
sub back
-2p-3q=3
-2(-6)-3q=3
12-3q=3
minus 12
-3q=-9
divide -3
q=3
p=-6
q=3
2nd one
eliminate y's
multiply first equation by -1 and add to 2nd
-4x+3y=-12
<u>7x-3y=3 +</u>
3x+0y=-9
3x=-9
divide both sides by 3
x=-3
sub back
4x-3y=12
4(-3)-3y=12
-12-3y=12
-3y=24
y=-8
(x,y)
(3,-8)
Answer:
Step-by-step explanation:
Uhh where’s the pic
The question is asking you to find the axis of symmetry, which is the x-value of the vertex. In order to do that you need to factor the function to find the zeros and add the zeros together and divide by two to find the axis of symmetry.
y=-16x^2+608x
y=-16x(x-38)
Zeros: x=0 and x=38
38/2=19
Therefore it takes 19 seconds for the projectile to reach its maximum height.
Hope this helps!
Answer: d and b i think
Step-by-step explanation:
