I have to watch the videos for the one
V=(-5,-4)
to find the vertex you use V=-b/2a
y=-3(x+5)^2-4
which then turns to
y=-3x^2-30x-79
a=-3
b=-30 x=30/2(-3)
x=30/-6
x=-5
plug x into the equation and solve for y =-3(-5)^2-30(-5)-79
y=-4
x=-5 y=-4 Vertex=(-5,-4)
I believe it’s the last one
Answer:
Step-by-step explanation:
The first step to adding fractions is reaching a common denominator. From there, we simply add and simplify if necessary. The steps for this problem are as follows…get to a common denominator of 20 by changing 1/4 to 5/20, and by changing 2/5 for 8/20. Since these fractions are equal to the previous it does not change the result of the problem.Add 5/20 + 8/20We then get to the result of 13/20 and since thirteen is a prime number we cannot simplify further.
Hope this helps!
