Answer:
2,-1
Step-by-step explanation:
2x^2 -2x -4 =0
Factor out a 2
2(x^2 -x-2) =0
What 2 number multiply to -2 and add to -1
-2*1 = -2
-2 +1 = -1
2(x-2) (x+1) =0
Using the zero product property
x-2 = 0 x+1 = 0
x-2+2=0+2 x+1-1=0-1
x=2 x=-1
Answer:
DELETE i will answer later doe:)
Step-by-step explanation:
Answer:
3) 30 ft
4) 4.8 inches
6) Perimeter = 16 Area = 24
7) Perimeter = 28 Area = 32
8) Perimeter = 29 Area = around 50
Answer:
a = 127°
Step-by-step explanation:
The 3 angles lie on a straight line and have a sum of 180°, that is
15° + a + 38° = 180°
53° + a = 180° ( subtract 53° from both sides )
a = 127°
Answer:
There would be 12 total picks.
Step-by-step explanation:
In order to find this, create a proportional equality in which the top of the equation is the number of orange picks and the bottom is the number of green picks.
2/1 = x/4
Now we cross multiply to find out the total number of picks.
1*x = 4*2
x = 8
Now that we have the number of orange picks, we add to the number of green picks for the total number.
4 + 8 = 12
