Answer:
x=4
Explanation:
7/2x-19=-13+2x
Add 19 to both sides
7/2x-19+19=-13+2x+19
7/2x=6+2x
Subtract both sides by 2x
7/2x-2x=6+2x-2x
7/2x-2x=6
Change 2x into a fraction
7/2x-4/2x=6
3/2x=6
Divide both sides by 3/2
(3/2x)/(3/2)=6/(3/2)
x=6/(3/2)
Dividing my a fraction is the same as multiplying its reciprocal
x=6*2/3
x=12/3
x=4
I hope this helps!
Answer:
Step-by-step explanation:
opens down refers to the value of a being negative or positive. If it opens down, then a is negative.
shifting left or right refers to the value of h
shifting up or down refers to the value of k
For the first one: y = -a (x+8)² + k
second one: y = -a(x+h)² + 7
L +2w = 500
a = lw
a) l = 500 -2w
.. a = (500 -2w)*w
b) The zeros of the above equation are w=0, w=250. The vertex of this quadratic is on the line of symmetry, halftway between the zeros, at w=125 ft.
c) a = (500 -2*125)*125 = 31,250 . . . . square feet
Answer:
Step-by-step explanation:
y
=
4
−
2
x
Answer:
I kinda did a lil of this in my head so i might not be 100% correct, but i would say the bigger group is 20 and the smaller group is 10
