Answer:

Step-by-step explanation:
Quadratic Formula: 
√-1 is imaginary number i
Step 1: Define
y = -3x² + 4.5x - 20
a = -3
b = 4.5
c = -20
Step 2: Substitute and Evaluate







Answer:
202000''
Step-by-step explanation:
(20*100*100)+(20*100)
200000+2000
202000
Answer:
109 square feet.
Step-by-step explanation:
109 in: = 109/12 = 9.0833333.... = 9 5/60 = (540+5)/60 = 545/60
Area = L*w
L = 545/60 feet
W = 12 feet
Area = 545/60 * 12
Area = 545*12/60
Area = 545 /5 = 109 square feet.
Answer:
Option 2 is correct.
Step-by-step explanation:
Given the coordinates of lines segment (3, 10) and (7, 8). we have to find the mid-point of given line segment.
Mid-point formula states that if
and
are the coordinates of end points of line segment then the coordinates of mid-point are

∴ Coordinates of mid-point of line segment joining the points (3, 10) and (7, 8) are

Hence, option 2 is correct.
Answer:
1. SSS; Triangle ABC is congruent to Triangle DEF; sorry there's no triangle symbol on here.
2. HL; CBA is congruent to ZYX; or ABC is congruent to XYZ
Step-by-step explanation: